Commit Graph

89 Commits

Author SHA1 Message Date
songqing d3e015fe06 Fix compact_files_example (#12084)
Summary:
The option "write_buffer_size" has changed from 4MB for 64MB by default, and the compact_files_example will not work as expected, as the test data written is only about 50MB and will not trigger compaction.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12084

Reviewed By: cbi42

Differential Revision: D51499959

Pulled By: ajkr

fbshipit-source-id: 4f4b25ebc4b6bb568501adc8e97813edcddceea8
2023-11-21 09:34:59 -08:00
sdong 4720ba4391 Remove RocksDB LITE (#11147)
Summary:
We haven't been actively mantaining RocksDB LITE recently and the size must have been gone up significantly. We are removing the support.

Most of changes were done through following comments:

unifdef -m -UROCKSDB_LITE `git grep -l ROCKSDB_LITE | egrep '[.](cc|h)'`

by Peter Dillinger. Others changes were manually applied to build scripts, CircleCI manifests, ROCKSDB_LITE is used in an expression and file db_stress_test_base.cc.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/11147

Test Plan: See CI

Reviewed By: pdillinger

Differential Revision: D42796341

fbshipit-source-id: 4920e15fc2060c2cd2221330a6d0e5e65d4b7fe2
2023-01-27 13:14:19 -08:00
Tal Zussman 0d5dc5fdb9 Add rocksdb_backup_restore_example to examples/.gitignore (#10825)
Summary: Pull Request resolved: https://github.com/facebook/rocksdb/pull/10825

Reviewed By: akankshamahajan15

Differential Revision: D40419234

Pulled By: ajkr

fbshipit-source-id: 2d700154eb5b2943d10a0f944f2b414ece353e4a
2022-11-02 15:02:09 -07:00
Hui Xiao 08a63ad10b Run clang format against files under example/, memory/ and memtable/ folders (#10893)
Summary:
**Context/Summary:**
Run the following to format
```
find ./examples -iname *.h -o -iname *.cc | xargs clang-format -i
find ./memory -iname *.h -o -iname *.cc | xargs clang-format -i
find ./memtable -iname *.h -o -iname *.cc | xargs clang-format -i
```

**Test**
- Manual inspection to ensure changes are cosmetic only
- CI

Pull Request resolved: https://github.com/facebook/rocksdb/pull/10893

Reviewed By: jay-zhuang

Differential Revision: D40779187

Pulled By: hx235

fbshipit-source-id: 529cbb0f0fbd698d95817e8c42fe3ce32254d9b0
2022-10-28 13:16:50 -07:00
yite.gu 560906ab33 Add a simple example of backup and restore (#10054)
Summary:
Add a simple example of backup and restore

Signed-off-by: YiteGu <ess_gyt@qq.com>

Pull Request resolved: https://github.com/facebook/rocksdb/pull/10054

Reviewed By: jay-zhuang

Differential Revision: D36678141

Pulled By: ajkr

fbshipit-source-id: 43545356baddb4c2c76c62cd63d7a3238d1f8a00
2022-06-03 23:25:31 -07:00
sdong 33742c2a9f Remove BlockBasedTableOptions.hash_index_allow_collision (#9454)
Summary:
BlockBasedTableOptions.hash_index_allow_collision is already deprecated and has no effect. Delete it for preparing 7.0 release.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/9454

Test Plan: Run all existing tests.

Reviewed By: ajkr

Differential Revision: D33805827

fbshipit-source-id: ed8a436d1d083173ec6aef2a762ba02e1eefdc9d
2022-03-01 13:58:02 -08:00
Peter Dillinger fd3e0f43b3 Require C++17 (#9481)
Summary:
Drop support for some old compilers by requiring C++17 standard
(or higher). See https://github.com/facebook/rocksdb/issues/9388

First modification based on this is to remove some conditional compilation in slice.h (also
better for ODR)

Also in this PR:
* Fix some Makefile formatting that seems to affect ASSERT_STATUS_CHECKED config in
some cases
* Add c_test to NON_PARALLEL_TEST in Makefile
* Fix a clang-analyze reported "potential leak" in lru_cache_test
* Better "compatibility" definition of DEFINE_uint32 for old versions of gflags
* Fix a linking problem with shared libraries in Makefile (`./random_test: error while loading shared libraries: librocksdb.so.6.29: cannot open shared object file: No such file or directory`)
* Always set ROCKSDB_SUPPORT_THREAD_LOCAL and use thread_local (from C++11)
  * TODO in later PR: clean up that obsolete flag
* Fix a cosmetic typo in c.h (https://github.com/facebook/rocksdb/issues/9488)

Pull Request resolved: https://github.com/facebook/rocksdb/pull/9481

Test Plan:
CircleCI config substantially updated.

* Upgrade to latest Ubuntu images for each release
* Generally prefer Ubuntu 20, but keep a couple Ubuntu 16 builds with oldest supported
compilers, to ensure compatibility
* Remove .circleci/cat_ignore_eagain except for Ubuntu 16 builds, because this is to work
around a kernel bug that should not affect anything but Ubuntu 16.
* Remove designated gcc-9 build, because the default linux build now uses GCC 9 from
Ubuntu 20.
* Add some `apt-key add` to fix some apt "couldn't be verified" errors
* Generally drop SKIP_LINK=1; work-around no longer needed
* Generally `add-apt-repository` before `apt-get update` as manual testing indicated the
reverse might not work.

Travis:
* Use gcc-7 by default (remove specific gcc-7 and gcc-4.8 builds)
* TODO in later PR: fix s390x "Assembler messages: Error: invalid switch -march=z14" failure

AppVeyor:
* Completely dropped because we are dropping VS2015 support and CircleCI covers
VS >= 2017

Also local testing with old gflags (out of necessity when using ROCKSDB_NO_FBCODE=1).

Reviewed By: mrambacher

Differential Revision: D33946377

Pulled By: pdillinger

fbshipit-source-id: ae077c823905b45370a26c0103ada119459da6c1
2022-02-04 17:13:10 -08:00
Akanksha Mahajan 74ccd1931e Remove deprecated option DBOptions::skip_log_error_on_recovery (#9434)
Summary:
In  RocksDB DBOptions::skip_log_error_on_recovery is marked as
"NOT SUPPORTED" for a long time, and setting this option does not have
any effect on the behavior of RocksDB library. Therefore, we are removing it
in the upcoming 7.0 release.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/9434

Test Plan: CircleCI

Reviewed By: ajkr

Differential Revision: D33763015

Pulled By: akankshamahajan15

fbshipit-source-id: 11f09643298da6c02d3dcdb090b996f4c3cfdd76
2022-01-28 01:46:04 -08:00
Hui Xiao 1e0e883ca5 Remove deprecated API AdvancedColumnFamilyOptions::soft_rate_limit/hard_rate_limit (#9452)
Summary:
**Context/Summary:**
AdvancedColumnFamilyOptions::soft_rate_limit/hard_rate_limit have been marked as deprecated and it's time to actually remove the code.
- Keep `soft_rate_limit`/`hard_rate_limit` in `cf_mutable_options_type_info` to prevent throwing `InvalidArgument` in `GetColumnFamilyOptionsFromMap` when reading an option file still with these options (e.g, old option file generated from RocksDB before the deprecation)
- Keep `soft_rate_limit`/`hard_rate_limit` in under `OptionsOldApiTest.GetOptionsFromMapTest` to test the case mentioned above.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/9452

Test Plan: Rely on my eyeball and CI

Reviewed By: ajkr

Differential Revision: D33804938

Pulled By: hx235

fbshipit-source-id: 133d49f7ec5238d7efceeb0a3122a5792a2b9945
2022-01-27 13:01:09 -08:00
Jay Zhuang 3e27add385 Fix a backward compatibility issue (#9456)
Summary:
Fix a backward compatibility issue caused by removing
`purge_redundant_kvs_while_flush`. Reserve the option internally.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/9456

Test Plan: CI: https://app.circleci.com/pipelines/github/facebook/rocksdb/11122/workflows/b7bc0f35-1be8-432c-9292-79125e22ecc7/jobs/280595

Reviewed By: ajkr, ltamasi

Differential Revision: D33808474

Pulled By: jay-zhuang

fbshipit-source-id: 7c3b553bc8e85c8a560514e8e460a2dbaf25718d
2022-01-26 22:23:21 -08:00
Jay Zhuang 961d8dacf2 Remove unused option purge_redundant_kvs_while_flush (#9429)
Summary: Pull Request resolved: https://github.com/facebook/rocksdb/pull/9429

Test Plan: fake release for test: D33754513

Reviewed By: riversand963

Differential Revision: D33753637

Pulled By: jay-zhuang

fbshipit-source-id: 18db4701e8f28dda8f1ab660c2be9890a8312c12
2022-01-26 10:24:16 -08:00
Yanqin Jin 0376869f05 Remove using namespace (#9369)
Summary:
As title.
This is part of an fb-internal task.
First, remove all `using namespace` statements if applicable.
Next, utilize multiple build platforms and see if anything is broken.
Should anything become broken, fix the compilation errors with as little extra change as possible.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/9369

Test Plan:
internal build and make check
make clean && make static_lib && cd examples && make all

Reviewed By: pdillinger

Differential Revision: D33517260

Pulled By: riversand963

fbshipit-source-id: 3fc4ce6402a073421dfd9a9b2d1c79441dca7a40
2022-01-12 09:31:12 -08:00
Peter Dillinger cb5b851ff8 Add (& fix) some simple source code checks (#8821)
Summary:
* Don't hardcode namespace rocksdb (use ROCKSDB_NAMESPACE)
* Don't #include <rocksdb/...> (use double quotes)
* Support putting NOCOMMIT (any case) in source code that should not be
committed/pushed in current state.

These will be run with `make check` and in GitHub actions

Pull Request resolved: https://github.com/facebook/rocksdb/pull/8821

Test Plan: existing tests, manually try out new checks

Reviewed By: zhichao-cao

Differential Revision: D30791726

Pulled By: pdillinger

fbshipit-source-id: 399c883f312be24d9e55c58951d4013e18429d92
2021-09-07 21:19:27 -07:00
Ed rodriguez 7381dad1b1 make:Fix c header prototypes (#7994)
Summary: Pull Request resolved: https://github.com/facebook/rocksdb/pull/7994

Reviewed By: jay-zhuang

Differential Revision: D26904603

Pulled By: ajkr

fbshipit-source-id: 0af92a51de895b40c7faaa4f0870b3f63279fe21
2021-03-09 20:44:23 -08:00
mrambacher 7d472accdc Bring the Configurable options together (#5753)
Summary:
This PR merges the functionality of making the ColumnFamilyOptions, TableFactory, and DBOptions into Configurable into a single PR, resolving any merge conflicts

Pull Request resolved: https://github.com/facebook/rocksdb/pull/5753

Reviewed By: ajkr

Differential Revision: D23385030

Pulled By: zhichao-cao

fbshipit-source-id: 8b977a7731556230b9b8c5a081b98e49ee4f160a
2020-09-14 17:01:01 -07:00
Tomasz Posłuszny 8d44d792c3 Make examples work on Windows (#7304)
Summary:
Quick fixes to examples to make it easier to get familiar with RocksDB for Windows users:

- Set proper temporary directory path on Windows for all examples (with C++17 we should start using std::filesystem)
- Fixed typo and got rid of warnings treated as errors in multi_processes_example.cc
- Get number of available cores on Windows in c_simple_example.c
- Add command to remove DB directory for Windows in compaction_filter_example.cc (print error, but carry on with example upon error, because error code is returned if there is no such directory on Windows)

Pull Request resolved: https://github.com/facebook/rocksdb/pull/7304

Reviewed By: jay-zhuang

Differential Revision: D23450900

Pulled By: pdillinger

fbshipit-source-id: 4256134deb6ae6bb267ed1bd69f814842b95f60f
2020-09-01 18:03:50 -07:00
Kefu Chai f4583f7480 add WITH_EXAMPLES options to cmake and cleanups. (#6580)
Summary: Pull Request resolved: https://github.com/facebook/rocksdb/pull/6580

Reviewed By: cheng-chang

Differential Revision: D21846336

Pulled By: ajkr

fbshipit-source-id: e5bb0152a0876061d4ff158e7144eb9cc5a88cad
2020-06-18 18:00:04 -07:00
Derrick Pallas 3a1c29d40e Add missing my_pid to fprintf in multi_process_example (#6731)
Summary:
Signed-off-by: Derrick Pallas <derrick@pallas.us>
Pull Request resolved: https://github.com/facebook/rocksdb/pull/6731

Reviewed By: siying

Differential Revision: D21137005

Pulled By: riversand963

fbshipit-source-id: a7182e1bec225bc110971f40e2d0e6c3a671c061
2020-05-08 20:49:33 -07:00
mrambacher 4cbc19d2a1 Add a ConfigOptions for use in comparing objects and converting to/from strings (#6389)
Summary:
The methods in convenience.h are used to compare/convert objects to/from strings.  There is a mishmash of parameters in use here with more needed in the future.  This PR replaces those parameters with a single structure.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/6389

Reviewed By: siying

Differential Revision: D21163707

Pulled By: zhichao-cao

fbshipit-source-id: f807b4cc7e2b0af3871536b69546b2604dfa81bd
2020-04-21 17:38:17 -07:00
Cheng Chang 2ccb794eb6 Use DestroyColumnFamilyHandle instead of directly deleting column family handle (#6505)
Summary:
Update example usage of closing column family.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/6505

Test Plan: cd examples && make column_families_example && ./column_families_example

Differential Revision: D20362100

Pulled By: cheng-chang

fbshipit-source-id: 493c5e0068a40b4f237f8f8511cddd22dc15ea5c
2020-03-12 14:30:46 -07:00
sdong fdf882ded2 Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433)
Summary:
When dynamically linking two binaries together, different builds of RocksDB from two sources might cause errors. To provide a tool for user to solve the problem, the RocksDB namespace is changed to a flag which can be overridden in build time.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/6433

Test Plan: Build release, all and jtest. Try to build with ROCKSDB_NAMESPACE with another flag.

Differential Revision: D19977691

fbshipit-source-id: aa7f2d0972e1c31d75339ac48478f34f6cfcfb3e
2020-02-20 12:09:57 -08:00
Cheng Chang 86623a7153 Update example of optimistic transaction (#6074)
Summary:
Add asserts to show the intentions of result explicitly.
Add examples to show the effect of optimistic transaction more clearly.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/6074

Test Plan: `cd examples && make optimistic_transaction_example && ./optimistic_transaction_example`

Differential Revision: D18964309

Pulled By: cheng-chang

fbshipit-source-id: a524616ed9981edf2fd37ae61c5ed18c5cf25f55
2020-01-16 14:04:44 -08:00
Cheng Chang 77565d7532 Add example to show the effect of Get in snapshot isolation (#6059)
Summary:
Adds example to show the difference of reading from snapshot and from the latest state.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/6059

Test Plan: cd examples && make transaction_example && ./transaction_example

Differential Revision: D18797616

fbshipit-source-id: f17a2cb12187092ea243159e6ccf55790859e0c0
2019-12-11 09:56:42 -08:00
Cheng Chang c0983d0691 Add asserts in transaction example (#6055)
Summary:
The intention of the example for read committed is clearer with these added asserts.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/6055

Test Plan: `cd examples && make transaction_example && ./transaction_example`

Differential Revision: D18621830

Pulled By: riversand963

fbshipit-source-id: a94b08c5958b589049409ee4fc4d6799e5cbef79
2019-11-20 14:18:51 -08:00
sdong e8263dbdaa Apply formatter to recent 200+ commits. (#5830)
Summary:
Further apply formatter to more recent commits.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/5830

Test Plan: Run all existing tests.

Differential Revision: D17488031

fbshipit-source-id: 137458fd94d56dd271b8b40c522b03036943a2ab
2019-09-20 12:04:26 -07:00
Zhongyi Xie 2f41ecfe75 Refactor trimming logic for immutable memtables (#5022)
Summary:
MyRocks currently sets `max_write_buffer_number_to_maintain` in order to maintain enough history for transaction conflict checking. The effectiveness of this approach depends on the size of memtables. When memtables are small, it may not keep enough history; when memtables are large, this may consume too much memory.
We are proposing a new way to configure memtable list history: by limiting the memory usage of immutable memtables. The new option is `max_write_buffer_size_to_maintain` and it will take precedence over the old `max_write_buffer_number_to_maintain` if they are both set to non-zero values. The new option accounts for the total memory usage of flushed immutable memtables and mutable memtable. When the total usage exceeds the limit, RocksDB may start dropping immutable memtables (which is also called trimming history), starting from the oldest one.
The semantics of the old option actually works both as an upper bound and lower bound. History trimming will start if number of immutable memtables exceeds the limit, but it will never go below (limit-1) due to history trimming.
In order the mimic the behavior with the new option, history trimming will stop if dropping the next immutable memtable causes the total memory usage go below the size limit. For example, assuming the size limit is set to 64MB, and there are 3 immutable memtables with sizes of 20, 30, 30. Although the total memory usage is 80MB > 64MB, dropping the oldest memtable will reduce the memory usage to 60MB < 64MB, so in this case no memtable will be dropped.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/5022

Differential Revision: D14394062

Pulled By: miasantreble

fbshipit-source-id: 60457a509c6af89d0993f988c9b5c2aa9e45f5c5
2019-08-23 13:55:34 -07:00
Zhongyi Xie d68f9f4580 simplify include directive involving inttypes (#5402)
Summary:
When using `PRIu64` type of printf specifier, current code base does the following:
```
#ifndef __STDC_FORMAT_MACROS
#define __STDC_FORMAT_MACROS
#endif
#include <inttypes.h>
```
However, this can be simplified to
```
#include <cinttypes>
```
as long as flag `-std=c++11` is used.
This should solve issues like https://github.com/facebook/rocksdb/issues/5159
Pull Request resolved: https://github.com/facebook/rocksdb/pull/5402

Differential Revision: D15701195

Pulled By: miasantreble

fbshipit-source-id: 6dac0a05f52aadb55e9728038599d3d2e4b59d03
2019-06-06 13:56:07 -07:00
Yanqin Jin 9358178edc Support for single-primary, multi-secondary instances (#4899)
Summary:
This PR allows RocksDB to run in single-primary, multi-secondary process mode.
The writer is a regular RocksDB (e.g. an `DBImpl`) instance playing the role of a primary.
Multiple `DBImplSecondary` processes (secondaries) share the same set of SST files, MANIFEST, WAL files with the primary. Secondaries tail the MANIFEST of the primary and apply updates to their own in-memory state of the file system, e.g. `VersionStorageInfo`.

This PR has several components:
1. (Originally in #4745). Add a `PathNotFound` subcode to `IOError` to denote the failure when a secondary tries to open a file which has been deleted by the primary.

2. (Similar to #4602). Add `FragmentBufferedReader` to handle partially-read, trailing record at the end of a log from where future read can continue.

3. (Originally in #4710 and #4820). Add implementation of the secondary, i.e. `DBImplSecondary`.
3.1 Tail the primary's MANIFEST during recovery.
3.2 Tail the primary's MANIFEST during normal processing by calling `ReadAndApply`.
3.3 Tailing WAL will be in a future PR.

4. Add an example in 'examples/multi_processes_example.cc' to demonstrate the usage of secondary RocksDB instance in a multi-process setting. Instructions to run the example can be found at the beginning of the source code.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/4899

Differential Revision: D14510945

Pulled By: riversand963

fbshipit-source-id: 4ac1c5693e6012ad23f7b4b42d3c374fecbe8886
2019-03-26 16:45:31 -07:00
Maysam Yabandeh 80ade9ad83 Pin top-level index on partitioned index/filter blocks (#4037)
Summary:
Top-level index in partitioned index/filter blocks are small and could be pinned in memory. So far we use that by cache_index_and_filter_blocks to false. This however make it difficult to keep account of the total memory usage. This patch introduces pin_top_level_index_and_filter which in combination with cache_index_and_filter_blocks=true keeps the top-level index in cache and yet pinned them to avoid cache misses and also cache lookup overhead.
Closes https://github.com/facebook/rocksdb/pull/4037

Differential Revision: D8596218

Pulled By: maysamyabandeh

fbshipit-source-id: 3a5f7f9ca6b4b525b03ff6bd82354881ae974ad2
2018-06-22 15:27:46 -07:00
Maysam Yabandeh 7fdf735d5d Pinnableslice examples and blog post
Summary: Closes https://github.com/facebook/rocksdb/pull/2788

Differential Revision: D5700189

Pulled By: maysamyabandeh

fbshipit-source-id: 6f043e652093ff904e52f6d35190855781b87673
2017-08-24 12:26:07 -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
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
Tamir Duberstein 107c5f6a60 CMake: more MinGW fixes
Summary:
siying this is a resubmission of #2081 with the 4th commit fixed. From that commit message:

> Note that the previous use of quotes in PLATFORM_{CC,CXX}FLAGS was
incorrect and caused GCC to produce the incorrect define:
>
>  #define ROCKSDB_JEMALLOC -DJEMALLOC_NO_DEMANGLE 1
>
> This was the cause of the Linux build failure on the previous version
of this change.

I've tested this locally, and the Linux build succeeds now.
Closes https://github.com/facebook/rocksdb/pull/2097

Differential Revision: D4839964

Pulled By: siying

fbshipit-source-id: cc51322
2017-04-06 14:09:13 -07:00
Siying Dong 43010a929f Revert "[rocksdb][PR] CMake: more MinGW fixes"
fbshipit-source-id: 43b4529
2017-04-04 16:24:26 -07:00
Tamir Duberstein 3450ac8c1b CMake: more MinGW fixes
Summary:
See individual commits.

yuslepukhin siying
Closes https://github.com/facebook/rocksdb/pull/2081

Differential Revision: D4824639

Pulled By: IslamAbdelRahman

fbshipit-source-id: 2fc2b00
2017-04-04 15:09:17 -07:00
Sagar Vemuri 8888de2b13 Update .gitignore file in examples
Summary:
options_file_example should be added in .gitignore so that it does not show up as an untracked file in `git status`.
Closes https://github.com/facebook/rocksdb/pull/2026

Differential Revision: D4759402

Pulled By: sagar0

fbshipit-source-id: d7fe133
2017-03-23 11:24:14 -07:00
Islam AbdelRahman f89b3893c0 Remove skip_table_builder_flush and default it to true
Summary:
This option is needed to be enabled for Direct IO
and I cannot think of a reason where we need to disable it

remove it and default it to true
Closes https://github.com/facebook/rocksdb/pull/1944

Differential Revision: D4641088

Pulled By: IslamAbdelRahman

fbshipit-source-id: d7085b9
2017-03-02 16:54:10 -08:00
Volker Mische aa0298fa9b Remove trailing whitespace from examples Makefile
Summary:
The Makefile in the examples directory contained an empty line contain a tab character. This made my Emacs ask on every save `Suspicious line 10. Save anyway? (y or n)`
Closes https://github.com/facebook/rocksdb/pull/1872

Differential Revision: D4573881

Pulled By: siying

fbshipit-source-id: fb3b4ee
2017-02-16 13:24:09 -08:00
Sagar Vemuri eb912a927e Remove disableDataSync option
Summary:
Remove disableDataSync, and another similarly named disable_data_sync options.
This is being done to simplify options, and also because the performance gains of this feature can be achieved by other methods.
Closes https://github.com/facebook/rocksdb/pull/1859

Differential Revision: D4541292

Pulled By: sagar0

fbshipit-source-id: 5b3a6ca
2017-02-13 11:09:13 -08:00
Changli Gao 2fb70dc798 examples: Add options_file_example to target all
Summary: Closes https://github.com/facebook/rocksdb/pull/1723

Differential Revision: D4372273

Pulled By: IslamAbdelRahman

fbshipit-source-id: c8c2ad0
2016-12-28 19:09:16 -08:00
Aaron Gao 972f96b3fb direct io write support
Summary:
rocksdb direct io support

```
[gzh@dev11575.prn2 ~/rocksdb] ./db_bench -benchmarks=fillseq --num=1000000
Initializing RocksDB Options from the specified file
Initializing RocksDB Options from command-line flags
RocksDB:    version 5.0
Date:       Wed Nov 23 13:17:43 2016
CPU:        40 * Intel(R) Xeon(R) CPU E5-2660 v2 @ 2.20GHz
CPUCache:   25600 KB
Keys:       16 bytes each
Values:     100 bytes each (50 bytes after compression)
Entries:    1000000
Prefix:    0 bytes
Keys per prefix:    0
RawSize:    110.6 MB (estimated)
FileSize:   62.9 MB (estimated)
Write rate: 0 bytes/second
Compression: Snappy
Memtablerep: skip_list
Perf Level: 1
WARNING: Assertions are enabled; benchmarks unnecessarily slow
------------------------------------------------
Initializing RocksDB Options from the specified file
Initializing RocksDB Options from command-line flags
DB path: [/tmp/rocksdbtest-112628/dbbench]
fillseq      :       4.393 micros/op 227639 ops/sec;   25.2 MB/s

[gzh@dev11575.prn2 ~/roc
Closes https://github.com/facebook/rocksdb/pull/1564

Differential Revision: D4241093

Pulled By: lightmark

fbshipit-source-id: 98c29e3
2016-12-22 13:09:19 -08:00
Jonathan Lee 7004a6f7b8 Add missing copyright header
Summary:
"examples/c_simple_example.c" did not have a proper copyright header.
Closes https://github.com/facebook/rocksdb/pull/1670

Differential Revision: D4327445

Pulled By: yiwu-arbug

fbshipit-source-id: a70389e
2016-12-14 10:24:13 -08:00
daoye.ch 4b0aa3c4c8 Fix failed compaction_filter_example and add it into make all
Summary:
Simple patch as title
Closes https://github.com/facebook/rocksdb/pull/1512

Differential Revision: D4186994

Pulled By: siying

fbshipit-source-id: 880f9b8
2016-11-15 17:09:10 -08:00
Jo Liss 215d12826d Fix typo (#903)
Presumably a leftover from optimistic_transaction_example.cc.
2016-09-14 14:12:31 -07:00
Yi Wu 8e061f9740 Refactor GetMutableOptionsFromStrings
Summary: Add mutable options info into `OptionsTypeInfo` and use it to parse mutable options map. Also support `max_bytes_for_level_multiplier_additional` in option file.

Test Plan: unit test

Reviewers: yhchiang, IslamAbdelRahman, sdong

Reviewed By: sdong

Subscribers: andrewkr, dhruba, leveldb

Differential Revision: https://reviews.facebook.net/D63843
2016-09-13 21:12:43 -07:00
Islam AbdelRahman 68a8e6b8fa Introduce FullMergeV2 (eliminate memcpy from merge operators)
Summary:
This diff update the code to pin the merge operator operands while the merge operation is done, so that we can eliminate the memcpy cost, to do that we need a new public API for FullMerge that replace the std::deque<std::string> with std::vector<Slice>

This diff is stacked on top of D56493 and D56511

In this diff we
- Update FullMergeV2 arguments to be encapsulated in MergeOperationInput and MergeOperationOutput which will make it easier to add new arguments in the future
- Replace std::deque<std::string> with std::vector<Slice> to pass operands
- Replace MergeContext std::deque with std::vector (based on a simple benchmark I ran https://gist.github.com/IslamAbdelRahman/78fc86c9ab9f52b1df791e58943fb187)
- Allow FullMergeV2 output to be an existing operand

```
[Everything in Memtable | 10K operands | 10 KB each | 1 operand per key]

DEBUG_LEVEL=0 make db_bench -j64 && ./db_bench --benchmarks="mergerandom,readseq,readseq,readseq,readseq,readseq" --merge_operator="max" --merge_keys=10000 --num=10000 --disable_auto_compactions --value_size=10240 --write_buffer_size=1000000000

[FullMergeV2]
readseq      :       0.607 micros/op 1648235 ops/sec; 16121.2 MB/s
readseq      :       0.478 micros/op 2091546 ops/sec; 20457.2 MB/s
readseq      :       0.252 micros/op 3972081 ops/sec; 38850.5 MB/s
readseq      :       0.237 micros/op 4218328 ops/sec; 41259.0 MB/s
readseq      :       0.247 micros/op 4043927 ops/sec; 39553.2 MB/s

[master]
readseq      :       3.935 micros/op 254140 ops/sec; 2485.7 MB/s
readseq      :       3.722 micros/op 268657 ops/sec; 2627.7 MB/s
readseq      :       3.149 micros/op 317605 ops/sec; 3106.5 MB/s
readseq      :       3.125 micros/op 320024 ops/sec; 3130.1 MB/s
readseq      :       4.075 micros/op 245374 ops/sec; 2400.0 MB/s
```

```
[Everything in Memtable | 10K operands | 10 KB each | 10 operand per key]

DEBUG_LEVEL=0 make db_bench -j64 && ./db_bench --benchmarks="mergerandom,readseq,readseq,readseq,readseq,readseq" --merge_operator="max" --merge_keys=1000 --num=10000 --disable_auto_compactions --value_size=10240 --write_buffer_size=1000000000

[FullMergeV2]
readseq      :       3.472 micros/op 288018 ops/sec; 2817.1 MB/s
readseq      :       2.304 micros/op 434027 ops/sec; 4245.2 MB/s
readseq      :       1.163 micros/op 859845 ops/sec; 8410.0 MB/s
readseq      :       1.192 micros/op 838926 ops/sec; 8205.4 MB/s
readseq      :       1.250 micros/op 800000 ops/sec; 7824.7 MB/s

[master]
readseq      :      24.025 micros/op 41623 ops/sec;  407.1 MB/s
readseq      :      18.489 micros/op 54086 ops/sec;  529.0 MB/s
readseq      :      18.693 micros/op 53495 ops/sec;  523.2 MB/s
readseq      :      23.621 micros/op 42335 ops/sec;  414.1 MB/s
readseq      :      18.775 micros/op 53262 ops/sec;  521.0 MB/s

```

```
[Everything in Block cache | 10K operands | 10 KB each | 1 operand per key]

[FullMergeV2]
$ DEBUG_LEVEL=0 make db_bench -j64 && ./db_bench --benchmarks="readseq,readseq,readseq,readseq,readseq" --merge_operator="max" --num=100000 --db="/dev/shm/merge-random-10K-10KB" --cache_size=1000000000 --use_existing_db --disable_auto_compactions
readseq      :      14.741 micros/op 67837 ops/sec;  663.5 MB/s
readseq      :       1.029 micros/op 971446 ops/sec; 9501.6 MB/s
readseq      :       0.974 micros/op 1026229 ops/sec; 10037.4 MB/s
readseq      :       0.965 micros/op 1036080 ops/sec; 10133.8 MB/s
readseq      :       0.943 micros/op 1060657 ops/sec; 10374.2 MB/s

[master]
readseq      :      16.735 micros/op 59755 ops/sec;  584.5 MB/s
readseq      :       3.029 micros/op 330151 ops/sec; 3229.2 MB/s
readseq      :       3.136 micros/op 318883 ops/sec; 3119.0 MB/s
readseq      :       3.065 micros/op 326245 ops/sec; 3191.0 MB/s
readseq      :       3.014 micros/op 331813 ops/sec; 3245.4 MB/s
```

```
[Everything in Block cache | 10K operands | 10 KB each | 10 operand per key]

DEBUG_LEVEL=0 make db_bench -j64 && ./db_bench --benchmarks="readseq,readseq,readseq,readseq,readseq" --merge_operator="max" --num=100000 --db="/dev/shm/merge-random-10-operands-10K-10KB" --cache_size=1000000000 --use_existing_db --disable_auto_compactions

[FullMergeV2]
readseq      :      24.325 micros/op 41109 ops/sec;  402.1 MB/s
readseq      :       1.470 micros/op 680272 ops/sec; 6653.7 MB/s
readseq      :       1.231 micros/op 812347 ops/sec; 7945.5 MB/s
readseq      :       1.091 micros/op 916590 ops/sec; 8965.1 MB/s
readseq      :       1.109 micros/op 901713 ops/sec; 8819.6 MB/s

[master]
readseq      :      27.257 micros/op 36687 ops/sec;  358.8 MB/s
readseq      :       4.443 micros/op 225073 ops/sec; 2201.4 MB/s
readseq      :       5.830 micros/op 171526 ops/sec; 1677.7 MB/s
readseq      :       4.173 micros/op 239635 ops/sec; 2343.8 MB/s
readseq      :       4.150 micros/op 240963 ops/sec; 2356.8 MB/s
```

Test Plan: COMPILE_WITH_ASAN=1 make check -j64

Reviewers: yhchiang, andrewkr, sdong

Reviewed By: sdong

Subscribers: lovro, andrewkr, dhruba

Differential Revision: https://reviews.facebook.net/D57075
2016-07-20 09:49:03 -07:00
Islam AbdelRahman 886af59105 Fix examples/Makefile jemalloc error
Summary: compile and link with jemalloc in examples binaries

Test Plan:
cd examples
make -j64

Reviewers: andrewkr, sdong

Reviewed By: sdong

Subscribers: andrewkr, dhruba, yoshinorim

Differential Revision: https://reviews.facebook.net/D59457
2016-06-14 12:18:32 -07:00
Marton Trencseni 9b51987521 Adding pin_l0_filter_and_index_blocks_in_cache feature and related fixes.
Summary:
When a block based table file is opened, if prefetch_index_and_filter is true, it will prefetch the index and filter blocks, putting them into the block cache.
What this feature adds: when a L0 block based table file is opened, if pin_l0_filter_and_index_blocks_in_cache is true in the options (and prefetch_index_and_filter is true), then the filter and index blocks aren't released back to the block cache at the end of BlockBasedTableReader::Open(). Instead the table reader takes ownership of them, hence pinning them, ie. the LRU cache will never push them out. Meanwhile in the table reader, further accesses will not hit the block cache, thus avoiding lock contention.

Test Plan:
'export TEST_TMPDIR=/dev/shm/ && DISABLE_JEMALLOC=1 OPT=-g make all valgrind_check -j32' is OK.
I didn't run the Java tests, I don't have Java set up on my devserver.

Reviewers: sdong

Reviewed By: sdong

Subscribers: andrewkr, dhruba

Differential Revision: https://reviews.facebook.net/D56133
2016-04-01 10:42:39 -07:00
sdong b1fafcaca6 Revert "Adding pin_l0_filter_and_index_blocks_in_cache feature."
This reverts commit 522de4f59e.

It has bug of index block cleaning up.
2016-03-21 11:50:42 -07:00
Marton Trencseni 522de4f59e Adding pin_l0_filter_and_index_blocks_in_cache feature.
Summary:
When a block based table file is opened, if prefetch_index_and_filter is true, it will prefetch the index and filter blocks, putting them into the block cache.
What this feature adds: when a L0 block based table file is opened, if pin_l0_filter_and_index_blocks_in_cache is true in the options (and prefetch_index_and_filter is true), then the filter and index blocks aren't released back to the block cache at the end of BlockBasedTableReader::Open(). Instead the table reader takes ownership of them, hence pinning them, ie. the LRU cache will never push them out. Meanwhile in the table reader, further accesses will not hit the block cache, thus avoiding lock contention.
When the table reader is destroyed, it releases the pinned blocks (if there were any). This has to happen before the cache is destroyed, so I had to introduce a TableReader::Close(), to guarantee the order of destruction.

Test Plan:
Added two unit tests for this. Existing unit tests run fine (default is pin_l0_filter_and_index_blocks_in_cache=false).

DISABLE_JEMALLOC=1 OPT=-g make all valgrind_check -j32
  Mac: OK.
  Linux: with D55287 patched in it's OK.

Reviewers: sdong

Reviewed By: sdong

Subscribers: andrewkr, leveldb, dhruba

Differential Revision: https://reviews.facebook.net/D54801
2016-03-17 22:40:01 +00:00