Commit Graph

163 Commits

Author SHA1 Message Date
Nathan VanBenschoten
37cd617b6b Add virtual Truncate method to Env
Summary:
This change adds a virtual `Truncate` method to `Env`, which truncates
the named file to the specified size. At the moment, this is only
supported for `MockEnv`, but other `Env's` could be extended to override
the method too. This is the same approach that methods like `LinkFile` and
`AreSameFile` have taken.

This is useful for any user of the in-memory `Env`. The implementation's
header is not exported, so before this change, it was impossible to
access it's already existing `Truncate` method.
Closes https://github.com/facebook/rocksdb/pull/3779

Differential Revision: D7785789

Pulled By: ajkr

fbshipit-source-id: 3bcdaeea7b7180529f7d9b496dc67b791a00bbf0
2018-04-26 21:12:51 -07:00
Andrew Kryczka
dfc61e7c24 initialize local variable for UBSAN in PosixEnv function
Summary:
It seems clear to me that the variable is initialized before line 492, but it wasn't clear to UBSAN. The failure was:

```
In file included from ./env/io_posix.h:14:0,
                 from env/env_posix.cc:44:
./include/rocksdb/env.h: In member function ‘virtual rocksdb::Status rocksdb::{anonymous}::PosixEnv::NewMemoryMappedFileBuffer(const string&, std::unique_ptr<rocksdb::MemoryMappedFileBuffer>*)’:
./include/rocksdb/env.h:822:36: error: ‘base’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
       : base(_base), length(_length) {}
                                    ^
env/env_posix.cc:482:11: note: ‘base’ was declared here
     void* base;
```

We can just initialize to nullptr to keep UBSAN happy.
Closes https://github.com/facebook/rocksdb/pull/3770

Differential Revision: D7756287

Pulled By: ajkr

fbshipit-source-id: 0f2efb9594e2d3a30706a4ca7e1d4a6328031bf2
2018-04-25 13:42:02 -07:00
Andrew Kryczka
a4fb1f8c04 Add crash-recovery correctness check to db_stress
Summary:
Previously, our `db_stress` tool held the expected state of the DB in-memory, so after crash-recovery, there was no way to verify data correctness. This PR adds an option, `--expected_values_file`, which specifies a file holding the expected values.

In black-box testing, the `db_stress` process can be killed arbitrarily, so updates to the `--expected_values_file` must be atomic. We achieve this by `mmap`ing the file and relying on `std::atomic<uint32_t>` for atomicity. Actually this doesn't provide a total guarantee on what we want as `std::atomic<uint32_t>` could, in theory, be translated into multiple stores surrounded by a mutex. We can verify our assumption by looking at `std::atomic::is_always_lock_free`.

For the `mmap`'d file, we didn't have an existing way to expose its contents as a raw memory buffer. This PR adds it in the `Env::NewMemoryMappedFileBuffer` function, and `MemoryMappedFileBuffer` class.

`db_crashtest.py` is updated to use an expected values file for black-box testing. On the first iteration (when the DB is created), an empty file is provided as `db_stress` will populate it when it runs. On subsequent iterations, that same filename is provided so `db_stress` can check the data is as expected on startup.
Closes https://github.com/facebook/rocksdb/pull/3629

Differential Revision: D7463144

Pulled By: ajkr

fbshipit-source-id: c8f3e82c93e045a90055e2468316be155633bd8b
2018-04-24 15:58:22 -07:00
Gabriel Wicke
090c78a0d7 Support lowering CPU priority of background threads
Summary:
Background activities like compaction can negatively affect
latency of higher-priority tasks like request processing. To avoid this,
rocksdb already lowers the IO priority of background threads on Linux
systems. While this takes care of typical IO-bound systems, it does not
help much when CPU (temporarily) becomes the bottleneck. This is
especially likely when using more expensive compression settings.

This patch adds an API to allow for lowering the CPU priority of
background threads, modeled on the IO priority API. Benchmarks (see
below) show significant latency and throughput improvements when CPU
bound. As a result, workloads with some CPU usage bursts should benefit
from lower latencies at a given utilization, or should be able to push
utilization higher at a given request latency target.

A useful side effect is that compaction CPU usage is now easily visible
in common tools, allowing for an easier estimation of the contribution
of compaction vs. request processing threads.

As with IO priority, the implementation is limited to Linux, degrading
to a no-op on other systems.
Closes https://github.com/facebook/rocksdb/pull/3763

Differential Revision: D7740096

Pulled By: gwicke

fbshipit-source-id: e5d32373e8dc403a7b0c2227023f9ce4f22b413c
2018-04-24 08:41:51 -07:00
Yi Wu
2e72a5899b Disable EnvPosixTest::FilePermission
Summary:
The test is flaky in our CI but could not be reproduce manually on the same CI host. Disabling it.
Closes https://github.com/facebook/rocksdb/pull/3753

Differential Revision: D7716320

Pulled By: yiwu-arbug

fbshipit-source-id: 6bed3b05880c1d24e8dc86bc970e5181bc98fb45
2018-04-20 15:42:42 -07:00
Andrew Kryczka
3cea61392f include thread-pool priority in thread names
Summary:
Previously threads were named "rocksdb:bg\<index in thread pool\>", so the first thread in all thread pools would be named "rocksdb:bg0". Users want to be able to distinguish threads used for flush (high-pri) vs regular compaction (low-pri) vs compaction to bottom-level (bottom-pri). So I changed the thread naming convention to include the thread-pool priority.
Closes https://github.com/facebook/rocksdb/pull/3702

Differential Revision: D7581415

Pulled By: ajkr

fbshipit-source-id: ce04482b6acd956a401ef22dc168b84f76f7d7c1
2018-04-18 17:27:56 -07:00
Zhongyi Xie
954b496b3f fix memory leak in two_level_iterator
Summary:
this PR fixes a few failed contbuild:
1. ASAN memory leak in Block::NewIterator (table/block.cc:429). the proper destruction of first_level_iter_ and second_level_iter_ of two_level_iterator.cc is missing from the code after the refactoring in https://github.com/facebook/rocksdb/pull/3406
2. various unused param errors introduced by https://github.com/facebook/rocksdb/pull/3662
3. updated comment for `ForceReleaseCachedEntry` to emphasize the use of `force_erase` flag.
Closes https://github.com/facebook/rocksdb/pull/3718

Reviewed By: maysamyabandeh

Differential Revision: D7621192

Pulled By: miasantreble

fbshipit-source-id: 476c94264083a0730ded957c29de7807e4f5b146
2018-04-15 17:26:26 -07:00
Xiaofei Du
a0102aa6d7 Make database files' permissions configurable
Summary: Closes https://github.com/facebook/rocksdb/pull/3709

Differential Revision: D7610227

Pulled By: xiaofeidu008

fbshipit-source-id: 88a52f0f9f96e2195fccde995cf9760b785e9f07
2018-04-13 13:13:04 -07:00
Steven Fackler
1f5457ef21 Merge raw and shared pointer log method impls
Summary:
Calling rocksdb::Log, rocksdb::Info, etc with a `shared_ptr<Logger>` should behave the same as calling those functions with a `Logger *`. This PR achieves it by making the `shared_ptr<Logger>` versions delegate to the `Logger *` versions.

Closes #3689
Closes https://github.com/facebook/rocksdb/pull/3710

Differential Revision: D7595557

Pulled By: ajkr

fbshipit-source-id: 64dd7f20fd42dc821bac7b8032705c35b483e00d
2018-04-13 11:12:54 -07:00
David Lai
3be9b36453 comment unused parameters to turn on -Wunused-parameter flag
Summary:
This PR comments out the rest of the unused arguments which allow us to turn on the -Wunused-parameter flag. This is the second part of a codemod relating to https://github.com/facebook/rocksdb/pull/3557.
Closes https://github.com/facebook/rocksdb/pull/3662

Differential Revision: D7426121

Pulled By: Dayvedde

fbshipit-source-id: 223994923b42bd4953eb016a0129e47560f7e352
2018-04-12 17:59:16 -07:00
Bruce Mitchener
a3a3f5497c Fix some typos in comments and docs.
Summary: Closes https://github.com/facebook/rocksdb/pull/3568

Differential Revision: D7170953

Pulled By: siying

fbshipit-source-id: 9cfb8dd88b7266da920c0e0c1e10fb2c5af0641c
2018-03-08 10:27:25 -08:00
Bruce Mitchener
0de710f5b8 Use nullptr instead of NULL / 0 more consistently.
Summary: Closes https://github.com/facebook/rocksdb/pull/3569

Differential Revision: D7170968

Pulled By: yiwu-arbug

fbshipit-source-id: 308a6b7dd358a04fd9a7de3d927bfd8abd57d348
2018-03-07 12:42:12 -08:00
amytai
0a3db28d98 Disallow compactions if there isn't enough free space
Summary:
This diff handles cases where compaction causes an ENOSPC error.
This does not handle corner cases where another background job is started while compaction is running, and the other background job triggers ENOSPC, although we do allow the user to provision for these background jobs with SstFileManager::SetCompactionBufferSize.
It also does not handle the case where compaction has finished and some other background job independently triggers ENOSPC.

Usage: Functionality is inside SstFileManager. In particular, users should set SstFileManager::SetMaxAllowedSpaceUsage, which is the reference highwatermark for determining whether to cancel compactions.
Closes https://github.com/facebook/rocksdb/pull/3449

Differential Revision: D7016941

Pulled By: amytai

fbshipit-source-id: 8965ab8dd8b00972e771637a41b4e6c645450445
2018-03-06 16:27:54 -08:00
Fosco Marotto
d518fe1da6 uint64_t and size_t changes to compile for iOS
Summary:
In attempting to build a static lib for use in iOS, I ran in to lots of type errors between uint64_t and size_t.  This PR contains the changes I made to get `TARGET_OS=IOS make static_lib` to succeed while also getting Xcode to build successfully with the resulting `librocksdb.a` library imported.

This also compiles for me on macOS and tests fine, but I'm really not sure if I made the correct decisions about where to `static_cast` and where to change types.

Also up for discussion: is iOS worth supporting?  Getting the static lib is just part one, we aren't providing any bridging headers or wrappers like the ObjectiveRocks project, it won't be a great experience.
Closes https://github.com/facebook/rocksdb/pull/3503

Differential Revision: D7106457

Pulled By: gfosco

fbshipit-source-id: 82ac2073de7e1f09b91f6b4faea91d18bd311f8e
2018-03-06 12:43:51 -08:00
Dmitri Smirnov
c364eb42b5 Windows cumulative patch
Summary:
This patch addressed several issues.
  Portability including db_test std::thread -> port::Thread Cc: @
  and %z to ROCKSDB portable macro. Cc: maysamyabandeh

  Implement Env::AreFilesSame

  Make the implementation of file unique number more robust

  Get rid of C-runtime and go directly to Windows API when dealing
  with file primitives.

  Implement GetSectorSize() and aling unbuffered read on the value if
  available.

  Adjust Windows Logger for the new interface, implement CloseImpl() Cc: anand1976

  Fix test running script issue where $status var was of incorrect scope
  so the failures were swallowed and not reported.

  DestroyDB() creates a logger and opens a LOG file in the directory
  being cleaned up. This holds a lock on the folder and the cleanup is
  prevented. This fails one of the checkpoin tests. We observe the same in production.
  We close the log file in this change.

 Fix DBTest2.ReadAmpBitmapLiveInCacheAfterDBClose failure where the test
 attempts to open a directory with NewRandomAccessFile which does not
 work on Windows.
  Fix DBTest.SoftLimit as it is dependent on thread timing. CC: yiwu-arbug
Closes https://github.com/facebook/rocksdb/pull/3552

Differential Revision: D7156304

Pulled By: siying

fbshipit-source-id: 43db0a757f1dfceffeb2b7988043156639173f5b
2018-03-06 11:57:43 -08:00
Andrew Kryczka
5d68243e61 Comment out unused variables
Summary:
Submitting on behalf of another employee.
Closes https://github.com/facebook/rocksdb/pull/3557

Differential Revision: D7146025

Pulled By: ajkr

fbshipit-source-id: 495ca5db5beec3789e671e26f78170957704e77e
2018-03-05 13:13:41 -08:00
Zhongyi Xie
92b1a68d87 fix FreeBSD build
Summary:
Currently FreeBSD build is broken in master and possibly some previous releases due to unrecognized symbol `O_DIRECT`.
This PR will fix the build on FreeBSD
Closes https://github.com/facebook/rocksdb/pull/3560

Differential Revision: D7148646

Pulled By: miasantreble

fbshipit-source-id: 95b6c3d310fa531267c086b2cd40a5ab1c042b5a
2018-03-05 11:12:28 -08:00
Anand Ananthabhotla
dfbe52e099 Fix the Logger::Close() and DBImpl::Close() design pattern
Summary:
The recent Logger::Close() and DBImpl::Close() implementation rely on
calling the CloseImpl() virtual function from the destructor, which will
not work. Refactor the implementation to have a private close helper
function in derived classes that can be called by both CloseImpl() and
the destructor.
Closes https://github.com/facebook/rocksdb/pull/3528

Reviewed By: gfosco

Differential Revision: D7049303

Pulled By: anand1976

fbshipit-source-id: 76a64cbf403209216dfe4864ecf96b5d7f3db9f4
2018-02-23 13:57:26 -08:00
Igor Sugak
aba3409740 Back out "[codemod] - comment out unused parameters"
Reviewed By: igorsugak

fbshipit-source-id: 4a93675cc1931089ddd574cacdb15d228b1e5f37
2018-02-22 12:43:17 -08:00
David Lai
f4a030ce81 - comment out unused parameters
Reviewed By: everiq, igorsugak

Differential Revision: D7046710

fbshipit-source-id: 8e10b1f1e2aecebbfb229c742e214db887e5a461
2018-02-22 09:44:23 -08:00
jsteemann
4e7a182d09 Several small "fixes"
Summary:
- removed a few unneeded variables
- fused some variable declarations and their assignments
- fixed right-trimming code in string_util.cc to not underflow
- simplifed an assertion
- move non-nullptr check assertion before dereferencing of that pointer
- pass an std::string function parameter by const reference instead of by value (avoiding potential copy)
Closes https://github.com/facebook/rocksdb/pull/3507

Differential Revision: D7004679

Pulled By: sagar0

fbshipit-source-id: 52944952d9b56dfcac3bea3cd7878e315bb563c4
2018-02-15 16:57:37 -08:00
Tamir Duberstein
cd5092e168 Suppress unused warnings
Summary:
- Use `__unused__` everywhere
- Suppress unused warnings in Release mode
    + This currently affects non-MSVC builds (e.g. mingw64).
Closes https://github.com/facebook/rocksdb/pull/3448

Differential Revision: D6885496

Pulled By: miasantreble

fbshipit-source-id: f2f6adacec940cc3851a9eee328fafbf61aad211
2018-02-02 12:27:07 -08:00
Anand Ananthabhotla
d0f1b49ab6 Add a Close() method to DB to return status when closing a db
Summary:
Currently, the only way to close an open DB is to destroy the DB
object. There is no way for the caller to know the status. In one
instance, the destructor encountered an error due to failure to
close a log file on HDFS. In order to prevent silent failures, we add
DB::Close() that calls CloseImpl() which must be implemented by its
descendants.
The main failure point in the destructor is closing the log file. This
patch also adds a Close() entry point to Logger in order to get status.
When DBOptions::info_log is allocated and owned by the DBImpl, it is
explicitly closed by DBImpl::CloseImpl().
Closes https://github.com/facebook/rocksdb/pull/3348

Differential Revision: D6698158

Pulled By: anand1976

fbshipit-source-id: 9468e2892553eb09c4c41b8723f590c0dbd8ab7d
2018-01-16 11:08:57 -08:00
Yi Wu
bbcd3b0bd2 Suppress valgrind "unimplemented functionality" error
Summary:
Add ROCKSDB_VALGRIND_RUN macro and suppress false-positive "unimplemented functionality" throw by valgrind for steam hints.

Another approach would be add a valgrind suppress file. Valgrind is suppose to print the suppression when given "--gen-suppressions=all" param, which is suppose to be the content for the suppression file. But it doesn't print.
Closes https://github.com/facebook/rocksdb/pull/3174

Differential Revision: D6338786

Pulled By: yiwu-arbug

fbshipit-source-id: 3559efa5f3b92d40d09ad6ac82bc7b59f86c75aa
2017-11-15 14:28:34 -08:00
Dmitri Smirnov
f8e2db0717 Fix crashes, address test issues and adjust windows test script
Summary:
Add per-exe execution capability
  Add fix parsing of groups/tests
  Add timer test exclusion

 Fix unit tests
  Ifdef threadpool specific tests that do not pass on Vista threadpool.
  Remove spurious outout from prefix_test so test case listing works
  properly.
  Fix not using standard test directories results in file creation errors
  in sst_dump_test.

  BlobDb fixes:
    In C++ end() iterators can not be dereferenced. They are not valid.
	When deleting blob_db_ set it to nullptr before any other code executes.
	Not fixed:. On Windows you can not delete a file while it is open.
	[ RUN      ] BlobDBTest.ReadWhileGC
	d:\dev\rocksdb\rocksdb\utilities\blob_db\blob_db_test.cc(75): error: DestroyBlobDB(dbname_, options, bdb_options)
	IO error: Failed to delete: d:/mnt/db\testrocksdb-17444/blob_db_test/blob_dir/000001.blob: Permission denied
	d:\dev\rocksdb\rocksdb\utilities\blob_db\blob_db_test.cc(75): error: DestroyBlobDB(dbname_, options, bdb_options)
	IO error: Failed to delete: d:/mnt/db\testrocksdb-17444/blob_db_test/blob_dir/000001.blob: Permission denied

  write_batch
    Should not call front() if there is a chance the container is empty
Closes https://github.com/facebook/rocksdb/pull/3152

Differential Revision: D6293274

Pulled By: sagar0

fbshipit-source-id: 318c3717c22087fae13b18715dffb24565dbd956
2017-11-10 10:41:57 -08:00
Shaohua Li
eefd75a228 Stream
Summary:
Add a simple policy for NVMe write time life hint
Closes https://github.com/facebook/rocksdb/pull/3095

Differential Revision: D6298030

Pulled By: shligit

fbshipit-source-id: 9a72a42e32e92193af11599eb71f0cf77448e24d
2017-11-10 09:26:24 -08:00
Shaohua Li
33c7d4ccd9 Make writable_file_max_buffer_size dynamic
Summary:
The DBOptions::writable_file_max_buffer_size can be changed dynamically.
Closes https://github.com/facebook/rocksdb/pull/3053

Differential Revision: D6152720

Pulled By: shligit

fbshipit-source-id: aa0c0cfcfae6a54eb17faadb148d904797c68681
2017-10-31 13:56:35 -07:00
Prashant D
c1be8d86c6 Fix removed structurally dead return statement
Summary:
There seems to be a typo mistake in env ReuseWritableFile func
where status is being returned twice.
Closes https://github.com/facebook/rocksdb/pull/3099

Differential Revision: D6196204

Pulled By: ajkr

fbshipit-source-id: abb6e3e1c1e772dd485fc39e7f1b9d502fa188fe
2017-10-31 01:26:13 -07:00
zach shipko
386a57e6ef Fix build on OpenBSD
Summary:
A few simple changes to allow RocksDB to be built on OpenBSD. Let me know if any further changes are needed.
Closes https://github.com/facebook/rocksdb/pull/3061

Differential Revision: D6138800

Pulled By: ajkr

fbshipit-source-id: a13a17b5dc051e6518bd56a8c5efd1d24dd81b0c
2017-10-24 13:27:38 -07:00
Dmitri Smirnov
d2a65c59e1 Fix unused var warnings in Release mode
Summary:
MSVC does not support unused attribute at this time. A separate assignment line fixes the issue probably by being counted as usage for MSVC and it no longer complains about unused var.
Closes https://github.com/facebook/rocksdb/pull/3048

Differential Revision: D6126272

Pulled By: maysamyabandeh

fbshipit-source-id: 4907865db45fd75a39a15725c0695aaa17509c1f
2017-10-23 14:27:04 -07:00
Dmitri Smirnov
ebab2e2d42 Enable MSVC W4 with a few exceptions. Fix warnings and bugs
Summary: Closes https://github.com/facebook/rocksdb/pull/3018

Differential Revision: D6079011

Pulled By: yiwu-arbug

fbshipit-source-id: 988a721e7e7617967859dba71d660fc69f4dff57
2017-10-19 10:57:12 -07:00
Andrew Kryczka
4708a6875c Repair DBs with trailing slash in name
Summary:
Problem:

- `DB::SanitizeOptions` strips trailing slash from `wal_dir` but not `dbname`
- We check whether `wal_dir` and `dbname` refer to the same directory using string equality: https://github.com/facebook/rocksdb/blob/master/db/repair.cc#L258
- Providing `dbname` with trailing slash causes default `wal_dir` to be misidentified as a separate directory.
- Then the repair tries to add all SST files to the `VersionEdit` twice (once for `dbname` dir, once for `wal_dir`) and fails with coredump.

Solution:

- Add a new `Env` function, `AreFilesSame`, which uses device and inode number to check whether files are the same. It's currently only implemented in `PosixEnv`.
- Migrate repair to use `AreFilesSame` to check whether `dbname` and `wal_dir` are same. If unsupported, falls back to string comparison.
Closes https://github.com/facebook/rocksdb/pull/2827

Differential Revision: D5761349

Pulled By: ajkr

fbshipit-source-id: c839d548678b742af1166d60b09abd94e5476238
2017-09-22 12:42:22 -07:00
Andrew Kryczka
cc01985db0 Introduce bottom-pri thread pool for large universal compactions
Summary:
When we had a single thread pool for compactions, a thread could be busy for a long time (minutes) executing a compaction involving the bottom level. In multi-instance setups, the entire thread pool could be consumed by such bottom-level compactions. Then, top-level compactions (e.g., a few L0 files) would be blocked for a long time ("head-of-line blocking"). Such top-level compactions are critical to prevent compaction stalls as they can quickly reduce number of L0 files / sorted runs.

This diff introduces a bottom-priority queue for universal compactions including the bottom level. This alleviates the head-of-line blocking situation for fast, top-level compactions.

- Added `Env::Priority::BOTTOM` thread pool. This feature is only enabled if user explicitly configures it to have a positive number of threads.
- Changed `ThreadPoolImpl`'s default thread limit from one to zero. This change is invisible to users as we call `IncBackgroundThreadsIfNeeded` on the low-pri/high-pri pools during `DB::Open` with values of at least one. It is necessary, though, for bottom-pri to start with zero threads so the feature is disabled by default.
- Separated `ManualCompaction` into two parts in `PrepickedCompaction`. `PrepickedCompaction` is used for any compaction that's picked outside of its execution thread, either manual or automatic.
- Forward universal compactions involving last level to the bottom pool (worker thread's entry point is `BGWorkBottomCompaction`).
- Track `bg_bottom_compaction_scheduled_` so we can wait for bottom-level compactions to finish. We don't count them against the background jobs limits. So users of this feature will get an extra compaction for free.
Closes https://github.com/facebook/rocksdb/pull/2580

Differential Revision: D5422916

Pulled By: ajkr

fbshipit-source-id: a74bd11f1ea4933df3739b16808bb21fcd512333
2017-08-03 15:43:29 -07:00
Siying Dong
21696ba502 Replace dynamic_cast<>
Summary:
Replace dynamic_cast<> so that users can choose to build with RTTI off, so that they can save several bytes per object, and get tiny more memory available.
Some nontrivial changes:
1. Add Comparator::GetRootComparator() to get around the internal comparator hack
2. Add the two experiemental functions to DB
3. Add TableFactory::GetOptionString() to avoid unnecessary casting to get the option string
4. Since 3 is done, move the parsing option functions for table factory to table factory files too, to be symmetric.
Closes https://github.com/facebook/rocksdb/pull/2645

Differential Revision: D5502723

Pulled By: siying

fbshipit-source-id: fd13cec5601cf68a554d87bfcf056f2ffa5fbf7c
2017-07-28 16:27:16 -07:00
Sagar Vemuri
72502cf227 Revert "comment out unused parameters"
Summary:
This reverts the previous commit 1d7048c598, which broke the build.

Did a `git revert 1d7048c`.
Closes https://github.com/facebook/rocksdb/pull/2627

Differential Revision: D5476473

Pulled By: sagar0

fbshipit-source-id: 4756ff5c0dfc88c17eceb00e02c36176de728d06
2017-07-21 18:26:26 -07:00
Victor Gao
1d7048c598 comment out unused parameters
Summary: This uses `clang-tidy` to comment out unused parameters (in functions, methods and lambdas) in fbcode. Cases that the tool failed to handle are fixed manually.

Reviewed By: igorsugak

Differential Revision: D5454343

fbshipit-source-id: 5dee339b4334e25e963891b519a5aa81fbf627b2
2017-07-21 14:57:44 -07:00
Siying Dong
3c327ac2d0 Change RocksDB License
Summary: Closes https://github.com/facebook/rocksdb/pull/2589

Differential Revision: D5431502

Pulled By: siying

fbshipit-source-id: 8ebf8c87883daa9daa54b2303d11ce01ab1f6f75
2017-07-15 16:11:23 -07:00
Aaron Gao
43e4eef77f remove unnecessary fadvise
Summary:
We has to remove this line because previously it is only called when use_os_buffer = false. But now we have direct io to replace it.
Closes https://github.com/facebook/rocksdb/pull/2573

Differential Revision: D5412824

Pulled By: yiwu-arbug

fbshipit-source-id: 81f3f0cdf94566bfc09ef2ff123e40cddbe36b36
2017-07-12 18:14:41 -07:00
Andrew Kryczka
33042573db Fix GetCurrentTime() initialization for valgrind
Summary:
Valgrind had false positive complaints about the initialization pattern for `GetCurrentTime()`'s argument in #2480. We can instead have the client initialize the time variable before calling `GetCurrentTime()`, and have `GetCurrentTime()` promise to only overwrite it in success case.
Closes https://github.com/facebook/rocksdb/pull/2526

Differential Revision: D5358689

Pulled By: ajkr

fbshipit-source-id: 857b189f24c19196f6bb299216f3e23e7bc4be42
2017-07-05 12:12:00 -07:00
Ewout Prangsma
51778612c9 Encryption at rest support
Summary:
This PR adds support for encrypting data stored by RocksDB when written to disk.

It adds an `EncryptedEnv` override of the `Env` class with matching overrides for sequential&random access files.
The encryption itself is done through a configurable `EncryptionProvider`. This class creates is asked to create `BlockAccessCipherStream` for a file. This is where the actual encryption/decryption is being done.
Currently there is a Counter mode implementation of `BlockAccessCipherStream` with a `ROT13` block cipher (NOTE the `ROT13` is for demo purposes only!!).

The Counter operation mode uses an initial counter & random initialization vector (IV).
Both are created randomly for each file and stored in a 4K (default size) block that is prefixed to that file. The `EncryptedEnv` implementation is such that clients of the `Env` class do not see this prefix (nor data, nor in filesize).
The largest part of the prefix block is also encrypted, and there is room left for implementation specific settings/values/keys in there.

To test the encryption, the `DBTestBase` class has been extended to consider a new environment variable called `ENCRYPTED_ENV`. If set, the test will setup a encrypted instance of the `Env` class to use for all tests.
Typically you would run it like this:

```
ENCRYPTED_ENV=1 make check_some
```

There is also an added test that checks that some data inserted into the database is or is not "visible" on disk. With `ENCRYPTED_ENV` active it must not find plain text strings, with `ENCRYPTED_ENV` unset, it must find the plain text strings.
Closes https://github.com/facebook/rocksdb/pull/2424

Differential Revision: D5322178

Pulled By: sdwilsh

fbshipit-source-id: 253b0a9c2c498cc98f580df7f2623cbf7678a27f
2017-06-26 16:56:24 -07:00
Siying Dong
857e9960be Improve the error message for I/O related errors.
Summary:
Force people to write something other than file name while returning status for IOError.
Closes https://github.com/facebook/rocksdb/pull/2493

Differential Revision: D5321309

Pulled By: siying

fbshipit-source-id: 38bcf6c19e80831cd3e300a047e975cbb131d822
2017-06-26 12:57:01 -07:00
Anirban Rahut
7a270069b3 GNU C library for struct tm has 2 additional fields.
Summary:
initialize 2 additional fields tm_gmtoff and tm_zone,
otherwise under strict warnings for initialization, we get errors
in myrocks.
Closes https://github.com/facebook/rocksdb/pull/2439

Differential Revision: D5229013

Pulled By: yiwu-arbug

fbshipit-source-id: 9fc1615a1919656f36064791706ed41e10e9db84
2017-06-13 04:41:35 -07:00
Mike Kolupaev
bc09c8a0db Fix crash in PosixWritableFile::Close() when fstat() fails
Summary:
We had a crash in this code: `fstat()` failed; `file_stats` contained garbage, in particular `file_stats.st_blksize == 6`; the expression `file_stats.st_blocks / (file_stats.st_blksize / 512)` divided by zero.
Closes https://github.com/facebook/rocksdb/pull/2420

Differential Revision: D5216110

Pulled By: al13n321

fbshipit-source-id: 6d8fc5e7c4f98c1139e68c7829ebdbac68b0fce0
2017-06-08 19:56:22 -07:00
Yi Wu
6d0f22e42f Fix mock_env.cc uninitialized variable
Summary:
Mingw is complaining about uninitialized variable in mock_env.cc. e.g. https://travis-ci.org/facebook/rocksdb/jobs/240132276
The fix is to initialize the variable.
Closes https://github.com/facebook/rocksdb/pull/2428

Differential Revision: D5211306

Pulled By: yiwu-arbug

fbshipit-source-id: ee02bf0327dcea8590a2aa087f0176fecaf8621c
2017-06-08 17:41:59 -07:00
Maysam Yabandeh
d4f7731b61 fix travis error with init time in mockenv
Summary:
/home/travis/build/facebook/rocksdb/env/mock_env.cc: In member function ‘virtual void rocksdb::{anonymous}::TestMemLogger::Logv(const char*, va_list)’:
/home/travis/build/facebook/rocksdb/env/mock_env.cc:391:53: error: ‘t.tm::tm_year’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
                     static_cast<int>(now_tv.tv_usec));
Closes https://github.com/facebook/rocksdb/pull/2418

Differential Revision: D5193597

Pulled By: maysamyabandeh

fbshipit-source-id: 8801a3ef27f33eb419d534f7de747702cdf504a0
2017-06-08 10:41:18 -07:00
Maysam Yabandeh
550a1df72c Fix clang errors by asserting the precondition
Summary:
USE_CLANG=1 make -j32 analyze
The two errors would disappear after the assertion.
Closes https://github.com/facebook/rocksdb/pull/2416

Differential Revision: D5193526

Pulled By: maysamyabandeh

fbshipit-source-id: 16a21f18f68023f862764dd3ab9e00ca60b0eefa
2017-06-06 12:56:52 -07:00
Maysam Yabandeh
5a9b4d7435 Retire memenv https://github.com/facebook/rocksdb/pull/2082
Summary:
This is a manual commit of this PR:
Retire InMemoryEnv in favor of MockEnv #2082
With MockEnv doing the same yet being more mature, InMemoryEnv is redundant.

Reviewed By: IslamAbdelRahman

Differential Revision: D5162323

fbshipit-source-id: 59fd0082a891dc99cc531e4da9d68bf891eae3f5
2017-06-01 15:41:20 -07:00
Andrew Kryczka
6cc9aef162 New API for background work in single thread pool
Summary:
Previously users could set `max_background_flushes=0` to force rocksdb to use a single thread pool for both background flushes and compactions. That'll no longer be possible since I'm going to deprecate `max_background_flushes` and `max_background_compactions` in favor of a single option. This diff introduces a new way to force a single thread pool: when high-pri pool has zero threads, all background jobs will be submitted to low-pri pool.

Note the majority of the code change is adding `Env::GetBackgroundThreads()`, which is necessary to check whether the user has provided a zero-sized thread pool.
Closes https://github.com/facebook/rocksdb/pull/2204

Differential Revision: D4936256

Pulled By: ajkr

fbshipit-source-id: 929a07a0c0705f7766f5339cd013ff74e90d6e01
2017-05-23 11:12:27 -07:00
Aaron Gao
3e86c0f07c disable direct reads for log and manifest and add direct io to tests
Summary:
Disable direct reads for log and manifest. Direct reads should not affect sequential_file
Also add kDirectIO for option_config_ in db_test_util
Closes https://github.com/facebook/rocksdb/pull/2337

Differential Revision: D5100261

Pulled By: lightmark

fbshipit-source-id: 0ebfd13b93fa1b8f9acae514ac44f8125a05868b
2017-05-22 18:41:28 -07:00
Anirban Rahut
d85ff4953c Blob storage pr
Summary:
The final pull request for Blob Storage.
Closes https://github.com/facebook/rocksdb/pull/2269

Differential Revision: D5033189

Pulled By: yiwu-arbug

fbshipit-source-id: 6356b683ccd58cbf38a1dc55e2ea400feecd5d06
2017-05-10 15:14:44 -07:00
Aaron Gao
6b99dbe049 fix memory alignment with logical sector size
Summary:
we align the buffer with logical sector size and should not test it with page size, which is usually 4k.
Closes https://github.com/facebook/rocksdb/pull/2245

Differential Revision: D5001842

Pulled By: lightmark

fbshipit-source-id: a7135fcf6351c6db363e8908956b1e193a4a6291
2017-05-04 01:30:13 -07:00
Siying Dong
a2b05210ef Make PosixLogger::flush_pending_ atomic
Summary:
TSAN sometimes complaints data race of PosixLogger::flush_pending_. Make it atomic.
Closes https://github.com/facebook/rocksdb/pull/2231

Differential Revision: D4973397

Pulled By: siying

fbshipit-source-id: 571e886e3eca3231705919d573e250c1c1ec3764
2017-04-28 17:07:56 -07:00
Siying Dong
d616ebea23 Add GPLv2 as an alternative license.
Summary: Closes https://github.com/facebook/rocksdb/pull/2226

Differential Revision: D4967547

Pulled By: siying

fbshipit-source-id: dd3b58ae1e7a106ab6bb6f37ab5c88575b125ab4
2017-04-27 18:06:12 -07:00
Aaron Gao
6616e4d629 add prefetch to PosixRandomAccessFile in buffered io
Summary:
Every time after a compaction/flush finish, we issue user reads to put the table into block cache which includes a couple of IO that read footer, index blocks, meta block, etc. So we implement Prefetch here to reduce IO.
Closes https://github.com/facebook/rocksdb/pull/2196

Differential Revision: D4931782

Pulled By: lightmark

fbshipit-source-id: 5a13d58dcab209964352322217193bbf7ff78149
2017-04-26 14:47:23 -07:00
Aaron Gao
3b4d1b7a44 add <sys/sysmacros.h> to avoid warning with glibc 2.25
Summary:
https://github.com/facebook/rocksdb/issues/2152
Closes https://github.com/facebook/rocksdb/pull/2208

Differential Revision: D4945577

Pulled By: lightmark

fbshipit-source-id: 4e679150f2c9443d3be0b6008b26b65fabbda75a
2017-04-26 01:26:55 -07:00
Tomas Kolda
04d58970cb AIX and Solaris Sparc Support
Summary:
Replacement of #2147

The change was squashed due to a lot of conflicts.
Closes https://github.com/facebook/rocksdb/pull/2194

Differential Revision: D4929799

Pulled By: siying

fbshipit-source-id: 5cd49c254737a1d5ac13f3c035f128e86524c581
2017-04-21 20:48:04 -07:00
Aaron Gao
0716527341 remove warning
Summary:
st_blocks shows 16 though the right value is 8. This happens occasionally which seems a bug.
Closes https://github.com/facebook/rocksdb/pull/2160

Differential Revision: D4893542

Pulled By: lightmark

fbshipit-source-id: 68e832586b58bbc6162efbe83ce273f1570d5be3
2017-04-14 18:56:14 -07:00
Aaron Gao
44fa8ece9b change use_direct_writes to use_direct_io_for_flush_and_compaction
Summary:
Replace Options::use_direct_writes with Options::use_direct_io_for_flush_and_compaction
Now if Options::use_direct_io_for_flush_and_compaction = true, we will enable direct io for both reads and writes for flush and compaction job. Whereas Options::use_direct_reads controls user reads like iterator and Get().
Closes https://github.com/facebook/rocksdb/pull/2117

Differential Revision: D4860912

Pulled By: lightmark

fbshipit-source-id: d93575a8a5e780cf7e40797287edc425ee648c19
2017-04-13 16:12:04 -07:00
Aaron Gao
13b50358fb add space for buggy kernel warning
Summary:
add the missing space
Closes https://github.com/facebook/rocksdb/pull/2150

Differential Revision: D4880696

Pulled By: lightmark

fbshipit-source-id: a4e0ad6a8ea45d6469d3f6c8514fdeb4cf10aaf5
2017-04-13 16:12:04 -07:00
Aaron Gao
ba7da434ae fix db_stress crash caused by buggy kernel warning
Summary:
filter the warning out and only print it once.
Closes https://github.com/facebook/rocksdb/pull/2137

Differential Revision: D4870925

Pulled By: lightmark

fbshipit-source-id: 91b363ce7f70bce88b0780337f408fc4649139b8
2017-04-11 16:56:59 -07:00
Nikhil Benesch
72fc1e9d07 avoid non-existent O_DIRECT on OpenBSD
Summary:
OpenBSD doesn't have `O_DIRECT`, so avoid it. (RocksDB compiles successfully on
OpenBSD with this patch.)
Closes https://github.com/facebook/rocksdb/pull/2106

Differential Revision: D4847833

Pulled By: siying

fbshipit-source-id: 214b785
2017-04-07 10:39:15 -07:00
Aaron Gao
9e72939029 only FALLOC_FL_PUNCH_HOLE when ftruncate is buggy
Summary:
In RocksDB, we sometimes preallocate the estimated space for a file to have better perf with fallocate (if supported). Usually it is a little bit bigger than the real resulting file size. At this time, we have to let the Filesystem reclaim the space not used.

Ideally, calling ftruncate to truncate the file to its real size should be enough. HOWEVER, it isn't on tmpfs, which we witness in our case, with some buggy kernel version. ftruncate a file with preallocated space doesn't change number of the blocks used by the file, which means the space not used by the file is not returned to the filesystems. So in this case we need fallocate with FALLOC_FL_PUNCH_HOLE to explicitly reclaim the used blocks. It is a hack to cope with the kernel bug and usually we should not need it.
Closes https://github.com/facebook/rocksdb/pull/2102

Differential Revision: D4848934

Pulled By: lightmark

fbshipit-source-id: f1b40b5
2017-04-06 18:25:03 -07:00
Siying Dong
d2dce5611a Move some files under util/ to separate dirs
Summary:
Move some files under util/ to new directories env/, monitoring/ options/ and cache/
Closes https://github.com/facebook/rocksdb/pull/2090

Differential Revision: D4833681

Pulled By: siying

fbshipit-source-id: 2fd8bef
2017-04-05 19:09:16 -07:00