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rocksdb/tools/trace_analyzer_test.cc
anand76 afa2420c2b Introduce a new storage specific Env API (#5761) 
Summary:
The current Env API encompasses both storage/file operations, as well as OS related operations. Most of the APIs return a Status, which does not have enough metadata about an error, such as whether its retry-able or not, scope (i.e fault domain) of the error etc., that may be required in order to properly handle a storage error. The file APIs also do not provide enough control over the IO SLA, such as timeout, prioritization, hinting about placement and redundancy etc.

This PR separates out the file/storage APIs from Env into a new FileSystem class. The APIs are updated to return an IOStatus with metadata about the error, as well as to take an IOOptions structure as input in order to allow more control over the IO.

The user can set both ```options.env``` and ```options.file_system``` to specify that RocksDB should use the former for OS related operations and the latter for storage operations. Internally, a ```CompositeEnvWrapper``` has been introduced that inherits from ```Env``` and redirects individual methods to either an ```Env``` implementation or the ```FileSystem``` as appropriate. When options are sanitized during ```DB::Open```, ```options.env``` is replaced with a newly allocated ```CompositeEnvWrapper``` instance if both env and file_system have been specified. This way, the rest of the RocksDB code can continue to function as before.

This PR also ports PosixEnv to the new API by splitting it into two - PosixEnv and PosixFileSystem. PosixEnv is defined as a sub-class of CompositeEnvWrapper, and threading/time functions are overridden with Posix specific implementations in order to avoid an extra level of indirection.

The ```CompositeEnvWrapper``` translates ```IOStatus``` return code to ```Status```, and sets the severity to ```kSoftError``` if the io_status is retryable. The error handling code in RocksDB can then recover the DB automatically.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/5761

Differential Revision: D18868376

Pulled By: anand1976

fbshipit-source-id: 39efe18a162ea746fabac6360ff529baba48486f
2019-12-13 14:48:41 -08:00

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// 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) 2012 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.
#ifndef ROCKSDB_LITE
#ifndef GFLAGS
#include <cstdio>
int main() {
fprintf(stderr, "Please install gflags to run trace_analyzer test\n");
return 1;
}
#else
#include <chrono>
#include <cstdio>
#include <cstdlib>
#include <sstream>
#include <thread>
#include "db/db_test_util.h"
#include "file/read_write_util.h"
#include "rocksdb/db.h"
#include "rocksdb/env.h"
#include "rocksdb/status.h"
#include "rocksdb/trace_reader_writer.h"
#include "test_util/testharness.h"
#include "test_util/testutil.h"
#include "tools/trace_analyzer_tool.h"
#include "trace_replay/trace_replay.h"
namespace rocksdb {
namespace {
static const int kMaxArgCount = 100;
static const size_t kArgBufferSize = 100000;
} // namespace
// The helper functions for the test
class TraceAnalyzerTest : public testing::Test {
public:
TraceAnalyzerTest() : rnd_(0xFB) {
// test_path_ = test::TmpDir() + "trace_analyzer_test";
test_path_ = test::PerThreadDBPath("trace_analyzer_test");
env_ = rocksdb::Env::Default();
env_->CreateDir(test_path_);
dbname_ = test_path_ + "/db";
}
~TraceAnalyzerTest() override {}
void GenerateTrace(std::string trace_path) {
Options options;
options.create_if_missing = true;
options.merge_operator = MergeOperators::CreatePutOperator();
ReadOptions ro;
WriteOptions wo;
TraceOptions trace_opt;
DB* db_ = nullptr;
std::string value;
std::unique_ptr<TraceWriter> trace_writer;
Iterator* single_iter = nullptr;
ASSERT_OK(
NewFileTraceWriter(env_, env_options_, trace_path, &trace_writer));
ASSERT_OK(DB::Open(options, dbname_, &db_));
ASSERT_OK(db_->StartTrace(trace_opt, std::move(trace_writer)));
WriteBatch batch;
ASSERT_OK(batch.Put("a", "aaaaaaaaa"));
ASSERT_OK(batch.Merge("b", "aaaaaaaaaaaaaaaaaaaa"));
ASSERT_OK(batch.Delete("c"));
ASSERT_OK(batch.SingleDelete("d"));
ASSERT_OK(batch.DeleteRange("e", "f"));
ASSERT_OK(db_->Write(wo, &batch));
ASSERT_OK(db_->Get(ro, "a", &value));
single_iter = db_->NewIterator(ro);
single_iter->Seek("a");
single_iter->SeekForPrev("b");
delete single_iter;
std::this_thread::sleep_for (std::chrono::seconds(1));
db_->Get(ro, "g", &value);
ASSERT_OK(db_->EndTrace());
ASSERT_OK(env_->FileExists(trace_path));
std::unique_ptr<WritableFile> whole_f;
std::string whole_path = test_path_ + "/0.txt";
ASSERT_OK(env_->NewWritableFile(whole_path, &whole_f, env_options_));
std::string whole_str = "0x61\n0x62\n0x63\n0x64\n0x65\n0x66\n";
ASSERT_OK(whole_f->Append(whole_str));
delete db_;
ASSERT_OK(DestroyDB(dbname_, options));
}
void RunTraceAnalyzer(const std::vector<std::string>& args) {
char arg_buffer[kArgBufferSize];
char* argv[kMaxArgCount];
int argc = 0;
int cursor = 0;
for (const auto& arg : args) {
ASSERT_LE(cursor + arg.size() + 1, kArgBufferSize);
ASSERT_LE(argc + 1, kMaxArgCount);
snprintf(arg_buffer + cursor, arg.size() + 1, "%s", arg.c_str());
argv[argc++] = arg_buffer + cursor;
cursor += static_cast<int>(arg.size()) + 1;
}
ASSERT_EQ(0, rocksdb::trace_analyzer_tool(argc, argv));
}
void CheckFileContent(const std::vector<std::string>& cnt,
std::string file_path, bool full_content) {
ASSERT_OK(env_->FileExists(file_path));
std::unique_ptr<SequentialFile> f_ptr;
ASSERT_OK(env_->NewSequentialFile(file_path, &f_ptr, env_options_));
std::string get_line;
std::istringstream iss;
bool has_data = true;
std::vector<std::string> result;
uint32_t count;
Status s;
std::unique_ptr<FSSequentialFile> file =
NewLegacySequentialFileWrapper(f_ptr);
for (count = 0; ReadOneLine(&iss, file.get(), &get_line, &has_data, &s);
++count) {
ASSERT_OK(s);
result.push_back(get_line);
}
ASSERT_EQ(cnt.size(), result.size());
for (int i = 0; i < static_cast<int>(result.size()); i++) {
if (full_content) {
ASSERT_EQ(result[i], cnt[i]);
} else {
ASSERT_EQ(result[i][0], cnt[i][0]);
}
}
return;
}
void AnalyzeTrace(std::vector<std::string>& paras_diff,
std::string output_path, std::string trace_path) {
std::vector<std::string> paras = {"./trace_analyzer",
"-convert_to_human_readable_trace",
"-output_key_stats",
"-output_access_count_stats",
"-output_prefix=test",
"-output_prefix_cut=1",
"-output_time_series",
"-output_value_distribution",
"-output_qps_stats",
"-no_key",
"-no_print"};
for (auto& para : paras_diff) {
paras.push_back(para);
}
Status s = env_->FileExists(trace_path);
if (!s.ok()) {
GenerateTrace(trace_path);
}
env_->CreateDir(output_path);
RunTraceAnalyzer(paras);
}
rocksdb::Env* env_;
EnvOptions env_options_;
std::string test_path_;
std::string dbname_;
Random rnd_;
};
TEST_F(TraceAnalyzerTest, Get) {
std::string trace_path = test_path_ + "/trace";
std::string output_path = test_path_ + "/get";
std::string file_path;
std::vector<std::string> paras = {"-analyze_get"};
paras.push_back("-output_dir=" + output_path);
paras.push_back("-trace_path=" + trace_path);
paras.push_back("-key_space_dir=" + test_path_);
AnalyzeTrace(paras, output_path, trace_path);
// check the key_stats file
std::vector<std::string> k_stats = {"0 10 0 1 1.000000", "0 10 1 1 1.000000"};
file_path = output_path + "/test-get-0-accessed_key_stats.txt";
CheckFileContent(k_stats, file_path, true);
// Check the access count distribution
std::vector<std::string> k_dist = {"access_count: 1 num: 2"};
file_path = output_path + "/test-get-0-accessed_key_count_distribution.txt";
CheckFileContent(k_dist, file_path, true);
// Check the trace sequence
std::vector<std::string> k_sequence = {"1", "5", "2", "3", "4",
"0", "6", "7", "0"};
file_path = output_path + "/test-human_readable_trace.txt";
CheckFileContent(k_sequence, file_path, false);
// Check the prefix
std::vector<std::string> k_prefix = {"0 0 0 0.000000 0.000000 0x30",
"1 1 1 1.000000 1.000000 0x61"};
file_path = output_path + "/test-get-0-accessed_key_prefix_cut.txt";
CheckFileContent(k_prefix, file_path, true);
// Check the time series
std::vector<std::string> k_series = {"0 1533000630 0", "0 1533000630 1"};
file_path = output_path + "/test-get-0-time_series.txt";
CheckFileContent(k_series, file_path, false);
// Check the accessed key in whole key space
std::vector<std::string> k_whole_access = {"0 1"};
file_path = output_path + "/test-get-0-whole_key_stats.txt";
CheckFileContent(k_whole_access, file_path, true);
// Check the whole key prefix cut
std::vector<std::string> k_whole_prefix = {"0 0x61", "1 0x62", "2 0x63",
"3 0x64", "4 0x65", "5 0x66"};
file_path = output_path + "/test-get-0-whole_key_prefix_cut.txt";
CheckFileContent(k_whole_prefix, file_path, true);
// Check the overall qps
std::vector<std::string> all_qps = {"1 0 0 0 0 0 0 0 1"};
file_path = output_path + "/test-qps_stats.txt";
CheckFileContent(all_qps, file_path, true);
// Check the qps of get
std::vector<std::string> get_qps = {"1"};
file_path = output_path + "/test-get-0-qps_stats.txt";
CheckFileContent(get_qps, file_path, true);
// Check the top k qps prefix cut
std::vector<std::string> top_qps = {"At time: 0 with QPS: 1",
"The prefix: 0x61 Access count: 1"};
file_path = output_path + "/test-get-0-accessed_top_k_qps_prefix_cut.txt";
CheckFileContent(top_qps, file_path, true);
}
// Test analyzing of Put
TEST_F(TraceAnalyzerTest, Put) {
std::string trace_path = test_path_ + "/trace";
std::string output_path = test_path_ + "/put";
std::string file_path;
std::vector<std::string> paras = {"-analyze_put"};
paras.push_back("-output_dir=" + output_path);
paras.push_back("-trace_path=" + trace_path);
paras.push_back("-key_space_dir=" + test_path_);
AnalyzeTrace(paras, output_path, trace_path);
// check the key_stats file
std::vector<std::string> k_stats = {"0 9 0 1 1.000000"};
file_path = output_path + "/test-put-0-accessed_key_stats.txt";
CheckFileContent(k_stats, file_path, true);
// Check the access count distribution
std::vector<std::string> k_dist = {"access_count: 1 num: 1"};
file_path = output_path + "/test-put-0-accessed_key_count_distribution.txt";
CheckFileContent(k_dist, file_path, true);
// Check the trace sequence
std::vector<std::string> k_sequence = {"1", "5", "2", "3", "4",
"0", "6", "7", "0"};
file_path = output_path + "/test-human_readable_trace.txt";
CheckFileContent(k_sequence, file_path, false);
// Check the prefix
std::vector<std::string> k_prefix = {"0 0 0 0.000000 0.000000 0x30"};
file_path = output_path + "/test-put-0-accessed_key_prefix_cut.txt";
CheckFileContent(k_prefix, file_path, true);
// Check the time series
std::vector<std::string> k_series = {"1 1533056278 0"};
file_path = output_path + "/test-put-0-time_series.txt";
CheckFileContent(k_series, file_path, false);
// Check the accessed key in whole key space
std::vector<std::string> k_whole_access = {"0 1"};
file_path = output_path + "/test-put-0-whole_key_stats.txt";
CheckFileContent(k_whole_access, file_path, true);
// Check the whole key prefix cut
std::vector<std::string> k_whole_prefix = {"0 0x61", "1 0x62", "2 0x63",
"3 0x64", "4 0x65", "5 0x66"};
file_path = output_path + "/test-put-0-whole_key_prefix_cut.txt";
CheckFileContent(k_whole_prefix, file_path, true);
// Check the overall qps
std::vector<std::string> all_qps = {"1 1 0 0 0 0 0 0 2"};
file_path = output_path + "/test-qps_stats.txt";
CheckFileContent(all_qps, file_path, true);
// Check the qps of Put
std::vector<std::string> get_qps = {"1"};
file_path = output_path + "/test-put-0-qps_stats.txt";
CheckFileContent(get_qps, file_path, true);
// Check the top k qps prefix cut
std::vector<std::string> top_qps = {"At time: 0 with QPS: 1",
"The prefix: 0x61 Access count: 1"};
file_path = output_path + "/test-put-0-accessed_top_k_qps_prefix_cut.txt";
CheckFileContent(top_qps, file_path, true);
// Check the value size distribution
std::vector<std::string> value_dist = {
"Number_of_value_size_between 0 and 16 is: 1"};
file_path = output_path + "/test-put-0-accessed_value_size_distribution.txt";
CheckFileContent(value_dist, file_path, true);
}
// Test analyzing of delete
TEST_F(TraceAnalyzerTest, Delete) {
std::string trace_path = test_path_ + "/trace";
std::string output_path = test_path_ + "/delete";
std::string file_path;
std::vector<std::string> paras = {"-analyze_delete"};
paras.push_back("-output_dir=" + output_path);
paras.push_back("-trace_path=" + trace_path);
paras.push_back("-key_space_dir=" + test_path_);
AnalyzeTrace(paras, output_path, trace_path);
// check the key_stats file
std::vector<std::string> k_stats = {"0 0 0 1 1.000000"};
file_path = output_path + "/test-delete-0-accessed_key_stats.txt";
CheckFileContent(k_stats, file_path, true);
// Check the access count distribution
std::vector<std::string> k_dist = {"access_count: 1 num: 1"};
file_path =
output_path + "/test-delete-0-accessed_key_count_distribution.txt";
CheckFileContent(k_dist, file_path, true);
// Check the trace sequence
std::vector<std::string> k_sequence = {"1", "5", "2", "3", "4",
"0", "6", "7", "0"};
file_path = output_path + "/test-human_readable_trace.txt";
CheckFileContent(k_sequence, file_path, false);
// Check the prefix
std::vector<std::string> k_prefix = {"0 0 0 0.000000 0.000000 0x30"};
file_path = output_path + "/test-delete-0-accessed_key_prefix_cut.txt";
CheckFileContent(k_prefix, file_path, true);
// Check the time series
std::vector<std::string> k_series = {"2 1533000630 0"};
file_path = output_path + "/test-delete-0-time_series.txt";
CheckFileContent(k_series, file_path, false);
// Check the accessed key in whole key space
std::vector<std::string> k_whole_access = {"2 1"};
file_path = output_path + "/test-delete-0-whole_key_stats.txt";
CheckFileContent(k_whole_access, file_path, true);
// Check the whole key prefix cut
std::vector<std::string> k_whole_prefix = {"0 0x61", "1 0x62", "2 0x63",
"3 0x64", "4 0x65", "5 0x66"};
file_path = output_path + "/test-delete-0-whole_key_prefix_cut.txt";
CheckFileContent(k_whole_prefix, file_path, true);
// Check the overall qps
std::vector<std::string> all_qps = {"1 1 1 0 0 0 0 0 3"};
file_path = output_path + "/test-qps_stats.txt";
CheckFileContent(all_qps, file_path, true);
// Check the qps of Delete
std::vector<std::string> get_qps = {"1"};
file_path = output_path + "/test-delete-0-qps_stats.txt";
CheckFileContent(get_qps, file_path, true);
// Check the top k qps prefix cut
std::vector<std::string> top_qps = {"At time: 0 with QPS: 1",
"The prefix: 0x63 Access count: 1"};
file_path = output_path + "/test-delete-0-accessed_top_k_qps_prefix_cut.txt";
CheckFileContent(top_qps, file_path, true);
}
// Test analyzing of Merge
TEST_F(TraceAnalyzerTest, Merge) {
std::string trace_path = test_path_ + "/trace";
std::string output_path = test_path_ + "/merge";
std::string file_path;
std::vector<std::string> paras = {"-analyze_merge"};
paras.push_back("-output_dir=" + output_path);
paras.push_back("-trace_path=" + trace_path);
paras.push_back("-key_space_dir=" + test_path_);
AnalyzeTrace(paras, output_path, trace_path);
// check the key_stats file
std::vector<std::string> k_stats = {"0 20 0 1 1.000000"};
file_path = output_path + "/test-merge-0-accessed_key_stats.txt";
CheckFileContent(k_stats, file_path, true);
// Check the access count distribution
std::vector<std::string> k_dist = {"access_count: 1 num: 1"};
file_path = output_path + "/test-merge-0-accessed_key_count_distribution.txt";
CheckFileContent(k_dist, file_path, true);
// Check the trace sequence
std::vector<std::string> k_sequence = {"1", "5", "2", "3", "4",
"0", "6", "7", "0"};
file_path = output_path + "/test-human_readable_trace.txt";
CheckFileContent(k_sequence, file_path, false);
// Check the prefix
std::vector<std::string> k_prefix = {"0 0 0 0.000000 0.000000 0x30"};
file_path = output_path + "/test-merge-0-accessed_key_prefix_cut.txt";
CheckFileContent(k_prefix, file_path, true);
// Check the time series
std::vector<std::string> k_series = {"5 1533000630 0"};
file_path = output_path + "/test-merge-0-time_series.txt";
CheckFileContent(k_series, file_path, false);
// Check the accessed key in whole key space
std::vector<std::string> k_whole_access = {"1 1"};
file_path = output_path + "/test-merge-0-whole_key_stats.txt";
CheckFileContent(k_whole_access, file_path, true);
// Check the whole key prefix cut
std::vector<std::string> k_whole_prefix = {"0 0x61", "1 0x62", "2 0x63",
"3 0x64", "4 0x65", "5 0x66"};
file_path = output_path + "/test-merge-0-whole_key_prefix_cut.txt";
CheckFileContent(k_whole_prefix, file_path, true);
// Check the overall qps
std::vector<std::string> all_qps = {"1 1 1 0 0 1 0 0 4"};
file_path = output_path + "/test-qps_stats.txt";
CheckFileContent(all_qps, file_path, true);
// Check the qps of Merge
std::vector<std::string> get_qps = {"1"};
file_path = output_path + "/test-merge-0-qps_stats.txt";
CheckFileContent(get_qps, file_path, true);
// Check the top k qps prefix cut
std::vector<std::string> top_qps = {"At time: 0 with QPS: 1",
"The prefix: 0x62 Access count: 1"};
file_path = output_path + "/test-merge-0-accessed_top_k_qps_prefix_cut.txt";
CheckFileContent(top_qps, file_path, true);
// Check the value size distribution
std::vector<std::string> value_dist = {
"Number_of_value_size_between 0 and 24 is: 1"};
file_path =
output_path + "/test-merge-0-accessed_value_size_distribution.txt";
CheckFileContent(value_dist, file_path, true);
}
// Test analyzing of SingleDelete
TEST_F(TraceAnalyzerTest, SingleDelete) {
std::string trace_path = test_path_ + "/trace";
std::string output_path = test_path_ + "/single_delete";
std::string file_path;
std::vector<std::string> paras = {"-analyze_single_delete"};
paras.push_back("-output_dir=" + output_path);
paras.push_back("-trace_path=" + trace_path);
paras.push_back("-key_space_dir=" + test_path_);
AnalyzeTrace(paras, output_path, trace_path);
// check the key_stats file
std::vector<std::string> k_stats = {"0 0 0 1 1.000000"};
file_path = output_path + "/test-single_delete-0-accessed_key_stats.txt";
CheckFileContent(k_stats, file_path, true);
// Check the access count distribution
std::vector<std::string> k_dist = {"access_count: 1 num: 1"};
file_path =
output_path + "/test-single_delete-0-accessed_key_count_distribution.txt";
CheckFileContent(k_dist, file_path, true);
// Check the trace sequence
std::vector<std::string> k_sequence = {"1", "5", "2", "3", "4",
"0", "6", "7", "0"};
file_path = output_path + "/test-human_readable_trace.txt";
CheckFileContent(k_sequence, file_path, false);
// Check the prefix
std::vector<std::string> k_prefix = {"0 0 0 0.000000 0.000000 0x30"};
file_path = output_path + "/test-single_delete-0-accessed_key_prefix_cut.txt";
CheckFileContent(k_prefix, file_path, true);
// Check the time series
std::vector<std::string> k_series = {"3 1533000630 0"};
file_path = output_path + "/test-single_delete-0-time_series.txt";
CheckFileContent(k_series, file_path, false);
// Check the accessed key in whole key space
std::vector<std::string> k_whole_access = {"3 1"};
file_path = output_path + "/test-single_delete-0-whole_key_stats.txt";
CheckFileContent(k_whole_access, file_path, true);
// Check the whole key prefix cut
std::vector<std::string> k_whole_prefix = {"0 0x61", "1 0x62", "2 0x63",
"3 0x64", "4 0x65", "5 0x66"};
file_path = output_path + "/test-single_delete-0-whole_key_prefix_cut.txt";
CheckFileContent(k_whole_prefix, file_path, true);
// Check the overall qps
std::vector<std::string> all_qps = {"1 1 1 1 0 1 0 0 5"};
file_path = output_path + "/test-qps_stats.txt";
CheckFileContent(all_qps, file_path, true);
// Check the qps of SingleDelete
std::vector<std::string> get_qps = {"1"};
file_path = output_path + "/test-single_delete-0-qps_stats.txt";
CheckFileContent(get_qps, file_path, true);
// Check the top k qps prefix cut
std::vector<std::string> top_qps = {"At time: 0 with QPS: 1",
"The prefix: 0x64 Access count: 1"};
file_path =
output_path + "/test-single_delete-0-accessed_top_k_qps_prefix_cut.txt";
CheckFileContent(top_qps, file_path, true);
}
// Test analyzing of delete
TEST_F(TraceAnalyzerTest, DeleteRange) {
std::string trace_path = test_path_ + "/trace";
std::string output_path = test_path_ + "/range_delete";
std::string file_path;
std::vector<std::string> paras = {"-analyze_range_delete"};
paras.push_back("-output_dir=" + output_path);
paras.push_back("-trace_path=" + trace_path);
paras.push_back("-key_space_dir=" + test_path_);
AnalyzeTrace(paras, output_path, trace_path);
// check the key_stats file
std::vector<std::string> k_stats = {"0 0 0 1 1.000000", "0 0 1 1 1.000000"};
file_path = output_path + "/test-range_delete-0-accessed_key_stats.txt";
CheckFileContent(k_stats, file_path, true);
// Check the access count distribution
std::vector<std::string> k_dist = {"access_count: 1 num: 2"};
file_path =
output_path + "/test-range_delete-0-accessed_key_count_distribution.txt";
CheckFileContent(k_dist, file_path, true);
// Check the trace sequence
std::vector<std::string> k_sequence = {"1", "5", "2", "3", "4",
"0", "6", "7", "0"};
file_path = output_path + "/test-human_readable_trace.txt";
CheckFileContent(k_sequence, file_path, false);
// Check the prefix
std::vector<std::string> k_prefix = {"0 0 0 0.000000 0.000000 0x30",
"1 1 1 1.000000 1.000000 0x65"};
file_path = output_path + "/test-range_delete-0-accessed_key_prefix_cut.txt";
CheckFileContent(k_prefix, file_path, true);
// Check the time series
std::vector<std::string> k_series = {"4 1533000630 0", "4 1533060100 1"};
file_path = output_path + "/test-range_delete-0-time_series.txt";
CheckFileContent(k_series, file_path, false);
// Check the accessed key in whole key space
std::vector<std::string> k_whole_access = {"4 1", "5 1"};
file_path = output_path + "/test-range_delete-0-whole_key_stats.txt";
CheckFileContent(k_whole_access, file_path, true);
// Check the whole key prefix cut
std::vector<std::string> k_whole_prefix = {"0 0x61", "1 0x62", "2 0x63",
"3 0x64", "4 0x65", "5 0x66"};
file_path = output_path + "/test-range_delete-0-whole_key_prefix_cut.txt";
CheckFileContent(k_whole_prefix, file_path, true);
// Check the overall qps
std::vector<std::string> all_qps = {"1 1 1 1 2 1 0 0 7"};
file_path = output_path + "/test-qps_stats.txt";
CheckFileContent(all_qps, file_path, true);
// Check the qps of DeleteRange
std::vector<std::string> get_qps = {"2"};
file_path = output_path + "/test-range_delete-0-qps_stats.txt";
CheckFileContent(get_qps, file_path, true);
// Check the top k qps prefix cut
std::vector<std::string> top_qps = {"At time: 0 with QPS: 2",
"The prefix: 0x65 Access count: 1",
"The prefix: 0x66 Access count: 1"};
file_path =
output_path + "/test-range_delete-0-accessed_top_k_qps_prefix_cut.txt";
CheckFileContent(top_qps, file_path, true);
}
// Test analyzing of Iterator
TEST_F(TraceAnalyzerTest, Iterator) {
std::string trace_path = test_path_ + "/trace";
std::string output_path = test_path_ + "/iterator";
std::string file_path;
std::vector<std::string> paras = {"-analyze_iterator"};
paras.push_back("-output_dir=" + output_path);
paras.push_back("-trace_path=" + trace_path);
paras.push_back("-key_space_dir=" + test_path_);
AnalyzeTrace(paras, output_path, trace_path);
// Check the output of Seek
// check the key_stats file
std::vector<std::string> k_stats = {"0 0 0 1 1.000000"};
file_path = output_path + "/test-iterator_Seek-0-accessed_key_stats.txt";
CheckFileContent(k_stats, file_path, true);
// Check the access count distribution
std::vector<std::string> k_dist = {"access_count: 1 num: 1"};
file_path =
output_path + "/test-iterator_Seek-0-accessed_key_count_distribution.txt";
CheckFileContent(k_dist, file_path, true);
// Check the trace sequence
std::vector<std::string> k_sequence = {"1", "5", "2", "3", "4",
"0", "6", "7", "0"};
file_path = output_path + "/test-human_readable_trace.txt";
CheckFileContent(k_sequence, file_path, false);
// Check the prefix
std::vector<std::string> k_prefix = {"0 0 0 0.000000 0.000000 0x30"};
file_path = output_path + "/test-iterator_Seek-0-accessed_key_prefix_cut.txt";
CheckFileContent(k_prefix, file_path, true);
// Check the time series
std::vector<std::string> k_series = {"6 1 0"};
file_path = output_path + "/test-iterator_Seek-0-time_series.txt";
CheckFileContent(k_series, file_path, false);
// Check the accessed key in whole key space
std::vector<std::string> k_whole_access = {"0 1"};
file_path = output_path + "/test-iterator_Seek-0-whole_key_stats.txt";
CheckFileContent(k_whole_access, file_path, true);
// Check the whole key prefix cut
std::vector<std::string> k_whole_prefix = {"0 0x61", "1 0x62", "2 0x63",
"3 0x64", "4 0x65", "5 0x66"};
file_path = output_path + "/test-iterator_Seek-0-whole_key_prefix_cut.txt";
CheckFileContent(k_whole_prefix, file_path, true);
// Check the overall qps
std::vector<std::string> all_qps = {"1 1 1 1 2 1 1 1 9"};
file_path = output_path + "/test-qps_stats.txt";
CheckFileContent(all_qps, file_path, true);
// Check the qps of Iterator_Seek
std::vector<std::string> get_qps = {"1"};
file_path = output_path + "/test-iterator_Seek-0-qps_stats.txt";
CheckFileContent(get_qps, file_path, true);
// Check the top k qps prefix cut
std::vector<std::string> top_qps = {"At time: 0 with QPS: 1",
"The prefix: 0x61 Access count: 1"};
file_path =
output_path + "/test-iterator_Seek-0-accessed_top_k_qps_prefix_cut.txt";
CheckFileContent(top_qps, file_path, true);
// Check the output of SeekForPrev
// check the key_stats file
k_stats = {"0 0 0 1 1.000000"};
file_path =
output_path + "/test-iterator_SeekForPrev-0-accessed_key_stats.txt";
CheckFileContent(k_stats, file_path, true);
// Check the access count distribution
k_dist = {"access_count: 1 num: 1"};
file_path =
output_path +
"/test-iterator_SeekForPrev-0-accessed_key_count_distribution.txt";
CheckFileContent(k_dist, file_path, true);
// Check the prefix
k_prefix = {"0 0 0 0.000000 0.000000 0x30"};
file_path =
output_path + "/test-iterator_SeekForPrev-0-accessed_key_prefix_cut.txt";
CheckFileContent(k_prefix, file_path, true);
// Check the time series
k_series = {"7 0 0"};
file_path = output_path + "/test-iterator_SeekForPrev-0-time_series.txt";
CheckFileContent(k_series, file_path, false);
// Check the accessed key in whole key space
k_whole_access = {"1 1"};
file_path = output_path + "/test-iterator_SeekForPrev-0-whole_key_stats.txt";
CheckFileContent(k_whole_access, file_path, true);
// Check the whole key prefix cut
k_whole_prefix = {"0 0x61", "1 0x62", "2 0x63", "3 0x64", "4 0x65", "5 0x66"};
file_path =
output_path + "/test-iterator_SeekForPrev-0-whole_key_prefix_cut.txt";
CheckFileContent(k_whole_prefix, file_path, true);
// Check the qps of Iterator_SeekForPrev
get_qps = {"1"};
file_path = output_path + "/test-iterator_SeekForPrev-0-qps_stats.txt";
CheckFileContent(get_qps, file_path, true);
// Check the top k qps prefix cut
top_qps = {"At time: 0 with QPS: 1", "The prefix: 0x62 Access count: 1"};
file_path = output_path +
"/test-iterator_SeekForPrev-0-accessed_top_k_qps_prefix_cut.txt";
CheckFileContent(top_qps, file_path, true);
}
} // namespace rocksdb
int main(int argc, char** argv) {
::testing::InitGoogleTest(&argc, argv);
return RUN_ALL_TESTS();
}
#endif // GFLAG
#else
#include <stdio.h>
int main(int /*argc*/, char** /*argv*/) {
fprintf(stderr, "Trace_analyzer test is not supported in ROCKSDB_LITE\n");
return 0;
}
#endif // !ROCKSDB_LITE return RUN_ALL_TESTS();
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