Summary: Pull Request resolved: https://github.com/facebook/rocksdb/pull/9266 This diff adds a new tag `CommitWithTimestamp`. Currently, there is no API to trigger writing this tag to WAL, thus it is unavailable to users. This is an ongoing effort to add user-defined timestamp support to write-committed transactions. This diff also indicates all column families that may potentially participate in the same transaction must either disable timestamp or have the same timestamp format, since `CommitWithTimestamp` tag is followed by a single byte-array denoting the commit timestamp of the transaction. We will enforce this checking in a future diff. We keep this diff small. Reviewed By: ltamasi Differential Revision: D31721350 fbshipit-source-id: e1450811443647feb6ca01adec4c8aaae270ffc6
2398 lines
89 KiB
C++
2398 lines
89 KiB
C++
// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
|
|
// This source code is licensed under both the GPLv2 (found in the
|
|
// COPYING file in the root directory) and Apache 2.0 License
|
|
// (found in the LICENSE.Apache file in the root directory).
|
|
//
|
|
// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style license that can be
|
|
// found in the LICENSE file. See the AUTHORS file for names of contributors.
|
|
//
|
|
// WriteBatch::rep_ :=
|
|
// sequence: fixed64
|
|
// count: fixed32
|
|
// data: record[count]
|
|
// record :=
|
|
// kTypeValue varstring varstring
|
|
// kTypeDeletion varstring
|
|
// kTypeSingleDeletion varstring
|
|
// kTypeRangeDeletion varstring varstring
|
|
// kTypeMerge varstring varstring
|
|
// kTypeColumnFamilyValue varint32 varstring varstring
|
|
// kTypeColumnFamilyDeletion varint32 varstring
|
|
// kTypeColumnFamilySingleDeletion varint32 varstring
|
|
// kTypeColumnFamilyRangeDeletion varint32 varstring varstring
|
|
// kTypeColumnFamilyMerge varint32 varstring varstring
|
|
// kTypeBeginPrepareXID varstring
|
|
// kTypeEndPrepareXID
|
|
// kTypeCommitXID varstring
|
|
// kTypeRollbackXID varstring
|
|
// kTypeBeginPersistedPrepareXID varstring
|
|
// kTypeBeginUnprepareXID varstring
|
|
// kTypeNoop
|
|
// varstring :=
|
|
// len: varint32
|
|
// data: uint8[len]
|
|
|
|
#include "rocksdb/write_batch.h"
|
|
|
|
#include <map>
|
|
#include <stack>
|
|
#include <stdexcept>
|
|
#include <type_traits>
|
|
#include <unordered_map>
|
|
#include <vector>
|
|
|
|
#include "db/column_family.h"
|
|
#include "db/db_impl/db_impl.h"
|
|
#include "db/dbformat.h"
|
|
#include "db/flush_scheduler.h"
|
|
#include "db/kv_checksum.h"
|
|
#include "db/memtable.h"
|
|
#include "db/merge_context.h"
|
|
#include "db/snapshot_impl.h"
|
|
#include "db/trim_history_scheduler.h"
|
|
#include "db/write_batch_internal.h"
|
|
#include "monitoring/perf_context_imp.h"
|
|
#include "monitoring/statistics.h"
|
|
#include "port/lang.h"
|
|
#include "rocksdb/merge_operator.h"
|
|
#include "rocksdb/system_clock.h"
|
|
#include "util/autovector.h"
|
|
#include "util/cast_util.h"
|
|
#include "util/coding.h"
|
|
#include "util/duplicate_detector.h"
|
|
#include "util/string_util.h"
|
|
|
|
namespace ROCKSDB_NAMESPACE {
|
|
|
|
// anon namespace for file-local types
|
|
namespace {
|
|
|
|
enum ContentFlags : uint32_t {
|
|
DEFERRED = 1 << 0,
|
|
HAS_PUT = 1 << 1,
|
|
HAS_DELETE = 1 << 2,
|
|
HAS_SINGLE_DELETE = 1 << 3,
|
|
HAS_MERGE = 1 << 4,
|
|
HAS_BEGIN_PREPARE = 1 << 5,
|
|
HAS_END_PREPARE = 1 << 6,
|
|
HAS_COMMIT = 1 << 7,
|
|
HAS_ROLLBACK = 1 << 8,
|
|
HAS_DELETE_RANGE = 1 << 9,
|
|
HAS_BLOB_INDEX = 1 << 10,
|
|
HAS_BEGIN_UNPREPARE = 1 << 11,
|
|
};
|
|
|
|
struct BatchContentClassifier : public WriteBatch::Handler {
|
|
uint32_t content_flags = 0;
|
|
|
|
Status PutCF(uint32_t, const Slice&, const Slice&) override {
|
|
content_flags |= ContentFlags::HAS_PUT;
|
|
return Status::OK();
|
|
}
|
|
|
|
Status DeleteCF(uint32_t, const Slice&) override {
|
|
content_flags |= ContentFlags::HAS_DELETE;
|
|
return Status::OK();
|
|
}
|
|
|
|
Status SingleDeleteCF(uint32_t, const Slice&) override {
|
|
content_flags |= ContentFlags::HAS_SINGLE_DELETE;
|
|
return Status::OK();
|
|
}
|
|
|
|
Status DeleteRangeCF(uint32_t, const Slice&, const Slice&) override {
|
|
content_flags |= ContentFlags::HAS_DELETE_RANGE;
|
|
return Status::OK();
|
|
}
|
|
|
|
Status MergeCF(uint32_t, const Slice&, const Slice&) override {
|
|
content_flags |= ContentFlags::HAS_MERGE;
|
|
return Status::OK();
|
|
}
|
|
|
|
Status PutBlobIndexCF(uint32_t, const Slice&, const Slice&) override {
|
|
content_flags |= ContentFlags::HAS_BLOB_INDEX;
|
|
return Status::OK();
|
|
}
|
|
|
|
Status MarkBeginPrepare(bool unprepare) override {
|
|
content_flags |= ContentFlags::HAS_BEGIN_PREPARE;
|
|
if (unprepare) {
|
|
content_flags |= ContentFlags::HAS_BEGIN_UNPREPARE;
|
|
}
|
|
return Status::OK();
|
|
}
|
|
|
|
Status MarkEndPrepare(const Slice&) override {
|
|
content_flags |= ContentFlags::HAS_END_PREPARE;
|
|
return Status::OK();
|
|
}
|
|
|
|
Status MarkCommit(const Slice&) override {
|
|
content_flags |= ContentFlags::HAS_COMMIT;
|
|
return Status::OK();
|
|
}
|
|
|
|
Status MarkCommitWithTimestamp(const Slice&, const Slice&) override {
|
|
content_flags |= ContentFlags::HAS_COMMIT;
|
|
return Status::OK();
|
|
}
|
|
|
|
Status MarkRollback(const Slice&) override {
|
|
content_flags |= ContentFlags::HAS_ROLLBACK;
|
|
return Status::OK();
|
|
}
|
|
};
|
|
|
|
} // anon namespace
|
|
|
|
struct SavePoints {
|
|
std::stack<SavePoint, autovector<SavePoint>> stack;
|
|
};
|
|
|
|
WriteBatch::WriteBatch(size_t reserved_bytes, size_t max_bytes)
|
|
: content_flags_(0), max_bytes_(max_bytes), rep_() {
|
|
rep_.reserve((reserved_bytes > WriteBatchInternal::kHeader)
|
|
? reserved_bytes
|
|
: WriteBatchInternal::kHeader);
|
|
rep_.resize(WriteBatchInternal::kHeader);
|
|
}
|
|
|
|
WriteBatch::WriteBatch(size_t reserved_bytes, size_t max_bytes,
|
|
size_t protection_bytes_per_key)
|
|
: content_flags_(0), max_bytes_(max_bytes), rep_() {
|
|
// Currently `protection_bytes_per_key` can only be enabled at 8 bytes per
|
|
// entry.
|
|
assert(protection_bytes_per_key == 0 || protection_bytes_per_key == 8);
|
|
if (protection_bytes_per_key != 0) {
|
|
prot_info_.reset(new WriteBatch::ProtectionInfo());
|
|
}
|
|
rep_.reserve((reserved_bytes > WriteBatchInternal::kHeader)
|
|
? reserved_bytes
|
|
: WriteBatchInternal::kHeader);
|
|
rep_.resize(WriteBatchInternal::kHeader);
|
|
}
|
|
|
|
WriteBatch::WriteBatch(const std::string& rep)
|
|
: content_flags_(ContentFlags::DEFERRED), max_bytes_(0), rep_(rep) {}
|
|
|
|
WriteBatch::WriteBatch(std::string&& rep)
|
|
: content_flags_(ContentFlags::DEFERRED),
|
|
max_bytes_(0),
|
|
rep_(std::move(rep)) {}
|
|
|
|
WriteBatch::WriteBatch(const WriteBatch& src)
|
|
: wal_term_point_(src.wal_term_point_),
|
|
content_flags_(src.content_flags_.load(std::memory_order_relaxed)),
|
|
max_bytes_(src.max_bytes_),
|
|
rep_(src.rep_) {
|
|
if (src.save_points_ != nullptr) {
|
|
save_points_.reset(new SavePoints());
|
|
save_points_->stack = src.save_points_->stack;
|
|
}
|
|
if (src.prot_info_ != nullptr) {
|
|
prot_info_.reset(new WriteBatch::ProtectionInfo());
|
|
prot_info_->entries_ = src.prot_info_->entries_;
|
|
}
|
|
}
|
|
|
|
WriteBatch::WriteBatch(WriteBatch&& src) noexcept
|
|
: save_points_(std::move(src.save_points_)),
|
|
wal_term_point_(std::move(src.wal_term_point_)),
|
|
content_flags_(src.content_flags_.load(std::memory_order_relaxed)),
|
|
max_bytes_(src.max_bytes_),
|
|
prot_info_(std::move(src.prot_info_)),
|
|
rep_(std::move(src.rep_)) {}
|
|
|
|
WriteBatch& WriteBatch::operator=(const WriteBatch& src) {
|
|
if (&src != this) {
|
|
this->~WriteBatch();
|
|
new (this) WriteBatch(src);
|
|
}
|
|
return *this;
|
|
}
|
|
|
|
WriteBatch& WriteBatch::operator=(WriteBatch&& src) {
|
|
if (&src != this) {
|
|
this->~WriteBatch();
|
|
new (this) WriteBatch(std::move(src));
|
|
}
|
|
return *this;
|
|
}
|
|
|
|
WriteBatch::~WriteBatch() { }
|
|
|
|
WriteBatch::Handler::~Handler() { }
|
|
|
|
void WriteBatch::Handler::LogData(const Slice& /*blob*/) {
|
|
// If the user has not specified something to do with blobs, then we ignore
|
|
// them.
|
|
}
|
|
|
|
bool WriteBatch::Handler::Continue() {
|
|
return true;
|
|
}
|
|
|
|
void WriteBatch::Clear() {
|
|
rep_.clear();
|
|
rep_.resize(WriteBatchInternal::kHeader);
|
|
|
|
content_flags_.store(0, std::memory_order_relaxed);
|
|
|
|
if (save_points_ != nullptr) {
|
|
while (!save_points_->stack.empty()) {
|
|
save_points_->stack.pop();
|
|
}
|
|
}
|
|
|
|
if (prot_info_ != nullptr) {
|
|
prot_info_->entries_.clear();
|
|
}
|
|
wal_term_point_.clear();
|
|
}
|
|
|
|
uint32_t WriteBatch::Count() const { return WriteBatchInternal::Count(this); }
|
|
|
|
uint32_t WriteBatch::ComputeContentFlags() const {
|
|
auto rv = content_flags_.load(std::memory_order_relaxed);
|
|
if ((rv & ContentFlags::DEFERRED) != 0) {
|
|
BatchContentClassifier classifier;
|
|
// Should we handle status here?
|
|
Iterate(&classifier).PermitUncheckedError();
|
|
rv = classifier.content_flags;
|
|
|
|
// this method is conceptually const, because it is performing a lazy
|
|
// computation that doesn't affect the abstract state of the batch.
|
|
// content_flags_ is marked mutable so that we can perform the
|
|
// following assignment
|
|
content_flags_.store(rv, std::memory_order_relaxed);
|
|
}
|
|
return rv;
|
|
}
|
|
|
|
void WriteBatch::MarkWalTerminationPoint() {
|
|
wal_term_point_.size = GetDataSize();
|
|
wal_term_point_.count = Count();
|
|
wal_term_point_.content_flags = content_flags_;
|
|
}
|
|
|
|
size_t WriteBatch::GetProtectionBytesPerKey() const {
|
|
if (prot_info_ != nullptr) {
|
|
return prot_info_->GetBytesPerKey();
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
bool WriteBatch::HasPut() const {
|
|
return (ComputeContentFlags() & ContentFlags::HAS_PUT) != 0;
|
|
}
|
|
|
|
bool WriteBatch::HasDelete() const {
|
|
return (ComputeContentFlags() & ContentFlags::HAS_DELETE) != 0;
|
|
}
|
|
|
|
bool WriteBatch::HasSingleDelete() const {
|
|
return (ComputeContentFlags() & ContentFlags::HAS_SINGLE_DELETE) != 0;
|
|
}
|
|
|
|
bool WriteBatch::HasDeleteRange() const {
|
|
return (ComputeContentFlags() & ContentFlags::HAS_DELETE_RANGE) != 0;
|
|
}
|
|
|
|
bool WriteBatch::HasMerge() const {
|
|
return (ComputeContentFlags() & ContentFlags::HAS_MERGE) != 0;
|
|
}
|
|
|
|
bool ReadKeyFromWriteBatchEntry(Slice* input, Slice* key, bool cf_record) {
|
|
assert(input != nullptr && key != nullptr);
|
|
// Skip tag byte
|
|
input->remove_prefix(1);
|
|
|
|
if (cf_record) {
|
|
// Skip column_family bytes
|
|
uint32_t cf;
|
|
if (!GetVarint32(input, &cf)) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
// Extract key
|
|
return GetLengthPrefixedSlice(input, key);
|
|
}
|
|
|
|
bool WriteBatch::HasBeginPrepare() const {
|
|
return (ComputeContentFlags() & ContentFlags::HAS_BEGIN_PREPARE) != 0;
|
|
}
|
|
|
|
bool WriteBatch::HasEndPrepare() const {
|
|
return (ComputeContentFlags() & ContentFlags::HAS_END_PREPARE) != 0;
|
|
}
|
|
|
|
bool WriteBatch::HasCommit() const {
|
|
return (ComputeContentFlags() & ContentFlags::HAS_COMMIT) != 0;
|
|
}
|
|
|
|
bool WriteBatch::HasRollback() const {
|
|
return (ComputeContentFlags() & ContentFlags::HAS_ROLLBACK) != 0;
|
|
}
|
|
|
|
Status ReadRecordFromWriteBatch(Slice* input, char* tag,
|
|
uint32_t* column_family, Slice* key,
|
|
Slice* value, Slice* blob, Slice* xid) {
|
|
assert(key != nullptr && value != nullptr);
|
|
*tag = (*input)[0];
|
|
input->remove_prefix(1);
|
|
*column_family = 0; // default
|
|
switch (*tag) {
|
|
case kTypeColumnFamilyValue:
|
|
if (!GetVarint32(input, column_family)) {
|
|
return Status::Corruption("bad WriteBatch Put");
|
|
}
|
|
FALLTHROUGH_INTENDED;
|
|
case kTypeValue:
|
|
if (!GetLengthPrefixedSlice(input, key) ||
|
|
!GetLengthPrefixedSlice(input, value)) {
|
|
return Status::Corruption("bad WriteBatch Put");
|
|
}
|
|
break;
|
|
case kTypeColumnFamilyDeletion:
|
|
case kTypeColumnFamilySingleDeletion:
|
|
if (!GetVarint32(input, column_family)) {
|
|
return Status::Corruption("bad WriteBatch Delete");
|
|
}
|
|
FALLTHROUGH_INTENDED;
|
|
case kTypeDeletion:
|
|
case kTypeSingleDeletion:
|
|
if (!GetLengthPrefixedSlice(input, key)) {
|
|
return Status::Corruption("bad WriteBatch Delete");
|
|
}
|
|
break;
|
|
case kTypeColumnFamilyRangeDeletion:
|
|
if (!GetVarint32(input, column_family)) {
|
|
return Status::Corruption("bad WriteBatch DeleteRange");
|
|
}
|
|
FALLTHROUGH_INTENDED;
|
|
case kTypeRangeDeletion:
|
|
// for range delete, "key" is begin_key, "value" is end_key
|
|
if (!GetLengthPrefixedSlice(input, key) ||
|
|
!GetLengthPrefixedSlice(input, value)) {
|
|
return Status::Corruption("bad WriteBatch DeleteRange");
|
|
}
|
|
break;
|
|
case kTypeColumnFamilyMerge:
|
|
if (!GetVarint32(input, column_family)) {
|
|
return Status::Corruption("bad WriteBatch Merge");
|
|
}
|
|
FALLTHROUGH_INTENDED;
|
|
case kTypeMerge:
|
|
if (!GetLengthPrefixedSlice(input, key) ||
|
|
!GetLengthPrefixedSlice(input, value)) {
|
|
return Status::Corruption("bad WriteBatch Merge");
|
|
}
|
|
break;
|
|
case kTypeColumnFamilyBlobIndex:
|
|
if (!GetVarint32(input, column_family)) {
|
|
return Status::Corruption("bad WriteBatch BlobIndex");
|
|
}
|
|
FALLTHROUGH_INTENDED;
|
|
case kTypeBlobIndex:
|
|
if (!GetLengthPrefixedSlice(input, key) ||
|
|
!GetLengthPrefixedSlice(input, value)) {
|
|
return Status::Corruption("bad WriteBatch BlobIndex");
|
|
}
|
|
break;
|
|
case kTypeLogData:
|
|
assert(blob != nullptr);
|
|
if (!GetLengthPrefixedSlice(input, blob)) {
|
|
return Status::Corruption("bad WriteBatch Blob");
|
|
}
|
|
break;
|
|
case kTypeNoop:
|
|
case kTypeBeginPrepareXID:
|
|
// This indicates that the prepared batch is also persisted in the db.
|
|
// This is used in WritePreparedTxn
|
|
case kTypeBeginPersistedPrepareXID:
|
|
// This is used in WriteUnpreparedTxn
|
|
case kTypeBeginUnprepareXID:
|
|
break;
|
|
case kTypeEndPrepareXID:
|
|
if (!GetLengthPrefixedSlice(input, xid)) {
|
|
return Status::Corruption("bad EndPrepare XID");
|
|
}
|
|
break;
|
|
case kTypeCommitXIDAndTimestamp:
|
|
if (!GetLengthPrefixedSlice(input, key)) {
|
|
return Status::Corruption("bad commit timestamp");
|
|
}
|
|
FALLTHROUGH_INTENDED;
|
|
case kTypeCommitXID:
|
|
if (!GetLengthPrefixedSlice(input, xid)) {
|
|
return Status::Corruption("bad Commit XID");
|
|
}
|
|
break;
|
|
case kTypeRollbackXID:
|
|
if (!GetLengthPrefixedSlice(input, xid)) {
|
|
return Status::Corruption("bad Rollback XID");
|
|
}
|
|
break;
|
|
default:
|
|
return Status::Corruption("unknown WriteBatch tag");
|
|
}
|
|
return Status::OK();
|
|
}
|
|
|
|
Status WriteBatch::Iterate(Handler* handler) const {
|
|
if (rep_.size() < WriteBatchInternal::kHeader) {
|
|
return Status::Corruption("malformed WriteBatch (too small)");
|
|
}
|
|
|
|
return WriteBatchInternal::Iterate(this, handler, WriteBatchInternal::kHeader,
|
|
rep_.size());
|
|
}
|
|
|
|
Status WriteBatchInternal::Iterate(const WriteBatch* wb,
|
|
WriteBatch::Handler* handler, size_t begin,
|
|
size_t end) {
|
|
if (begin > wb->rep_.size() || end > wb->rep_.size() || end < begin) {
|
|
return Status::Corruption("Invalid start/end bounds for Iterate");
|
|
}
|
|
assert(begin <= end);
|
|
Slice input(wb->rep_.data() + begin, static_cast<size_t>(end - begin));
|
|
bool whole_batch =
|
|
(begin == WriteBatchInternal::kHeader) && (end == wb->rep_.size());
|
|
|
|
Slice key, value, blob, xid;
|
|
// Sometimes a sub-batch starts with a Noop. We want to exclude such Noops as
|
|
// the batch boundary symbols otherwise we would mis-count the number of
|
|
// batches. We do that by checking whether the accumulated batch is empty
|
|
// before seeing the next Noop.
|
|
bool empty_batch = true;
|
|
uint32_t found = 0;
|
|
Status s;
|
|
char tag = 0;
|
|
uint32_t column_family = 0; // default
|
|
bool last_was_try_again = false;
|
|
bool handler_continue = true;
|
|
while (((s.ok() && !input.empty()) || UNLIKELY(s.IsTryAgain()))) {
|
|
handler_continue = handler->Continue();
|
|
if (!handler_continue) {
|
|
break;
|
|
}
|
|
|
|
if (LIKELY(!s.IsTryAgain())) {
|
|
last_was_try_again = false;
|
|
tag = 0;
|
|
column_family = 0; // default
|
|
|
|
s = ReadRecordFromWriteBatch(&input, &tag, &column_family, &key, &value,
|
|
&blob, &xid);
|
|
if (!s.ok()) {
|
|
return s;
|
|
}
|
|
} else {
|
|
assert(s.IsTryAgain());
|
|
assert(!last_was_try_again); // to detect infinite loop bugs
|
|
if (UNLIKELY(last_was_try_again)) {
|
|
return Status::Corruption(
|
|
"two consecutive TryAgain in WriteBatch handler; this is either a "
|
|
"software bug or data corruption.");
|
|
}
|
|
last_was_try_again = true;
|
|
s = Status::OK();
|
|
}
|
|
|
|
switch (tag) {
|
|
case kTypeColumnFamilyValue:
|
|
case kTypeValue:
|
|
assert(wb->content_flags_.load(std::memory_order_relaxed) &
|
|
(ContentFlags::DEFERRED | ContentFlags::HAS_PUT));
|
|
s = handler->PutCF(column_family, key, value);
|
|
if (LIKELY(s.ok())) {
|
|
empty_batch = false;
|
|
found++;
|
|
}
|
|
break;
|
|
case kTypeColumnFamilyDeletion:
|
|
case kTypeDeletion:
|
|
assert(wb->content_flags_.load(std::memory_order_relaxed) &
|
|
(ContentFlags::DEFERRED | ContentFlags::HAS_DELETE));
|
|
s = handler->DeleteCF(column_family, key);
|
|
if (LIKELY(s.ok())) {
|
|
empty_batch = false;
|
|
found++;
|
|
}
|
|
break;
|
|
case kTypeColumnFamilySingleDeletion:
|
|
case kTypeSingleDeletion:
|
|
assert(wb->content_flags_.load(std::memory_order_relaxed) &
|
|
(ContentFlags::DEFERRED | ContentFlags::HAS_SINGLE_DELETE));
|
|
s = handler->SingleDeleteCF(column_family, key);
|
|
if (LIKELY(s.ok())) {
|
|
empty_batch = false;
|
|
found++;
|
|
}
|
|
break;
|
|
case kTypeColumnFamilyRangeDeletion:
|
|
case kTypeRangeDeletion:
|
|
assert(wb->content_flags_.load(std::memory_order_relaxed) &
|
|
(ContentFlags::DEFERRED | ContentFlags::HAS_DELETE_RANGE));
|
|
s = handler->DeleteRangeCF(column_family, key, value);
|
|
if (LIKELY(s.ok())) {
|
|
empty_batch = false;
|
|
found++;
|
|
}
|
|
break;
|
|
case kTypeColumnFamilyMerge:
|
|
case kTypeMerge:
|
|
assert(wb->content_flags_.load(std::memory_order_relaxed) &
|
|
(ContentFlags::DEFERRED | ContentFlags::HAS_MERGE));
|
|
s = handler->MergeCF(column_family, key, value);
|
|
if (LIKELY(s.ok())) {
|
|
empty_batch = false;
|
|
found++;
|
|
}
|
|
break;
|
|
case kTypeColumnFamilyBlobIndex:
|
|
case kTypeBlobIndex:
|
|
assert(wb->content_flags_.load(std::memory_order_relaxed) &
|
|
(ContentFlags::DEFERRED | ContentFlags::HAS_BLOB_INDEX));
|
|
s = handler->PutBlobIndexCF(column_family, key, value);
|
|
if (LIKELY(s.ok())) {
|
|
found++;
|
|
}
|
|
break;
|
|
case kTypeLogData:
|
|
handler->LogData(blob);
|
|
// A batch might have nothing but LogData. It is still a batch.
|
|
empty_batch = false;
|
|
break;
|
|
case kTypeBeginPrepareXID:
|
|
assert(wb->content_flags_.load(std::memory_order_relaxed) &
|
|
(ContentFlags::DEFERRED | ContentFlags::HAS_BEGIN_PREPARE));
|
|
s = handler->MarkBeginPrepare();
|
|
assert(s.ok());
|
|
empty_batch = false;
|
|
if (!handler->WriteAfterCommit()) {
|
|
s = Status::NotSupported(
|
|
"WriteCommitted txn tag when write_after_commit_ is disabled (in "
|
|
"WritePrepared/WriteUnprepared mode). If it is not due to "
|
|
"corruption, the WAL must be emptied before changing the "
|
|
"WritePolicy.");
|
|
}
|
|
if (handler->WriteBeforePrepare()) {
|
|
s = Status::NotSupported(
|
|
"WriteCommitted txn tag when write_before_prepare_ is enabled "
|
|
"(in WriteUnprepared mode). If it is not due to corruption, the "
|
|
"WAL must be emptied before changing the WritePolicy.");
|
|
}
|
|
break;
|
|
case kTypeBeginPersistedPrepareXID:
|
|
assert(wb->content_flags_.load(std::memory_order_relaxed) &
|
|
(ContentFlags::DEFERRED | ContentFlags::HAS_BEGIN_PREPARE));
|
|
s = handler->MarkBeginPrepare();
|
|
assert(s.ok());
|
|
empty_batch = false;
|
|
if (handler->WriteAfterCommit()) {
|
|
s = Status::NotSupported(
|
|
"WritePrepared/WriteUnprepared txn tag when write_after_commit_ "
|
|
"is enabled (in default WriteCommitted mode). If it is not due "
|
|
"to corruption, the WAL must be emptied before changing the "
|
|
"WritePolicy.");
|
|
}
|
|
break;
|
|
case kTypeBeginUnprepareXID:
|
|
assert(wb->content_flags_.load(std::memory_order_relaxed) &
|
|
(ContentFlags::DEFERRED | ContentFlags::HAS_BEGIN_UNPREPARE));
|
|
s = handler->MarkBeginPrepare(true /* unprepared */);
|
|
assert(s.ok());
|
|
empty_batch = false;
|
|
if (handler->WriteAfterCommit()) {
|
|
s = Status::NotSupported(
|
|
"WriteUnprepared txn tag when write_after_commit_ is enabled (in "
|
|
"default WriteCommitted mode). If it is not due to corruption, "
|
|
"the WAL must be emptied before changing the WritePolicy.");
|
|
}
|
|
if (!handler->WriteBeforePrepare()) {
|
|
s = Status::NotSupported(
|
|
"WriteUnprepared txn tag when write_before_prepare_ is disabled "
|
|
"(in WriteCommitted/WritePrepared mode). If it is not due to "
|
|
"corruption, the WAL must be emptied before changing the "
|
|
"WritePolicy.");
|
|
}
|
|
break;
|
|
case kTypeEndPrepareXID:
|
|
assert(wb->content_flags_.load(std::memory_order_relaxed) &
|
|
(ContentFlags::DEFERRED | ContentFlags::HAS_END_PREPARE));
|
|
s = handler->MarkEndPrepare(xid);
|
|
assert(s.ok());
|
|
empty_batch = true;
|
|
break;
|
|
case kTypeCommitXID:
|
|
assert(wb->content_flags_.load(std::memory_order_relaxed) &
|
|
(ContentFlags::DEFERRED | ContentFlags::HAS_COMMIT));
|
|
s = handler->MarkCommit(xid);
|
|
assert(s.ok());
|
|
empty_batch = true;
|
|
break;
|
|
case kTypeCommitXIDAndTimestamp:
|
|
assert(wb->content_flags_.load(std::memory_order_relaxed) &
|
|
(ContentFlags::DEFERRED | ContentFlags::HAS_COMMIT));
|
|
// key stores the commit timestamp.
|
|
assert(!key.empty());
|
|
s = handler->MarkCommitWithTimestamp(xid, key);
|
|
if (LIKELY(s.ok())) {
|
|
empty_batch = true;
|
|
}
|
|
break;
|
|
case kTypeRollbackXID:
|
|
assert(wb->content_flags_.load(std::memory_order_relaxed) &
|
|
(ContentFlags::DEFERRED | ContentFlags::HAS_ROLLBACK));
|
|
s = handler->MarkRollback(xid);
|
|
assert(s.ok());
|
|
empty_batch = true;
|
|
break;
|
|
case kTypeNoop:
|
|
s = handler->MarkNoop(empty_batch);
|
|
assert(s.ok());
|
|
empty_batch = true;
|
|
break;
|
|
default:
|
|
return Status::Corruption("unknown WriteBatch tag");
|
|
}
|
|
}
|
|
if (!s.ok()) {
|
|
return s;
|
|
}
|
|
if (handler_continue && whole_batch &&
|
|
found != WriteBatchInternal::Count(wb)) {
|
|
return Status::Corruption("WriteBatch has wrong count");
|
|
} else {
|
|
return Status::OK();
|
|
}
|
|
}
|
|
|
|
bool WriteBatchInternal::IsLatestPersistentState(const WriteBatch* b) {
|
|
return b->is_latest_persistent_state_;
|
|
}
|
|
|
|
void WriteBatchInternal::SetAsLatestPersistentState(WriteBatch* b) {
|
|
b->is_latest_persistent_state_ = true;
|
|
}
|
|
|
|
uint32_t WriteBatchInternal::Count(const WriteBatch* b) {
|
|
return DecodeFixed32(b->rep_.data() + 8);
|
|
}
|
|
|
|
void WriteBatchInternal::SetCount(WriteBatch* b, uint32_t n) {
|
|
EncodeFixed32(&b->rep_[8], n);
|
|
}
|
|
|
|
SequenceNumber WriteBatchInternal::Sequence(const WriteBatch* b) {
|
|
return SequenceNumber(DecodeFixed64(b->rep_.data()));
|
|
}
|
|
|
|
void WriteBatchInternal::SetSequence(WriteBatch* b, SequenceNumber seq) {
|
|
EncodeFixed64(&b->rep_[0], seq);
|
|
}
|
|
|
|
size_t WriteBatchInternal::GetFirstOffset(WriteBatch* /*b*/) {
|
|
return WriteBatchInternal::kHeader;
|
|
}
|
|
|
|
Status WriteBatchInternal::Put(WriteBatch* b, uint32_t column_family_id,
|
|
const Slice& key, const Slice& value) {
|
|
if (key.size() > size_t{port::kMaxUint32}) {
|
|
return Status::InvalidArgument("key is too large");
|
|
}
|
|
if (value.size() > size_t{port::kMaxUint32}) {
|
|
return Status::InvalidArgument("value is too large");
|
|
}
|
|
|
|
LocalSavePoint save(b);
|
|
WriteBatchInternal::SetCount(b, WriteBatchInternal::Count(b) + 1);
|
|
if (column_family_id == 0) {
|
|
b->rep_.push_back(static_cast<char>(kTypeValue));
|
|
} else {
|
|
b->rep_.push_back(static_cast<char>(kTypeColumnFamilyValue));
|
|
PutVarint32(&b->rep_, column_family_id);
|
|
}
|
|
PutLengthPrefixedSlice(&b->rep_, key);
|
|
PutLengthPrefixedSlice(&b->rep_, value);
|
|
b->content_flags_.store(
|
|
b->content_flags_.load(std::memory_order_relaxed) | ContentFlags::HAS_PUT,
|
|
std::memory_order_relaxed);
|
|
if (b->prot_info_ != nullptr) {
|
|
// Technically the optype could've been `kTypeColumnFamilyValue` with the
|
|
// CF ID encoded in the `WriteBatch`. That distinction is unimportant
|
|
// however since we verify CF ID is correct, as well as all other fields
|
|
// (a missing/extra encoded CF ID would corrupt another field). It is
|
|
// convenient to consolidate on `kTypeValue` here as that is what will be
|
|
// inserted into memtable.
|
|
b->prot_info_->entries_.emplace_back(ProtectionInfo64()
|
|
.ProtectKVO(key, value, kTypeValue)
|
|
.ProtectC(column_family_id));
|
|
}
|
|
return save.commit();
|
|
}
|
|
|
|
Status WriteBatch::Put(ColumnFamilyHandle* column_family, const Slice& key,
|
|
const Slice& value) {
|
|
return WriteBatchInternal::Put(this, GetColumnFamilyID(column_family), key,
|
|
value);
|
|
}
|
|
|
|
Status WriteBatchInternal::CheckSlicePartsLength(const SliceParts& key,
|
|
const SliceParts& value) {
|
|
size_t total_key_bytes = 0;
|
|
for (int i = 0; i < key.num_parts; ++i) {
|
|
total_key_bytes += key.parts[i].size();
|
|
}
|
|
if (total_key_bytes >= size_t{port::kMaxUint32}) {
|
|
return Status::InvalidArgument("key is too large");
|
|
}
|
|
|
|
size_t total_value_bytes = 0;
|
|
for (int i = 0; i < value.num_parts; ++i) {
|
|
total_value_bytes += value.parts[i].size();
|
|
}
|
|
if (total_value_bytes >= size_t{port::kMaxUint32}) {
|
|
return Status::InvalidArgument("value is too large");
|
|
}
|
|
return Status::OK();
|
|
}
|
|
|
|
Status WriteBatchInternal::Put(WriteBatch* b, uint32_t column_family_id,
|
|
const SliceParts& key, const SliceParts& value) {
|
|
Status s = CheckSlicePartsLength(key, value);
|
|
if (!s.ok()) {
|
|
return s;
|
|
}
|
|
|
|
LocalSavePoint save(b);
|
|
WriteBatchInternal::SetCount(b, WriteBatchInternal::Count(b) + 1);
|
|
if (column_family_id == 0) {
|
|
b->rep_.push_back(static_cast<char>(kTypeValue));
|
|
} else {
|
|
b->rep_.push_back(static_cast<char>(kTypeColumnFamilyValue));
|
|
PutVarint32(&b->rep_, column_family_id);
|
|
}
|
|
PutLengthPrefixedSliceParts(&b->rep_, key);
|
|
PutLengthPrefixedSliceParts(&b->rep_, value);
|
|
b->content_flags_.store(
|
|
b->content_flags_.load(std::memory_order_relaxed) | ContentFlags::HAS_PUT,
|
|
std::memory_order_relaxed);
|
|
if (b->prot_info_ != nullptr) {
|
|
// See comment in first `WriteBatchInternal::Put()` overload concerning the
|
|
// `ValueType` argument passed to `ProtectKVO()`.
|
|
b->prot_info_->entries_.emplace_back(ProtectionInfo64()
|
|
.ProtectKVO(key, value, kTypeValue)
|
|
.ProtectC(column_family_id));
|
|
}
|
|
return save.commit();
|
|
}
|
|
|
|
Status WriteBatch::Put(ColumnFamilyHandle* column_family, const SliceParts& key,
|
|
const SliceParts& value) {
|
|
return WriteBatchInternal::Put(this, GetColumnFamilyID(column_family), key,
|
|
value);
|
|
}
|
|
|
|
Status WriteBatchInternal::InsertNoop(WriteBatch* b) {
|
|
b->rep_.push_back(static_cast<char>(kTypeNoop));
|
|
return Status::OK();
|
|
}
|
|
|
|
Status WriteBatchInternal::MarkEndPrepare(WriteBatch* b, const Slice& xid,
|
|
bool write_after_commit,
|
|
bool unprepared_batch) {
|
|
// a manually constructed batch can only contain one prepare section
|
|
assert(b->rep_[12] == static_cast<char>(kTypeNoop));
|
|
|
|
// all savepoints up to this point are cleared
|
|
if (b->save_points_ != nullptr) {
|
|
while (!b->save_points_->stack.empty()) {
|
|
b->save_points_->stack.pop();
|
|
}
|
|
}
|
|
|
|
// rewrite noop as begin marker
|
|
b->rep_[12] = static_cast<char>(
|
|
write_after_commit ? kTypeBeginPrepareXID
|
|
: (unprepared_batch ? kTypeBeginUnprepareXID
|
|
: kTypeBeginPersistedPrepareXID));
|
|
b->rep_.push_back(static_cast<char>(kTypeEndPrepareXID));
|
|
PutLengthPrefixedSlice(&b->rep_, xid);
|
|
b->content_flags_.store(b->content_flags_.load(std::memory_order_relaxed) |
|
|
ContentFlags::HAS_END_PREPARE |
|
|
ContentFlags::HAS_BEGIN_PREPARE,
|
|
std::memory_order_relaxed);
|
|
if (unprepared_batch) {
|
|
b->content_flags_.store(b->content_flags_.load(std::memory_order_relaxed) |
|
|
ContentFlags::HAS_BEGIN_UNPREPARE,
|
|
std::memory_order_relaxed);
|
|
}
|
|
return Status::OK();
|
|
}
|
|
|
|
Status WriteBatchInternal::MarkCommit(WriteBatch* b, const Slice& xid) {
|
|
b->rep_.push_back(static_cast<char>(kTypeCommitXID));
|
|
PutLengthPrefixedSlice(&b->rep_, xid);
|
|
b->content_flags_.store(b->content_flags_.load(std::memory_order_relaxed) |
|
|
ContentFlags::HAS_COMMIT,
|
|
std::memory_order_relaxed);
|
|
return Status::OK();
|
|
}
|
|
|
|
Status WriteBatchInternal::MarkCommitWithTimestamp(WriteBatch* b,
|
|
const Slice& xid,
|
|
const Slice& commit_ts) {
|
|
assert(!commit_ts.empty());
|
|
b->rep_.push_back(static_cast<char>(kTypeCommitXIDAndTimestamp));
|
|
PutLengthPrefixedSlice(&b->rep_, commit_ts);
|
|
PutLengthPrefixedSlice(&b->rep_, xid);
|
|
b->content_flags_.store(b->content_flags_.load(std::memory_order_relaxed) |
|
|
ContentFlags::HAS_COMMIT,
|
|
std::memory_order_relaxed);
|
|
return Status::OK();
|
|
}
|
|
|
|
Status WriteBatchInternal::MarkRollback(WriteBatch* b, const Slice& xid) {
|
|
b->rep_.push_back(static_cast<char>(kTypeRollbackXID));
|
|
PutLengthPrefixedSlice(&b->rep_, xid);
|
|
b->content_flags_.store(b->content_flags_.load(std::memory_order_relaxed) |
|
|
ContentFlags::HAS_ROLLBACK,
|
|
std::memory_order_relaxed);
|
|
return Status::OK();
|
|
}
|
|
|
|
Status WriteBatchInternal::Delete(WriteBatch* b, uint32_t column_family_id,
|
|
const Slice& key) {
|
|
LocalSavePoint save(b);
|
|
WriteBatchInternal::SetCount(b, WriteBatchInternal::Count(b) + 1);
|
|
if (column_family_id == 0) {
|
|
b->rep_.push_back(static_cast<char>(kTypeDeletion));
|
|
} else {
|
|
b->rep_.push_back(static_cast<char>(kTypeColumnFamilyDeletion));
|
|
PutVarint32(&b->rep_, column_family_id);
|
|
}
|
|
PutLengthPrefixedSlice(&b->rep_, key);
|
|
b->content_flags_.store(b->content_flags_.load(std::memory_order_relaxed) |
|
|
ContentFlags::HAS_DELETE,
|
|
std::memory_order_relaxed);
|
|
if (b->prot_info_ != nullptr) {
|
|
// See comment in first `WriteBatchInternal::Put()` overload concerning the
|
|
// `ValueType` argument passed to `ProtectKVO()`.
|
|
b->prot_info_->entries_.emplace_back(
|
|
ProtectionInfo64()
|
|
.ProtectKVO(key, "" /* value */, kTypeDeletion)
|
|
.ProtectC(column_family_id));
|
|
}
|
|
return save.commit();
|
|
}
|
|
|
|
Status WriteBatch::Delete(ColumnFamilyHandle* column_family, const Slice& key) {
|
|
return WriteBatchInternal::Delete(this, GetColumnFamilyID(column_family),
|
|
key);
|
|
}
|
|
|
|
Status WriteBatchInternal::Delete(WriteBatch* b, uint32_t column_family_id,
|
|
const SliceParts& key) {
|
|
LocalSavePoint save(b);
|
|
WriteBatchInternal::SetCount(b, WriteBatchInternal::Count(b) + 1);
|
|
if (column_family_id == 0) {
|
|
b->rep_.push_back(static_cast<char>(kTypeDeletion));
|
|
} else {
|
|
b->rep_.push_back(static_cast<char>(kTypeColumnFamilyDeletion));
|
|
PutVarint32(&b->rep_, column_family_id);
|
|
}
|
|
PutLengthPrefixedSliceParts(&b->rep_, key);
|
|
b->content_flags_.store(b->content_flags_.load(std::memory_order_relaxed) |
|
|
ContentFlags::HAS_DELETE,
|
|
std::memory_order_relaxed);
|
|
if (b->prot_info_ != nullptr) {
|
|
// See comment in first `WriteBatchInternal::Put()` overload concerning the
|
|
// `ValueType` argument passed to `ProtectKVO()`.
|
|
b->prot_info_->entries_.emplace_back(
|
|
ProtectionInfo64()
|
|
.ProtectKVO(key,
|
|
SliceParts(nullptr /* _parts */, 0 /* _num_parts */),
|
|
kTypeDeletion)
|
|
.ProtectC(column_family_id));
|
|
}
|
|
return save.commit();
|
|
}
|
|
|
|
Status WriteBatch::Delete(ColumnFamilyHandle* column_family,
|
|
const SliceParts& key) {
|
|
return WriteBatchInternal::Delete(this, GetColumnFamilyID(column_family),
|
|
key);
|
|
}
|
|
|
|
Status WriteBatchInternal::SingleDelete(WriteBatch* b,
|
|
uint32_t column_family_id,
|
|
const Slice& key) {
|
|
LocalSavePoint save(b);
|
|
WriteBatchInternal::SetCount(b, WriteBatchInternal::Count(b) + 1);
|
|
if (column_family_id == 0) {
|
|
b->rep_.push_back(static_cast<char>(kTypeSingleDeletion));
|
|
} else {
|
|
b->rep_.push_back(static_cast<char>(kTypeColumnFamilySingleDeletion));
|
|
PutVarint32(&b->rep_, column_family_id);
|
|
}
|
|
PutLengthPrefixedSlice(&b->rep_, key);
|
|
b->content_flags_.store(b->content_flags_.load(std::memory_order_relaxed) |
|
|
ContentFlags::HAS_SINGLE_DELETE,
|
|
std::memory_order_relaxed);
|
|
if (b->prot_info_ != nullptr) {
|
|
// See comment in first `WriteBatchInternal::Put()` overload concerning the
|
|
// `ValueType` argument passed to `ProtectKVO()`.
|
|
b->prot_info_->entries_.emplace_back(
|
|
ProtectionInfo64()
|
|
.ProtectKVO(key, "" /* value */, kTypeSingleDeletion)
|
|
.ProtectC(column_family_id));
|
|
}
|
|
return save.commit();
|
|
}
|
|
|
|
Status WriteBatch::SingleDelete(ColumnFamilyHandle* column_family,
|
|
const Slice& key) {
|
|
return WriteBatchInternal::SingleDelete(
|
|
this, GetColumnFamilyID(column_family), key);
|
|
}
|
|
|
|
Status WriteBatchInternal::SingleDelete(WriteBatch* b,
|
|
uint32_t column_family_id,
|
|
const SliceParts& key) {
|
|
LocalSavePoint save(b);
|
|
WriteBatchInternal::SetCount(b, WriteBatchInternal::Count(b) + 1);
|
|
if (column_family_id == 0) {
|
|
b->rep_.push_back(static_cast<char>(kTypeSingleDeletion));
|
|
} else {
|
|
b->rep_.push_back(static_cast<char>(kTypeColumnFamilySingleDeletion));
|
|
PutVarint32(&b->rep_, column_family_id);
|
|
}
|
|
PutLengthPrefixedSliceParts(&b->rep_, key);
|
|
b->content_flags_.store(b->content_flags_.load(std::memory_order_relaxed) |
|
|
ContentFlags::HAS_SINGLE_DELETE,
|
|
std::memory_order_relaxed);
|
|
if (b->prot_info_ != nullptr) {
|
|
// See comment in first `WriteBatchInternal::Put()` overload concerning the
|
|
// `ValueType` argument passed to `ProtectKVO()`.
|
|
b->prot_info_->entries_.emplace_back(
|
|
ProtectionInfo64()
|
|
.ProtectKVO(key,
|
|
SliceParts(nullptr /* _parts */,
|
|
0 /* _num_parts */) /* value */,
|
|
kTypeSingleDeletion)
|
|
.ProtectC(column_family_id));
|
|
}
|
|
return save.commit();
|
|
}
|
|
|
|
Status WriteBatch::SingleDelete(ColumnFamilyHandle* column_family,
|
|
const SliceParts& key) {
|
|
return WriteBatchInternal::SingleDelete(
|
|
this, GetColumnFamilyID(column_family), key);
|
|
}
|
|
|
|
Status WriteBatchInternal::DeleteRange(WriteBatch* b, uint32_t column_family_id,
|
|
const Slice& begin_key,
|
|
const Slice& end_key) {
|
|
LocalSavePoint save(b);
|
|
WriteBatchInternal::SetCount(b, WriteBatchInternal::Count(b) + 1);
|
|
if (column_family_id == 0) {
|
|
b->rep_.push_back(static_cast<char>(kTypeRangeDeletion));
|
|
} else {
|
|
b->rep_.push_back(static_cast<char>(kTypeColumnFamilyRangeDeletion));
|
|
PutVarint32(&b->rep_, column_family_id);
|
|
}
|
|
PutLengthPrefixedSlice(&b->rep_, begin_key);
|
|
PutLengthPrefixedSlice(&b->rep_, end_key);
|
|
b->content_flags_.store(b->content_flags_.load(std::memory_order_relaxed) |
|
|
ContentFlags::HAS_DELETE_RANGE,
|
|
std::memory_order_relaxed);
|
|
if (b->prot_info_ != nullptr) {
|
|
// See comment in first `WriteBatchInternal::Put()` overload concerning the
|
|
// `ValueType` argument passed to `ProtectKVO()`.
|
|
// In `DeleteRange()`, the end key is treated as the value.
|
|
b->prot_info_->entries_.emplace_back(
|
|
ProtectionInfo64()
|
|
.ProtectKVO(begin_key, end_key, kTypeRangeDeletion)
|
|
.ProtectC(column_family_id));
|
|
}
|
|
return save.commit();
|
|
}
|
|
|
|
Status WriteBatch::DeleteRange(ColumnFamilyHandle* column_family,
|
|
const Slice& begin_key, const Slice& end_key) {
|
|
return WriteBatchInternal::DeleteRange(this, GetColumnFamilyID(column_family),
|
|
begin_key, end_key);
|
|
}
|
|
|
|
Status WriteBatchInternal::DeleteRange(WriteBatch* b, uint32_t column_family_id,
|
|
const SliceParts& begin_key,
|
|
const SliceParts& end_key) {
|
|
LocalSavePoint save(b);
|
|
WriteBatchInternal::SetCount(b, WriteBatchInternal::Count(b) + 1);
|
|
if (column_family_id == 0) {
|
|
b->rep_.push_back(static_cast<char>(kTypeRangeDeletion));
|
|
} else {
|
|
b->rep_.push_back(static_cast<char>(kTypeColumnFamilyRangeDeletion));
|
|
PutVarint32(&b->rep_, column_family_id);
|
|
}
|
|
PutLengthPrefixedSliceParts(&b->rep_, begin_key);
|
|
PutLengthPrefixedSliceParts(&b->rep_, end_key);
|
|
b->content_flags_.store(b->content_flags_.load(std::memory_order_relaxed) |
|
|
ContentFlags::HAS_DELETE_RANGE,
|
|
std::memory_order_relaxed);
|
|
if (b->prot_info_ != nullptr) {
|
|
// See comment in first `WriteBatchInternal::Put()` overload concerning the
|
|
// `ValueType` argument passed to `ProtectKVO()`.
|
|
// In `DeleteRange()`, the end key is treated as the value.
|
|
b->prot_info_->entries_.emplace_back(
|
|
ProtectionInfo64()
|
|
.ProtectKVO(begin_key, end_key, kTypeRangeDeletion)
|
|
.ProtectC(column_family_id));
|
|
}
|
|
return save.commit();
|
|
}
|
|
|
|
Status WriteBatch::DeleteRange(ColumnFamilyHandle* column_family,
|
|
const SliceParts& begin_key,
|
|
const SliceParts& end_key) {
|
|
return WriteBatchInternal::DeleteRange(this, GetColumnFamilyID(column_family),
|
|
begin_key, end_key);
|
|
}
|
|
|
|
Status WriteBatchInternal::Merge(WriteBatch* b, uint32_t column_family_id,
|
|
const Slice& key, const Slice& value) {
|
|
if (key.size() > size_t{port::kMaxUint32}) {
|
|
return Status::InvalidArgument("key is too large");
|
|
}
|
|
if (value.size() > size_t{port::kMaxUint32}) {
|
|
return Status::InvalidArgument("value is too large");
|
|
}
|
|
|
|
LocalSavePoint save(b);
|
|
WriteBatchInternal::SetCount(b, WriteBatchInternal::Count(b) + 1);
|
|
if (column_family_id == 0) {
|
|
b->rep_.push_back(static_cast<char>(kTypeMerge));
|
|
} else {
|
|
b->rep_.push_back(static_cast<char>(kTypeColumnFamilyMerge));
|
|
PutVarint32(&b->rep_, column_family_id);
|
|
}
|
|
PutLengthPrefixedSlice(&b->rep_, key);
|
|
PutLengthPrefixedSlice(&b->rep_, value);
|
|
b->content_flags_.store(b->content_flags_.load(std::memory_order_relaxed) |
|
|
ContentFlags::HAS_MERGE,
|
|
std::memory_order_relaxed);
|
|
if (b->prot_info_ != nullptr) {
|
|
// See comment in first `WriteBatchInternal::Put()` overload concerning the
|
|
// `ValueType` argument passed to `ProtectKVO()`.
|
|
b->prot_info_->entries_.emplace_back(ProtectionInfo64()
|
|
.ProtectKVO(key, value, kTypeMerge)
|
|
.ProtectC(column_family_id));
|
|
}
|
|
return save.commit();
|
|
}
|
|
|
|
Status WriteBatch::Merge(ColumnFamilyHandle* column_family, const Slice& key,
|
|
const Slice& value) {
|
|
return WriteBatchInternal::Merge(this, GetColumnFamilyID(column_family), key,
|
|
value);
|
|
}
|
|
|
|
Status WriteBatchInternal::Merge(WriteBatch* b, uint32_t column_family_id,
|
|
const SliceParts& key,
|
|
const SliceParts& value) {
|
|
Status s = CheckSlicePartsLength(key, value);
|
|
if (!s.ok()) {
|
|
return s;
|
|
}
|
|
|
|
LocalSavePoint save(b);
|
|
WriteBatchInternal::SetCount(b, WriteBatchInternal::Count(b) + 1);
|
|
if (column_family_id == 0) {
|
|
b->rep_.push_back(static_cast<char>(kTypeMerge));
|
|
} else {
|
|
b->rep_.push_back(static_cast<char>(kTypeColumnFamilyMerge));
|
|
PutVarint32(&b->rep_, column_family_id);
|
|
}
|
|
PutLengthPrefixedSliceParts(&b->rep_, key);
|
|
PutLengthPrefixedSliceParts(&b->rep_, value);
|
|
b->content_flags_.store(b->content_flags_.load(std::memory_order_relaxed) |
|
|
ContentFlags::HAS_MERGE,
|
|
std::memory_order_relaxed);
|
|
if (b->prot_info_ != nullptr) {
|
|
// See comment in first `WriteBatchInternal::Put()` overload concerning the
|
|
// `ValueType` argument passed to `ProtectKVO()`.
|
|
b->prot_info_->entries_.emplace_back(ProtectionInfo64()
|
|
.ProtectKVO(key, value, kTypeMerge)
|
|
.ProtectC(column_family_id));
|
|
}
|
|
return save.commit();
|
|
}
|
|
|
|
Status WriteBatch::Merge(ColumnFamilyHandle* column_family,
|
|
const SliceParts& key, const SliceParts& value) {
|
|
return WriteBatchInternal::Merge(this, GetColumnFamilyID(column_family), key,
|
|
value);
|
|
}
|
|
|
|
Status WriteBatchInternal::PutBlobIndex(WriteBatch* b,
|
|
uint32_t column_family_id,
|
|
const Slice& key, const Slice& value) {
|
|
LocalSavePoint save(b);
|
|
WriteBatchInternal::SetCount(b, WriteBatchInternal::Count(b) + 1);
|
|
if (column_family_id == 0) {
|
|
b->rep_.push_back(static_cast<char>(kTypeBlobIndex));
|
|
} else {
|
|
b->rep_.push_back(static_cast<char>(kTypeColumnFamilyBlobIndex));
|
|
PutVarint32(&b->rep_, column_family_id);
|
|
}
|
|
PutLengthPrefixedSlice(&b->rep_, key);
|
|
PutLengthPrefixedSlice(&b->rep_, value);
|
|
b->content_flags_.store(b->content_flags_.load(std::memory_order_relaxed) |
|
|
ContentFlags::HAS_BLOB_INDEX,
|
|
std::memory_order_relaxed);
|
|
if (b->prot_info_ != nullptr) {
|
|
// See comment in first `WriteBatchInternal::Put()` overload concerning the
|
|
// `ValueType` argument passed to `ProtectKVO()`.
|
|
b->prot_info_->entries_.emplace_back(
|
|
ProtectionInfo64()
|
|
.ProtectKVO(key, value, kTypeBlobIndex)
|
|
.ProtectC(column_family_id));
|
|
}
|
|
return save.commit();
|
|
}
|
|
|
|
Status WriteBatch::PutLogData(const Slice& blob) {
|
|
LocalSavePoint save(this);
|
|
rep_.push_back(static_cast<char>(kTypeLogData));
|
|
PutLengthPrefixedSlice(&rep_, blob);
|
|
return save.commit();
|
|
}
|
|
|
|
void WriteBatch::SetSavePoint() {
|
|
if (save_points_ == nullptr) {
|
|
save_points_.reset(new SavePoints());
|
|
}
|
|
// Record length and count of current batch of writes.
|
|
save_points_->stack.push(SavePoint(
|
|
GetDataSize(), Count(), content_flags_.load(std::memory_order_relaxed)));
|
|
}
|
|
|
|
Status WriteBatch::RollbackToSavePoint() {
|
|
if (save_points_ == nullptr || save_points_->stack.size() == 0) {
|
|
return Status::NotFound();
|
|
}
|
|
|
|
// Pop the most recent savepoint off the stack
|
|
SavePoint savepoint = save_points_->stack.top();
|
|
save_points_->stack.pop();
|
|
|
|
assert(savepoint.size <= rep_.size());
|
|
assert(static_cast<uint32_t>(savepoint.count) <= Count());
|
|
|
|
if (savepoint.size == rep_.size()) {
|
|
// No changes to rollback
|
|
} else if (savepoint.size == 0) {
|
|
// Rollback everything
|
|
Clear();
|
|
} else {
|
|
rep_.resize(savepoint.size);
|
|
if (prot_info_ != nullptr) {
|
|
prot_info_->entries_.resize(savepoint.count);
|
|
}
|
|
WriteBatchInternal::SetCount(this, savepoint.count);
|
|
content_flags_.store(savepoint.content_flags, std::memory_order_relaxed);
|
|
}
|
|
|
|
return Status::OK();
|
|
}
|
|
|
|
Status WriteBatch::PopSavePoint() {
|
|
if (save_points_ == nullptr || save_points_->stack.size() == 0) {
|
|
return Status::NotFound();
|
|
}
|
|
|
|
// Pop the most recent savepoint off the stack
|
|
save_points_->stack.pop();
|
|
|
|
return Status::OK();
|
|
}
|
|
|
|
class MemTableInserter : public WriteBatch::Handler {
|
|
|
|
SequenceNumber sequence_;
|
|
ColumnFamilyMemTables* const cf_mems_;
|
|
FlushScheduler* const flush_scheduler_;
|
|
TrimHistoryScheduler* const trim_history_scheduler_;
|
|
const bool ignore_missing_column_families_;
|
|
const uint64_t recovering_log_number_;
|
|
// log number that all Memtables inserted into should reference
|
|
uint64_t log_number_ref_;
|
|
DBImpl* db_;
|
|
const bool concurrent_memtable_writes_;
|
|
bool post_info_created_;
|
|
const WriteBatch::ProtectionInfo* prot_info_;
|
|
size_t prot_info_idx_;
|
|
|
|
bool* has_valid_writes_;
|
|
// On some (!) platforms just default creating
|
|
// a map is too expensive in the Write() path as they
|
|
// cause memory allocations though unused.
|
|
// Make creation optional but do not incur
|
|
// std::unique_ptr additional allocation
|
|
using MemPostInfoMap = std::map<MemTable*, MemTablePostProcessInfo>;
|
|
using PostMapType = std::aligned_storage<sizeof(MemPostInfoMap)>::type;
|
|
PostMapType mem_post_info_map_;
|
|
// current recovered transaction we are rebuilding (recovery)
|
|
WriteBatch* rebuilding_trx_;
|
|
SequenceNumber rebuilding_trx_seq_;
|
|
// Increase seq number once per each write batch. Otherwise increase it once
|
|
// per key.
|
|
bool seq_per_batch_;
|
|
// Whether the memtable write will be done only after the commit
|
|
bool write_after_commit_;
|
|
// Whether memtable write can be done before prepare
|
|
bool write_before_prepare_;
|
|
// Whether this batch was unprepared or not
|
|
bool unprepared_batch_;
|
|
using DupDetector = std::aligned_storage<sizeof(DuplicateDetector)>::type;
|
|
DupDetector duplicate_detector_;
|
|
bool dup_dectector_on_;
|
|
|
|
bool hint_per_batch_;
|
|
bool hint_created_;
|
|
// Hints for this batch
|
|
using HintMap = std::unordered_map<MemTable*, void*>;
|
|
using HintMapType = std::aligned_storage<sizeof(HintMap)>::type;
|
|
HintMapType hint_;
|
|
|
|
HintMap& GetHintMap() {
|
|
assert(hint_per_batch_);
|
|
if (!hint_created_) {
|
|
new (&hint_) HintMap();
|
|
hint_created_ = true;
|
|
}
|
|
return *reinterpret_cast<HintMap*>(&hint_);
|
|
}
|
|
|
|
MemPostInfoMap& GetPostMap() {
|
|
assert(concurrent_memtable_writes_);
|
|
if(!post_info_created_) {
|
|
new (&mem_post_info_map_) MemPostInfoMap();
|
|
post_info_created_ = true;
|
|
}
|
|
return *reinterpret_cast<MemPostInfoMap*>(&mem_post_info_map_);
|
|
}
|
|
|
|
bool IsDuplicateKeySeq(uint32_t column_family_id, const Slice& key) {
|
|
assert(!write_after_commit_);
|
|
assert(rebuilding_trx_ != nullptr);
|
|
if (!dup_dectector_on_) {
|
|
new (&duplicate_detector_) DuplicateDetector(db_);
|
|
dup_dectector_on_ = true;
|
|
}
|
|
return reinterpret_cast<DuplicateDetector*>
|
|
(&duplicate_detector_)->IsDuplicateKeySeq(column_family_id, key, sequence_);
|
|
}
|
|
|
|
const ProtectionInfoKVOC64* NextProtectionInfo() {
|
|
const ProtectionInfoKVOC64* res = nullptr;
|
|
if (prot_info_ != nullptr) {
|
|
assert(prot_info_idx_ < prot_info_->entries_.size());
|
|
res = &prot_info_->entries_[prot_info_idx_];
|
|
++prot_info_idx_;
|
|
}
|
|
return res;
|
|
}
|
|
|
|
protected:
|
|
bool WriteBeforePrepare() const override { return write_before_prepare_; }
|
|
bool WriteAfterCommit() const override { return write_after_commit_; }
|
|
|
|
public:
|
|
// cf_mems should not be shared with concurrent inserters
|
|
MemTableInserter(SequenceNumber _sequence, ColumnFamilyMemTables* cf_mems,
|
|
FlushScheduler* flush_scheduler,
|
|
TrimHistoryScheduler* trim_history_scheduler,
|
|
bool ignore_missing_column_families,
|
|
uint64_t recovering_log_number, DB* db,
|
|
bool concurrent_memtable_writes,
|
|
const WriteBatch::ProtectionInfo* prot_info,
|
|
bool* has_valid_writes = nullptr, bool seq_per_batch = false,
|
|
bool batch_per_txn = true, bool hint_per_batch = false)
|
|
: sequence_(_sequence),
|
|
cf_mems_(cf_mems),
|
|
flush_scheduler_(flush_scheduler),
|
|
trim_history_scheduler_(trim_history_scheduler),
|
|
ignore_missing_column_families_(ignore_missing_column_families),
|
|
recovering_log_number_(recovering_log_number),
|
|
log_number_ref_(0),
|
|
db_(static_cast_with_check<DBImpl>(db)),
|
|
concurrent_memtable_writes_(concurrent_memtable_writes),
|
|
post_info_created_(false),
|
|
prot_info_(prot_info),
|
|
prot_info_idx_(0),
|
|
has_valid_writes_(has_valid_writes),
|
|
rebuilding_trx_(nullptr),
|
|
rebuilding_trx_seq_(0),
|
|
seq_per_batch_(seq_per_batch),
|
|
// Write after commit currently uses one seq per key (instead of per
|
|
// batch). So seq_per_batch being false indicates write_after_commit
|
|
// approach.
|
|
write_after_commit_(!seq_per_batch),
|
|
// WriteUnprepared can write WriteBatches per transaction, so
|
|
// batch_per_txn being false indicates write_before_prepare.
|
|
write_before_prepare_(!batch_per_txn),
|
|
unprepared_batch_(false),
|
|
duplicate_detector_(),
|
|
dup_dectector_on_(false),
|
|
hint_per_batch_(hint_per_batch),
|
|
hint_created_(false) {
|
|
assert(cf_mems_);
|
|
}
|
|
|
|
~MemTableInserter() override {
|
|
if (dup_dectector_on_) {
|
|
reinterpret_cast<DuplicateDetector*>
|
|
(&duplicate_detector_)->~DuplicateDetector();
|
|
}
|
|
if (post_info_created_) {
|
|
reinterpret_cast<MemPostInfoMap*>
|
|
(&mem_post_info_map_)->~MemPostInfoMap();
|
|
}
|
|
if (hint_created_) {
|
|
for (auto iter : GetHintMap()) {
|
|
delete[] reinterpret_cast<char*>(iter.second);
|
|
}
|
|
reinterpret_cast<HintMap*>(&hint_)->~HintMap();
|
|
}
|
|
delete rebuilding_trx_;
|
|
}
|
|
|
|
MemTableInserter(const MemTableInserter&) = delete;
|
|
MemTableInserter& operator=(const MemTableInserter&) = delete;
|
|
|
|
// The batch seq is regularly restarted; In normal mode it is set when
|
|
// MemTableInserter is constructed in the write thread and in recovery mode it
|
|
// is set when a batch, which is tagged with seq, is read from the WAL.
|
|
// Within a sequenced batch, which could be a merge of multiple batches, we
|
|
// have two policies to advance the seq: i) seq_per_key (default) and ii)
|
|
// seq_per_batch. To implement the latter we need to mark the boundary between
|
|
// the individual batches. The approach is this: 1) Use the terminating
|
|
// markers to indicate the boundary (kTypeEndPrepareXID, kTypeCommitXID,
|
|
// kTypeRollbackXID) 2) Terminate a batch with kTypeNoop in the absence of a
|
|
// natural boundary marker.
|
|
void MaybeAdvanceSeq(bool batch_boundry = false) {
|
|
if (batch_boundry == seq_per_batch_) {
|
|
sequence_++;
|
|
}
|
|
}
|
|
|
|
void set_log_number_ref(uint64_t log) { log_number_ref_ = log; }
|
|
void set_prot_info(const WriteBatch::ProtectionInfo* prot_info) {
|
|
prot_info_ = prot_info;
|
|
prot_info_idx_ = 0;
|
|
}
|
|
|
|
SequenceNumber sequence() const { return sequence_; }
|
|
|
|
void PostProcess() {
|
|
assert(concurrent_memtable_writes_);
|
|
// If post info was not created there is nothing
|
|
// to process and no need to create on demand
|
|
if(post_info_created_) {
|
|
for (auto& pair : GetPostMap()) {
|
|
pair.first->BatchPostProcess(pair.second);
|
|
}
|
|
}
|
|
}
|
|
|
|
bool SeekToColumnFamily(uint32_t column_family_id, Status* s) {
|
|
// If we are in a concurrent mode, it is the caller's responsibility
|
|
// to clone the original ColumnFamilyMemTables so that each thread
|
|
// has its own instance. Otherwise, it must be guaranteed that there
|
|
// is no concurrent access
|
|
bool found = cf_mems_->Seek(column_family_id);
|
|
if (!found) {
|
|
if (ignore_missing_column_families_) {
|
|
*s = Status::OK();
|
|
} else {
|
|
*s = Status::InvalidArgument(
|
|
"Invalid column family specified in write batch");
|
|
}
|
|
return false;
|
|
}
|
|
if (recovering_log_number_ != 0 &&
|
|
recovering_log_number_ < cf_mems_->GetLogNumber()) {
|
|
// This is true only in recovery environment (recovering_log_number_ is
|
|
// always 0 in
|
|
// non-recovery, regular write code-path)
|
|
// * If recovering_log_number_ < cf_mems_->GetLogNumber(), this means that
|
|
// column
|
|
// family already contains updates from this log. We can't apply updates
|
|
// twice because of update-in-place or merge workloads -- ignore the
|
|
// update
|
|
*s = Status::OK();
|
|
return false;
|
|
}
|
|
|
|
if (has_valid_writes_ != nullptr) {
|
|
*has_valid_writes_ = true;
|
|
}
|
|
|
|
if (log_number_ref_ > 0) {
|
|
cf_mems_->GetMemTable()->RefLogContainingPrepSection(log_number_ref_);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
Status PutCFImpl(uint32_t column_family_id, const Slice& key,
|
|
const Slice& value, ValueType value_type,
|
|
const ProtectionInfoKVOS64* kv_prot_info) {
|
|
// optimize for non-recovery mode
|
|
if (UNLIKELY(write_after_commit_ && rebuilding_trx_ != nullptr)) {
|
|
// TODO(ajkr): propagate `ProtectionInfoKVOS64`.
|
|
return WriteBatchInternal::Put(rebuilding_trx_, column_family_id, key,
|
|
value);
|
|
// else insert the values to the memtable right away
|
|
}
|
|
|
|
Status ret_status;
|
|
if (UNLIKELY(!SeekToColumnFamily(column_family_id, &ret_status))) {
|
|
if (ret_status.ok() && rebuilding_trx_ != nullptr) {
|
|
assert(!write_after_commit_);
|
|
// The CF is probably flushed and hence no need for insert but we still
|
|
// need to keep track of the keys for upcoming rollback/commit.
|
|
// TODO(ajkr): propagate `ProtectionInfoKVOS64`.
|
|
ret_status = WriteBatchInternal::Put(rebuilding_trx_, column_family_id,
|
|
key, value);
|
|
if (ret_status.ok()) {
|
|
MaybeAdvanceSeq(IsDuplicateKeySeq(column_family_id, key));
|
|
}
|
|
} else if (ret_status.ok()) {
|
|
MaybeAdvanceSeq(false /* batch_boundary */);
|
|
}
|
|
return ret_status;
|
|
}
|
|
assert(ret_status.ok());
|
|
|
|
MemTable* mem = cf_mems_->GetMemTable();
|
|
auto* moptions = mem->GetImmutableMemTableOptions();
|
|
// inplace_update_support is inconsistent with snapshots, and therefore with
|
|
// any kind of transactions including the ones that use seq_per_batch
|
|
assert(!seq_per_batch_ || !moptions->inplace_update_support);
|
|
if (!moptions->inplace_update_support) {
|
|
ret_status =
|
|
mem->Add(sequence_, value_type, key, value, kv_prot_info,
|
|
concurrent_memtable_writes_, get_post_process_info(mem),
|
|
hint_per_batch_ ? &GetHintMap()[mem] : nullptr);
|
|
} else if (moptions->inplace_callback == nullptr) {
|
|
assert(!concurrent_memtable_writes_);
|
|
ret_status = mem->Update(sequence_, key, value, kv_prot_info);
|
|
} else {
|
|
assert(!concurrent_memtable_writes_);
|
|
ret_status = mem->UpdateCallback(sequence_, key, value, kv_prot_info);
|
|
if (ret_status.IsNotFound()) {
|
|
// key not found in memtable. Do sst get, update, add
|
|
SnapshotImpl read_from_snapshot;
|
|
read_from_snapshot.number_ = sequence_;
|
|
ReadOptions ropts;
|
|
// it's going to be overwritten for sure, so no point caching data block
|
|
// containing the old version
|
|
ropts.fill_cache = false;
|
|
ropts.snapshot = &read_from_snapshot;
|
|
|
|
std::string prev_value;
|
|
std::string merged_value;
|
|
|
|
auto cf_handle = cf_mems_->GetColumnFamilyHandle();
|
|
Status get_status = Status::NotSupported();
|
|
if (db_ != nullptr && recovering_log_number_ == 0) {
|
|
if (cf_handle == nullptr) {
|
|
cf_handle = db_->DefaultColumnFamily();
|
|
}
|
|
get_status = db_->Get(ropts, cf_handle, key, &prev_value);
|
|
}
|
|
// Intentionally overwrites the `NotFound` in `ret_status`.
|
|
if (!get_status.ok() && !get_status.IsNotFound()) {
|
|
ret_status = get_status;
|
|
} else {
|
|
ret_status = Status::OK();
|
|
}
|
|
if (ret_status.ok()) {
|
|
UpdateStatus update_status;
|
|
char* prev_buffer = const_cast<char*>(prev_value.c_str());
|
|
uint32_t prev_size = static_cast<uint32_t>(prev_value.size());
|
|
if (get_status.ok()) {
|
|
update_status = moptions->inplace_callback(prev_buffer, &prev_size,
|
|
value, &merged_value);
|
|
} else {
|
|
update_status = moptions->inplace_callback(
|
|
nullptr /* existing_value */, nullptr /* existing_value_size */,
|
|
value, &merged_value);
|
|
}
|
|
if (update_status == UpdateStatus::UPDATED_INPLACE) {
|
|
assert(get_status.ok());
|
|
if (kv_prot_info != nullptr) {
|
|
ProtectionInfoKVOS64 updated_kv_prot_info(*kv_prot_info);
|
|
updated_kv_prot_info.UpdateV(value,
|
|
Slice(prev_buffer, prev_size));
|
|
// prev_value is updated in-place with final value.
|
|
ret_status = mem->Add(sequence_, value_type, key,
|
|
Slice(prev_buffer, prev_size),
|
|
&updated_kv_prot_info);
|
|
} else {
|
|
ret_status = mem->Add(sequence_, value_type, key,
|
|
Slice(prev_buffer, prev_size),
|
|
nullptr /* kv_prot_info */);
|
|
}
|
|
if (ret_status.ok()) {
|
|
RecordTick(moptions->statistics, NUMBER_KEYS_WRITTEN);
|
|
}
|
|
} else if (update_status == UpdateStatus::UPDATED) {
|
|
if (kv_prot_info != nullptr) {
|
|
ProtectionInfoKVOS64 updated_kv_prot_info(*kv_prot_info);
|
|
updated_kv_prot_info.UpdateV(value, merged_value);
|
|
// merged_value contains the final value.
|
|
ret_status = mem->Add(sequence_, value_type, key,
|
|
Slice(merged_value), &updated_kv_prot_info);
|
|
} else {
|
|
// merged_value contains the final value.
|
|
ret_status =
|
|
mem->Add(sequence_, value_type, key, Slice(merged_value),
|
|
nullptr /* kv_prot_info */);
|
|
}
|
|
if (ret_status.ok()) {
|
|
RecordTick(moptions->statistics, NUMBER_KEYS_WRITTEN);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (UNLIKELY(ret_status.IsTryAgain())) {
|
|
assert(seq_per_batch_);
|
|
const bool kBatchBoundary = true;
|
|
MaybeAdvanceSeq(kBatchBoundary);
|
|
} else if (ret_status.ok()) {
|
|
MaybeAdvanceSeq();
|
|
CheckMemtableFull();
|
|
}
|
|
// optimize for non-recovery mode
|
|
// If `ret_status` is `TryAgain` then the next (successful) try will add
|
|
// the key to the rebuilding transaction object. If `ret_status` is
|
|
// another non-OK `Status`, then the `rebuilding_trx_` will be thrown
|
|
// away. So we only need to add to it when `ret_status.ok()`.
|
|
if (UNLIKELY(ret_status.ok() && rebuilding_trx_ != nullptr)) {
|
|
assert(!write_after_commit_);
|
|
// TODO(ajkr): propagate `ProtectionInfoKVOS64`.
|
|
ret_status = WriteBatchInternal::Put(rebuilding_trx_, column_family_id,
|
|
key, value);
|
|
}
|
|
return ret_status;
|
|
}
|
|
|
|
Status PutCF(uint32_t column_family_id, const Slice& key,
|
|
const Slice& value) override {
|
|
const auto* kv_prot_info = NextProtectionInfo();
|
|
if (kv_prot_info != nullptr) {
|
|
// Memtable needs seqno, doesn't need CF ID
|
|
auto mem_kv_prot_info =
|
|
kv_prot_info->StripC(column_family_id).ProtectS(sequence_);
|
|
return PutCFImpl(column_family_id, key, value, kTypeValue,
|
|
&mem_kv_prot_info);
|
|
}
|
|
return PutCFImpl(column_family_id, key, value, kTypeValue,
|
|
nullptr /* kv_prot_info */);
|
|
}
|
|
|
|
Status DeleteImpl(uint32_t /*column_family_id*/, const Slice& key,
|
|
const Slice& value, ValueType delete_type,
|
|
const ProtectionInfoKVOS64* kv_prot_info) {
|
|
Status ret_status;
|
|
MemTable* mem = cf_mems_->GetMemTable();
|
|
ret_status =
|
|
mem->Add(sequence_, delete_type, key, value, kv_prot_info,
|
|
concurrent_memtable_writes_, get_post_process_info(mem),
|
|
hint_per_batch_ ? &GetHintMap()[mem] : nullptr);
|
|
if (UNLIKELY(ret_status.IsTryAgain())) {
|
|
assert(seq_per_batch_);
|
|
const bool kBatchBoundary = true;
|
|
MaybeAdvanceSeq(kBatchBoundary);
|
|
} else if (ret_status.ok()) {
|
|
MaybeAdvanceSeq();
|
|
CheckMemtableFull();
|
|
}
|
|
return ret_status;
|
|
}
|
|
|
|
Status DeleteCF(uint32_t column_family_id, const Slice& key) override {
|
|
const auto* kv_prot_info = NextProtectionInfo();
|
|
// optimize for non-recovery mode
|
|
if (UNLIKELY(write_after_commit_ && rebuilding_trx_ != nullptr)) {
|
|
// TODO(ajkr): propagate `ProtectionInfoKVOS64`.
|
|
return WriteBatchInternal::Delete(rebuilding_trx_, column_family_id, key);
|
|
// else insert the values to the memtable right away
|
|
}
|
|
|
|
Status ret_status;
|
|
if (UNLIKELY(!SeekToColumnFamily(column_family_id, &ret_status))) {
|
|
if (ret_status.ok() && rebuilding_trx_ != nullptr) {
|
|
assert(!write_after_commit_);
|
|
// The CF is probably flushed and hence no need for insert but we still
|
|
// need to keep track of the keys for upcoming rollback/commit.
|
|
// TODO(ajkr): propagate `ProtectionInfoKVOS64`.
|
|
ret_status =
|
|
WriteBatchInternal::Delete(rebuilding_trx_, column_family_id, key);
|
|
if (ret_status.ok()) {
|
|
MaybeAdvanceSeq(IsDuplicateKeySeq(column_family_id, key));
|
|
}
|
|
} else if (ret_status.ok()) {
|
|
MaybeAdvanceSeq(false /* batch_boundary */);
|
|
}
|
|
return ret_status;
|
|
}
|
|
|
|
ColumnFamilyData* cfd = cf_mems_->current();
|
|
assert(!cfd || cfd->user_comparator());
|
|
const size_t ts_sz = (cfd && cfd->user_comparator())
|
|
? cfd->user_comparator()->timestamp_size()
|
|
: 0;
|
|
const ValueType delete_type =
|
|
(0 == ts_sz) ? kTypeDeletion : kTypeDeletionWithTimestamp;
|
|
if (kv_prot_info != nullptr) {
|
|
auto mem_kv_prot_info =
|
|
kv_prot_info->StripC(column_family_id).ProtectS(sequence_);
|
|
mem_kv_prot_info.UpdateO(kTypeDeletion, delete_type);
|
|
ret_status = DeleteImpl(column_family_id, key, Slice(), delete_type,
|
|
&mem_kv_prot_info);
|
|
} else {
|
|
ret_status = DeleteImpl(column_family_id, key, Slice(), delete_type,
|
|
nullptr /* kv_prot_info */);
|
|
}
|
|
// optimize for non-recovery mode
|
|
// If `ret_status` is `TryAgain` then the next (successful) try will add
|
|
// the key to the rebuilding transaction object. If `ret_status` is
|
|
// another non-OK `Status`, then the `rebuilding_trx_` will be thrown
|
|
// away. So we only need to add to it when `ret_status.ok()`.
|
|
if (UNLIKELY(ret_status.ok() && rebuilding_trx_ != nullptr)) {
|
|
assert(!write_after_commit_);
|
|
// TODO(ajkr): propagate `ProtectionInfoKVOS64`.
|
|
ret_status =
|
|
WriteBatchInternal::Delete(rebuilding_trx_, column_family_id, key);
|
|
}
|
|
return ret_status;
|
|
}
|
|
|
|
Status SingleDeleteCF(uint32_t column_family_id, const Slice& key) override {
|
|
const auto* kv_prot_info = NextProtectionInfo();
|
|
// optimize for non-recovery mode
|
|
if (UNLIKELY(write_after_commit_ && rebuilding_trx_ != nullptr)) {
|
|
// TODO(ajkr): propagate `ProtectionInfoKVOS64`.
|
|
return WriteBatchInternal::SingleDelete(rebuilding_trx_, column_family_id,
|
|
key);
|
|
// else insert the values to the memtable right away
|
|
}
|
|
|
|
Status ret_status;
|
|
if (UNLIKELY(!SeekToColumnFamily(column_family_id, &ret_status))) {
|
|
if (ret_status.ok() && rebuilding_trx_ != nullptr) {
|
|
assert(!write_after_commit_);
|
|
// The CF is probably flushed and hence no need for insert but we still
|
|
// need to keep track of the keys for upcoming rollback/commit.
|
|
// TODO(ajkr): propagate `ProtectionInfoKVOS64`.
|
|
ret_status = WriteBatchInternal::SingleDelete(rebuilding_trx_,
|
|
column_family_id, key);
|
|
if (ret_status.ok()) {
|
|
MaybeAdvanceSeq(IsDuplicateKeySeq(column_family_id, key));
|
|
}
|
|
} else if (ret_status.ok()) {
|
|
MaybeAdvanceSeq(false /* batch_boundary */);
|
|
}
|
|
return ret_status;
|
|
}
|
|
assert(ret_status.ok());
|
|
|
|
if (kv_prot_info != nullptr) {
|
|
auto mem_kv_prot_info =
|
|
kv_prot_info->StripC(column_family_id).ProtectS(sequence_);
|
|
ret_status = DeleteImpl(column_family_id, key, Slice(),
|
|
kTypeSingleDeletion, &mem_kv_prot_info);
|
|
} else {
|
|
ret_status = DeleteImpl(column_family_id, key, Slice(),
|
|
kTypeSingleDeletion, nullptr /* kv_prot_info */);
|
|
}
|
|
// optimize for non-recovery mode
|
|
// If `ret_status` is `TryAgain` then the next (successful) try will add
|
|
// the key to the rebuilding transaction object. If `ret_status` is
|
|
// another non-OK `Status`, then the `rebuilding_trx_` will be thrown
|
|
// away. So we only need to add to it when `ret_status.ok()`.
|
|
if (UNLIKELY(ret_status.ok() && rebuilding_trx_ != nullptr)) {
|
|
assert(!write_after_commit_);
|
|
// TODO(ajkr): propagate `ProtectionInfoKVOS64`.
|
|
ret_status = WriteBatchInternal::SingleDelete(rebuilding_trx_,
|
|
column_family_id, key);
|
|
}
|
|
return ret_status;
|
|
}
|
|
|
|
Status DeleteRangeCF(uint32_t column_family_id, const Slice& begin_key,
|
|
const Slice& end_key) override {
|
|
const auto* kv_prot_info = NextProtectionInfo();
|
|
// optimize for non-recovery mode
|
|
if (UNLIKELY(write_after_commit_ && rebuilding_trx_ != nullptr)) {
|
|
// TODO(ajkr): propagate `ProtectionInfoKVOS64`.
|
|
return WriteBatchInternal::DeleteRange(rebuilding_trx_, column_family_id,
|
|
begin_key, end_key);
|
|
// else insert the values to the memtable right away
|
|
}
|
|
|
|
Status ret_status;
|
|
if (UNLIKELY(!SeekToColumnFamily(column_family_id, &ret_status))) {
|
|
if (ret_status.ok() && rebuilding_trx_ != nullptr) {
|
|
assert(!write_after_commit_);
|
|
// The CF is probably flushed and hence no need for insert but we still
|
|
// need to keep track of the keys for upcoming rollback/commit.
|
|
// TODO(ajkr): propagate `ProtectionInfoKVOS64`.
|
|
ret_status = WriteBatchInternal::DeleteRange(
|
|
rebuilding_trx_, column_family_id, begin_key, end_key);
|
|
if (ret_status.ok()) {
|
|
MaybeAdvanceSeq(IsDuplicateKeySeq(column_family_id, begin_key));
|
|
}
|
|
} else if (ret_status.ok()) {
|
|
MaybeAdvanceSeq(false /* batch_boundary */);
|
|
}
|
|
return ret_status;
|
|
}
|
|
assert(ret_status.ok());
|
|
|
|
if (db_ != nullptr) {
|
|
auto cf_handle = cf_mems_->GetColumnFamilyHandle();
|
|
if (cf_handle == nullptr) {
|
|
cf_handle = db_->DefaultColumnFamily();
|
|
}
|
|
auto* cfd =
|
|
static_cast_with_check<ColumnFamilyHandleImpl>(cf_handle)->cfd();
|
|
if (!cfd->is_delete_range_supported()) {
|
|
// TODO(ajkr): refactor `SeekToColumnFamily()` so it returns a `Status`.
|
|
ret_status.PermitUncheckedError();
|
|
return Status::NotSupported(
|
|
std::string("DeleteRange not supported for table type ") +
|
|
cfd->ioptions()->table_factory->Name() + " in CF " +
|
|
cfd->GetName());
|
|
}
|
|
int cmp = cfd->user_comparator()->Compare(begin_key, end_key);
|
|
if (cmp > 0) {
|
|
// TODO(ajkr): refactor `SeekToColumnFamily()` so it returns a `Status`.
|
|
ret_status.PermitUncheckedError();
|
|
// It's an empty range where endpoints appear mistaken. Don't bother
|
|
// applying it to the DB, and return an error to the user.
|
|
return Status::InvalidArgument("end key comes before start key");
|
|
} else if (cmp == 0) {
|
|
// TODO(ajkr): refactor `SeekToColumnFamily()` so it returns a `Status`.
|
|
ret_status.PermitUncheckedError();
|
|
// It's an empty range. Don't bother applying it to the DB.
|
|
return Status::OK();
|
|
}
|
|
}
|
|
|
|
if (kv_prot_info != nullptr) {
|
|
auto mem_kv_prot_info =
|
|
kv_prot_info->StripC(column_family_id).ProtectS(sequence_);
|
|
ret_status = DeleteImpl(column_family_id, begin_key, end_key,
|
|
kTypeRangeDeletion, &mem_kv_prot_info);
|
|
} else {
|
|
ret_status = DeleteImpl(column_family_id, begin_key, end_key,
|
|
kTypeRangeDeletion, nullptr /* kv_prot_info */);
|
|
}
|
|
// optimize for non-recovery mode
|
|
// If `ret_status` is `TryAgain` then the next (successful) try will add
|
|
// the key to the rebuilding transaction object. If `ret_status` is
|
|
// another non-OK `Status`, then the `rebuilding_trx_` will be thrown
|
|
// away. So we only need to add to it when `ret_status.ok()`.
|
|
if (UNLIKELY(!ret_status.IsTryAgain() && rebuilding_trx_ != nullptr)) {
|
|
assert(!write_after_commit_);
|
|
// TODO(ajkr): propagate `ProtectionInfoKVOS64`.
|
|
ret_status = WriteBatchInternal::DeleteRange(
|
|
rebuilding_trx_, column_family_id, begin_key, end_key);
|
|
}
|
|
return ret_status;
|
|
}
|
|
|
|
Status MergeCF(uint32_t column_family_id, const Slice& key,
|
|
const Slice& value) override {
|
|
const auto* kv_prot_info = NextProtectionInfo();
|
|
// optimize for non-recovery mode
|
|
if (UNLIKELY(write_after_commit_ && rebuilding_trx_ != nullptr)) {
|
|
// TODO(ajkr): propagate `ProtectionInfoKVOS64`.
|
|
return WriteBatchInternal::Merge(rebuilding_trx_, column_family_id, key,
|
|
value);
|
|
// else insert the values to the memtable right away
|
|
}
|
|
|
|
Status ret_status;
|
|
if (UNLIKELY(!SeekToColumnFamily(column_family_id, &ret_status))) {
|
|
if (ret_status.ok() && rebuilding_trx_ != nullptr) {
|
|
assert(!write_after_commit_);
|
|
// The CF is probably flushed and hence no need for insert but we still
|
|
// need to keep track of the keys for upcoming rollback/commit.
|
|
// TODO(ajkr): propagate `ProtectionInfoKVOS64`.
|
|
ret_status = WriteBatchInternal::Merge(rebuilding_trx_,
|
|
column_family_id, key, value);
|
|
if (ret_status.ok()) {
|
|
MaybeAdvanceSeq(IsDuplicateKeySeq(column_family_id, key));
|
|
}
|
|
} else if (ret_status.ok()) {
|
|
MaybeAdvanceSeq(false /* batch_boundary */);
|
|
}
|
|
return ret_status;
|
|
}
|
|
assert(ret_status.ok());
|
|
|
|
MemTable* mem = cf_mems_->GetMemTable();
|
|
auto* moptions = mem->GetImmutableMemTableOptions();
|
|
if (moptions->merge_operator == nullptr) {
|
|
return Status::InvalidArgument(
|
|
"Merge requires `ColumnFamilyOptions::merge_operator != nullptr`");
|
|
}
|
|
bool perform_merge = false;
|
|
assert(!concurrent_memtable_writes_ ||
|
|
moptions->max_successive_merges == 0);
|
|
|
|
// If we pass DB through and options.max_successive_merges is hit
|
|
// during recovery, Get() will be issued which will try to acquire
|
|
// DB mutex and cause deadlock, as DB mutex is already held.
|
|
// So we disable merge in recovery
|
|
if (moptions->max_successive_merges > 0 && db_ != nullptr &&
|
|
recovering_log_number_ == 0) {
|
|
assert(!concurrent_memtable_writes_);
|
|
LookupKey lkey(key, sequence_);
|
|
|
|
// Count the number of successive merges at the head
|
|
// of the key in the memtable
|
|
size_t num_merges = mem->CountSuccessiveMergeEntries(lkey);
|
|
|
|
if (num_merges >= moptions->max_successive_merges) {
|
|
perform_merge = true;
|
|
}
|
|
}
|
|
|
|
if (perform_merge) {
|
|
// 1) Get the existing value
|
|
std::string get_value;
|
|
|
|
// Pass in the sequence number so that we also include previous merge
|
|
// operations in the same batch.
|
|
SnapshotImpl read_from_snapshot;
|
|
read_from_snapshot.number_ = sequence_;
|
|
ReadOptions read_options;
|
|
read_options.snapshot = &read_from_snapshot;
|
|
|
|
auto cf_handle = cf_mems_->GetColumnFamilyHandle();
|
|
if (cf_handle == nullptr) {
|
|
cf_handle = db_->DefaultColumnFamily();
|
|
}
|
|
Status get_status = db_->Get(read_options, cf_handle, key, &get_value);
|
|
if (!get_status.ok()) {
|
|
// Failed to read a key we know exists. Store the delta in memtable.
|
|
perform_merge = false;
|
|
} else {
|
|
Slice get_value_slice = Slice(get_value);
|
|
|
|
// 2) Apply this merge
|
|
auto merge_operator = moptions->merge_operator;
|
|
assert(merge_operator);
|
|
|
|
std::string new_value;
|
|
Status merge_status = MergeHelper::TimedFullMerge(
|
|
merge_operator, key, &get_value_slice, {value}, &new_value,
|
|
moptions->info_log, moptions->statistics,
|
|
SystemClock::Default().get());
|
|
|
|
if (!merge_status.ok()) {
|
|
// Failed to merge!
|
|
// Store the delta in memtable
|
|
perform_merge = false;
|
|
} else {
|
|
// 3) Add value to memtable
|
|
assert(!concurrent_memtable_writes_);
|
|
if (kv_prot_info != nullptr) {
|
|
auto merged_kv_prot_info =
|
|
kv_prot_info->StripC(column_family_id).ProtectS(sequence_);
|
|
merged_kv_prot_info.UpdateV(value, new_value);
|
|
merged_kv_prot_info.UpdateO(kTypeMerge, kTypeValue);
|
|
ret_status = mem->Add(sequence_, kTypeValue, key, new_value,
|
|
&merged_kv_prot_info);
|
|
} else {
|
|
ret_status = mem->Add(sequence_, kTypeValue, key, new_value,
|
|
nullptr /* kv_prot_info */);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!perform_merge) {
|
|
assert(ret_status.ok());
|
|
// Add merge operand to memtable
|
|
if (kv_prot_info != nullptr) {
|
|
auto mem_kv_prot_info =
|
|
kv_prot_info->StripC(column_family_id).ProtectS(sequence_);
|
|
ret_status =
|
|
mem->Add(sequence_, kTypeMerge, key, value, &mem_kv_prot_info,
|
|
concurrent_memtable_writes_, get_post_process_info(mem));
|
|
} else {
|
|
ret_status = mem->Add(
|
|
sequence_, kTypeMerge, key, value, nullptr /* kv_prot_info */,
|
|
concurrent_memtable_writes_, get_post_process_info(mem));
|
|
}
|
|
}
|
|
|
|
if (UNLIKELY(ret_status.IsTryAgain())) {
|
|
assert(seq_per_batch_);
|
|
const bool kBatchBoundary = true;
|
|
MaybeAdvanceSeq(kBatchBoundary);
|
|
} else if (ret_status.ok()) {
|
|
MaybeAdvanceSeq();
|
|
CheckMemtableFull();
|
|
}
|
|
// optimize for non-recovery mode
|
|
// If `ret_status` is `TryAgain` then the next (successful) try will add
|
|
// the key to the rebuilding transaction object. If `ret_status` is
|
|
// another non-OK `Status`, then the `rebuilding_trx_` will be thrown
|
|
// away. So we only need to add to it when `ret_status.ok()`.
|
|
if (UNLIKELY(ret_status.ok() && rebuilding_trx_ != nullptr)) {
|
|
assert(!write_after_commit_);
|
|
// TODO(ajkr): propagate `ProtectionInfoKVOS64`.
|
|
ret_status = WriteBatchInternal::Merge(rebuilding_trx_, column_family_id,
|
|
key, value);
|
|
}
|
|
return ret_status;
|
|
}
|
|
|
|
Status PutBlobIndexCF(uint32_t column_family_id, const Slice& key,
|
|
const Slice& value) override {
|
|
const auto* kv_prot_info = NextProtectionInfo();
|
|
if (kv_prot_info != nullptr) {
|
|
// Memtable needs seqno, doesn't need CF ID
|
|
auto mem_kv_prot_info =
|
|
kv_prot_info->StripC(column_family_id).ProtectS(sequence_);
|
|
// Same as PutCF except for value type.
|
|
return PutCFImpl(column_family_id, key, value, kTypeBlobIndex,
|
|
&mem_kv_prot_info);
|
|
} else {
|
|
return PutCFImpl(column_family_id, key, value, kTypeBlobIndex,
|
|
nullptr /* kv_prot_info */);
|
|
}
|
|
}
|
|
|
|
void CheckMemtableFull() {
|
|
if (flush_scheduler_ != nullptr) {
|
|
auto* cfd = cf_mems_->current();
|
|
assert(cfd != nullptr);
|
|
if (cfd->mem()->ShouldScheduleFlush() &&
|
|
cfd->mem()->MarkFlushScheduled()) {
|
|
// MarkFlushScheduled only returns true if we are the one that
|
|
// should take action, so no need to dedup further
|
|
flush_scheduler_->ScheduleWork(cfd);
|
|
}
|
|
}
|
|
// check if memtable_list size exceeds max_write_buffer_size_to_maintain
|
|
if (trim_history_scheduler_ != nullptr) {
|
|
auto* cfd = cf_mems_->current();
|
|
|
|
assert(cfd);
|
|
assert(cfd->ioptions());
|
|
|
|
const size_t size_to_maintain = static_cast<size_t>(
|
|
cfd->ioptions()->max_write_buffer_size_to_maintain);
|
|
|
|
if (size_to_maintain > 0) {
|
|
MemTableList* const imm = cfd->imm();
|
|
assert(imm);
|
|
|
|
if (imm->HasHistory()) {
|
|
const MemTable* const mem = cfd->mem();
|
|
assert(mem);
|
|
|
|
if (mem->MemoryAllocatedBytes() +
|
|
imm->MemoryAllocatedBytesExcludingLast() >=
|
|
size_to_maintain &&
|
|
imm->MarkTrimHistoryNeeded()) {
|
|
trim_history_scheduler_->ScheduleWork(cfd);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// The write batch handler calls MarkBeginPrepare with unprepare set to true
|
|
// if it encounters the kTypeBeginUnprepareXID marker.
|
|
Status MarkBeginPrepare(bool unprepare) override {
|
|
assert(rebuilding_trx_ == nullptr);
|
|
assert(db_);
|
|
|
|
if (recovering_log_number_ != 0) {
|
|
// during recovery we rebuild a hollow transaction
|
|
// from all encountered prepare sections of the wal
|
|
if (db_->allow_2pc() == false) {
|
|
return Status::NotSupported(
|
|
"WAL contains prepared transactions. Open with "
|
|
"TransactionDB::Open().");
|
|
}
|
|
|
|
// we are now iterating through a prepared section
|
|
rebuilding_trx_ = new WriteBatch();
|
|
rebuilding_trx_seq_ = sequence_;
|
|
// Verify that we have matching MarkBeginPrepare/MarkEndPrepare markers.
|
|
// unprepared_batch_ should be false because it is false by default, and
|
|
// gets reset to false in MarkEndPrepare.
|
|
assert(!unprepared_batch_);
|
|
unprepared_batch_ = unprepare;
|
|
|
|
if (has_valid_writes_ != nullptr) {
|
|
*has_valid_writes_ = true;
|
|
}
|
|
}
|
|
|
|
return Status::OK();
|
|
}
|
|
|
|
Status MarkEndPrepare(const Slice& name) override {
|
|
assert(db_);
|
|
assert((rebuilding_trx_ != nullptr) == (recovering_log_number_ != 0));
|
|
|
|
if (recovering_log_number_ != 0) {
|
|
assert(db_->allow_2pc());
|
|
size_t batch_cnt =
|
|
write_after_commit_
|
|
? 0 // 0 will disable further checks
|
|
: static_cast<size_t>(sequence_ - rebuilding_trx_seq_ + 1);
|
|
db_->InsertRecoveredTransaction(recovering_log_number_, name.ToString(),
|
|
rebuilding_trx_, rebuilding_trx_seq_,
|
|
batch_cnt, unprepared_batch_);
|
|
unprepared_batch_ = false;
|
|
rebuilding_trx_ = nullptr;
|
|
} else {
|
|
assert(rebuilding_trx_ == nullptr);
|
|
}
|
|
const bool batch_boundry = true;
|
|
MaybeAdvanceSeq(batch_boundry);
|
|
|
|
return Status::OK();
|
|
}
|
|
|
|
Status MarkNoop(bool empty_batch) override {
|
|
// A hack in pessimistic transaction could result into a noop at the start
|
|
// of the write batch, that should be ignored.
|
|
if (!empty_batch) {
|
|
// In the absence of Prepare markers, a kTypeNoop tag indicates the end of
|
|
// a batch. This happens when write batch commits skipping the prepare
|
|
// phase.
|
|
const bool batch_boundry = true;
|
|
MaybeAdvanceSeq(batch_boundry);
|
|
}
|
|
return Status::OK();
|
|
}
|
|
|
|
Status MarkCommit(const Slice& name) override {
|
|
assert(db_);
|
|
|
|
Status s;
|
|
|
|
if (recovering_log_number_ != 0) {
|
|
// We must hold db mutex in recovery.
|
|
db_->mutex()->AssertHeld();
|
|
// in recovery when we encounter a commit marker
|
|
// we lookup this transaction in our set of rebuilt transactions
|
|
// and commit.
|
|
auto trx = db_->GetRecoveredTransaction(name.ToString());
|
|
|
|
// the log containing the prepared section may have
|
|
// been released in the last incarnation because the
|
|
// data was flushed to L0
|
|
if (trx != nullptr) {
|
|
// at this point individual CF lognumbers will prevent
|
|
// duplicate re-insertion of values.
|
|
assert(log_number_ref_ == 0);
|
|
if (write_after_commit_) {
|
|
// write_after_commit_ can only have one batch in trx.
|
|
assert(trx->batches_.size() == 1);
|
|
const auto& batch_info = trx->batches_.begin()->second;
|
|
// all inserts must reference this trx log number
|
|
log_number_ref_ = batch_info.log_number_;
|
|
s = batch_info.batch_->Iterate(this);
|
|
log_number_ref_ = 0;
|
|
}
|
|
// else the values are already inserted before the commit
|
|
|
|
if (s.ok()) {
|
|
db_->DeleteRecoveredTransaction(name.ToString());
|
|
}
|
|
if (has_valid_writes_ != nullptr) {
|
|
*has_valid_writes_ = true;
|
|
}
|
|
}
|
|
} else {
|
|
// When writes are not delayed until commit, there is no disconnect
|
|
// between a memtable write and the WAL that supports it. So the commit
|
|
// need not reference any log as the only log to which it depends.
|
|
assert(!write_after_commit_ || log_number_ref_ > 0);
|
|
}
|
|
const bool batch_boundry = true;
|
|
MaybeAdvanceSeq(batch_boundry);
|
|
|
|
return s;
|
|
}
|
|
|
|
Status MarkCommitWithTimestamp(const Slice& name,
|
|
const Slice& commit_ts) override {
|
|
assert(db_);
|
|
|
|
Status s;
|
|
|
|
if (recovering_log_number_ != 0) {
|
|
// In recovery, db mutex must be held.
|
|
db_->mutex()->AssertHeld();
|
|
// in recovery when we encounter a commit marker
|
|
// we lookup this transaction in our set of rebuilt transactions
|
|
// and commit.
|
|
auto trx = db_->GetRecoveredTransaction(name.ToString());
|
|
// the log containing the prepared section may have
|
|
// been released in the last incarnation because the
|
|
// data was flushed to L0
|
|
if (trx) {
|
|
// at this point individual CF lognumbers will prevent
|
|
// duplicate re-insertion of values.
|
|
assert(0 == log_number_ref_);
|
|
if (write_after_commit_) {
|
|
// write_after_commit_ can only have one batch in trx.
|
|
assert(trx->batches_.size() == 1);
|
|
const auto& batch_info = trx->batches_.begin()->second;
|
|
// all inserts must reference this trx log number
|
|
log_number_ref_ = batch_info.log_number_;
|
|
const auto checker = [this](uint32_t cf, size_t& ts_sz) {
|
|
assert(db_);
|
|
VersionSet* const vset = db_->GetVersionSet();
|
|
assert(vset);
|
|
ColumnFamilySet* const cf_set = vset->GetColumnFamilySet();
|
|
assert(cf_set);
|
|
ColumnFamilyData* cfd = cf_set->GetColumnFamily(cf);
|
|
assert(cfd);
|
|
const auto* const ucmp = cfd->user_comparator();
|
|
assert(ucmp);
|
|
if (ucmp->timestamp_size() == 0) {
|
|
ts_sz = 0;
|
|
} else if (ucmp->timestamp_size() != ts_sz) {
|
|
return Status::InvalidArgument("Timestamp size mismatch");
|
|
}
|
|
return Status::OK();
|
|
};
|
|
s = batch_info.batch_->AssignTimestamp(commit_ts, checker);
|
|
if (s.ok()) {
|
|
s = batch_info.batch_->Iterate(this);
|
|
log_number_ref_ = 0;
|
|
}
|
|
}
|
|
// else the values are already inserted before the commit
|
|
|
|
if (s.ok()) {
|
|
db_->DeleteRecoveredTransaction(name.ToString());
|
|
}
|
|
if (has_valid_writes_) {
|
|
*has_valid_writes_ = true;
|
|
}
|
|
}
|
|
} else {
|
|
// When writes are not delayed until commit, there is no connection
|
|
// between a memtable write and the WAL that supports it. So the commit
|
|
// need not reference any log as the only log to which it depends.
|
|
assert(!write_after_commit_ || log_number_ref_ > 0);
|
|
}
|
|
constexpr bool batch_boundary = true;
|
|
MaybeAdvanceSeq(batch_boundary);
|
|
|
|
return s;
|
|
}
|
|
|
|
Status MarkRollback(const Slice& name) override {
|
|
assert(db_);
|
|
|
|
if (recovering_log_number_ != 0) {
|
|
auto trx = db_->GetRecoveredTransaction(name.ToString());
|
|
|
|
// the log containing the transactions prep section
|
|
// may have been released in the previous incarnation
|
|
// because we knew it had been rolled back
|
|
if (trx != nullptr) {
|
|
db_->DeleteRecoveredTransaction(name.ToString());
|
|
}
|
|
} else {
|
|
// in non recovery we simply ignore this tag
|
|
}
|
|
|
|
const bool batch_boundry = true;
|
|
MaybeAdvanceSeq(batch_boundry);
|
|
|
|
return Status::OK();
|
|
}
|
|
|
|
private:
|
|
MemTablePostProcessInfo* get_post_process_info(MemTable* mem) {
|
|
if (!concurrent_memtable_writes_) {
|
|
// No need to batch counters locally if we don't use concurrent mode.
|
|
return nullptr;
|
|
}
|
|
return &GetPostMap()[mem];
|
|
}
|
|
};
|
|
|
|
// This function can only be called in these conditions:
|
|
// 1) During Recovery()
|
|
// 2) During Write(), in a single-threaded write thread
|
|
// 3) During Write(), in a concurrent context where memtables has been cloned
|
|
// The reason is that it calls memtables->Seek(), which has a stateful cache
|
|
Status WriteBatchInternal::InsertInto(
|
|
WriteThread::WriteGroup& write_group, SequenceNumber sequence,
|
|
ColumnFamilyMemTables* memtables, FlushScheduler* flush_scheduler,
|
|
TrimHistoryScheduler* trim_history_scheduler,
|
|
bool ignore_missing_column_families, uint64_t recovery_log_number, DB* db,
|
|
bool concurrent_memtable_writes, bool seq_per_batch, bool batch_per_txn) {
|
|
MemTableInserter inserter(
|
|
sequence, memtables, flush_scheduler, trim_history_scheduler,
|
|
ignore_missing_column_families, recovery_log_number, db,
|
|
concurrent_memtable_writes, nullptr /* prot_info */,
|
|
nullptr /*has_valid_writes*/, seq_per_batch, batch_per_txn);
|
|
for (auto w : write_group) {
|
|
if (w->CallbackFailed()) {
|
|
continue;
|
|
}
|
|
w->sequence = inserter.sequence();
|
|
if (!w->ShouldWriteToMemtable()) {
|
|
// In seq_per_batch_ mode this advances the seq by one.
|
|
inserter.MaybeAdvanceSeq(true);
|
|
continue;
|
|
}
|
|
SetSequence(w->batch, inserter.sequence());
|
|
inserter.set_log_number_ref(w->log_ref);
|
|
inserter.set_prot_info(w->batch->prot_info_.get());
|
|
w->status = w->batch->Iterate(&inserter);
|
|
if (!w->status.ok()) {
|
|
return w->status;
|
|
}
|
|
assert(!seq_per_batch || w->batch_cnt != 0);
|
|
assert(!seq_per_batch || inserter.sequence() - w->sequence == w->batch_cnt);
|
|
}
|
|
return Status::OK();
|
|
}
|
|
|
|
Status WriteBatchInternal::InsertInto(
|
|
WriteThread::Writer* writer, SequenceNumber sequence,
|
|
ColumnFamilyMemTables* memtables, FlushScheduler* flush_scheduler,
|
|
TrimHistoryScheduler* trim_history_scheduler,
|
|
bool ignore_missing_column_families, uint64_t log_number, DB* db,
|
|
bool concurrent_memtable_writes, bool seq_per_batch, size_t batch_cnt,
|
|
bool batch_per_txn, bool hint_per_batch) {
|
|
#ifdef NDEBUG
|
|
(void)batch_cnt;
|
|
#endif
|
|
assert(writer->ShouldWriteToMemtable());
|
|
MemTableInserter inserter(sequence, memtables, flush_scheduler,
|
|
trim_history_scheduler,
|
|
ignore_missing_column_families, log_number, db,
|
|
concurrent_memtable_writes, nullptr /* prot_info */,
|
|
nullptr /*has_valid_writes*/, seq_per_batch,
|
|
batch_per_txn, hint_per_batch);
|
|
SetSequence(writer->batch, sequence);
|
|
inserter.set_log_number_ref(writer->log_ref);
|
|
inserter.set_prot_info(writer->batch->prot_info_.get());
|
|
Status s = writer->batch->Iterate(&inserter);
|
|
assert(!seq_per_batch || batch_cnt != 0);
|
|
assert(!seq_per_batch || inserter.sequence() - sequence == batch_cnt);
|
|
if (concurrent_memtable_writes) {
|
|
inserter.PostProcess();
|
|
}
|
|
return s;
|
|
}
|
|
|
|
Status WriteBatchInternal::InsertInto(
|
|
const WriteBatch* batch, ColumnFamilyMemTables* memtables,
|
|
FlushScheduler* flush_scheduler,
|
|
TrimHistoryScheduler* trim_history_scheduler,
|
|
bool ignore_missing_column_families, uint64_t log_number, DB* db,
|
|
bool concurrent_memtable_writes, SequenceNumber* next_seq,
|
|
bool* has_valid_writes, bool seq_per_batch, bool batch_per_txn) {
|
|
MemTableInserter inserter(Sequence(batch), memtables, flush_scheduler,
|
|
trim_history_scheduler,
|
|
ignore_missing_column_families, log_number, db,
|
|
concurrent_memtable_writes, batch->prot_info_.get(),
|
|
has_valid_writes, seq_per_batch, batch_per_txn);
|
|
Status s = batch->Iterate(&inserter);
|
|
if (next_seq != nullptr) {
|
|
*next_seq = inserter.sequence();
|
|
}
|
|
if (concurrent_memtable_writes) {
|
|
inserter.PostProcess();
|
|
}
|
|
return s;
|
|
}
|
|
|
|
Status WriteBatchInternal::SetContents(WriteBatch* b, const Slice& contents) {
|
|
assert(contents.size() >= WriteBatchInternal::kHeader);
|
|
assert(b->prot_info_ == nullptr);
|
|
b->rep_.assign(contents.data(), contents.size());
|
|
b->content_flags_.store(ContentFlags::DEFERRED, std::memory_order_relaxed);
|
|
return Status::OK();
|
|
}
|
|
|
|
Status WriteBatchInternal::Append(WriteBatch* dst, const WriteBatch* src,
|
|
const bool wal_only) {
|
|
assert(dst->Count() == 0 ||
|
|
(dst->prot_info_ == nullptr) == (src->prot_info_ == nullptr));
|
|
size_t src_len;
|
|
int src_count;
|
|
uint32_t src_flags;
|
|
|
|
const SavePoint& batch_end = src->GetWalTerminationPoint();
|
|
|
|
if (wal_only && !batch_end.is_cleared()) {
|
|
src_len = batch_end.size - WriteBatchInternal::kHeader;
|
|
src_count = batch_end.count;
|
|
src_flags = batch_end.content_flags;
|
|
} else {
|
|
src_len = src->rep_.size() - WriteBatchInternal::kHeader;
|
|
src_count = Count(src);
|
|
src_flags = src->content_flags_.load(std::memory_order_relaxed);
|
|
}
|
|
|
|
if (dst->prot_info_ != nullptr) {
|
|
std::copy(src->prot_info_->entries_.begin(),
|
|
src->prot_info_->entries_.begin() + src_count,
|
|
std::back_inserter(dst->prot_info_->entries_));
|
|
} else if (src->prot_info_ != nullptr) {
|
|
dst->prot_info_.reset(new WriteBatch::ProtectionInfo(*src->prot_info_));
|
|
}
|
|
SetCount(dst, Count(dst) + src_count);
|
|
assert(src->rep_.size() >= WriteBatchInternal::kHeader);
|
|
dst->rep_.append(src->rep_.data() + WriteBatchInternal::kHeader, src_len);
|
|
dst->content_flags_.store(
|
|
dst->content_flags_.load(std::memory_order_relaxed) | src_flags,
|
|
std::memory_order_relaxed);
|
|
return Status::OK();
|
|
}
|
|
|
|
size_t WriteBatchInternal::AppendedByteSize(size_t leftByteSize,
|
|
size_t rightByteSize) {
|
|
if (leftByteSize == 0 || rightByteSize == 0) {
|
|
return leftByteSize + rightByteSize;
|
|
} else {
|
|
return leftByteSize + rightByteSize - WriteBatchInternal::kHeader;
|
|
}
|
|
}
|
|
|
|
} // namespace ROCKSDB_NAMESPACE
|