Commit graph

137 commits

Author SHA1 Message Date
Aaron Gao f7bb1a0060 support merge and delete in file ingestion
Summary:
Previously sst_file_writer only supports kTypeValue, we need kTypeMerge and kTypeDeletion also as user requested.
Closes https://github.com/facebook/rocksdb/pull/2361

Differential Revision: D5139402

Pulled By: lightmark

fbshipit-source-id: 092a60756d01692539d817a3765ebfd58a8d7f88
2017-05-26 12:11:21 -07:00
boolean5 cb9392a094 add Transactions and Checkpoint to C API
Summary:
I've added functions to the C API to support Transactions as requested in #1637 and to support Checkpoint.

I have also added the corresponding tests to c_test.c

For now, the following is omitted:

1. Optimistic Transactions
2. The column family variation of functions
Closes https://github.com/facebook/rocksdb/pull/2236

Differential Revision: D4989510

Pulled By: yiwu-arbug

fbshipit-source-id: 518cb39f76d5e9ec9690d633fcdc014b98958071
2017-05-16 22:59:43 -07:00
siddontang 1ca723dbd1 C API: support pinnable get
Summary: Closes https://github.com/facebook/rocksdb/pull/2254

Differential Revision: D5053590

Pulled By: yiwu-arbug

fbshipit-source-id: 2f365a031b3a2947b4fba21d26d4f8f52af9b9f0
2017-05-16 11:07:58 -07:00
Changjian Gao 3f73d54bbd Add C API to set max_file_opening_threads option
Summary:
Add `rocksdb_options_set_max_file_opening_threads()` API
Closes https://github.com/facebook/rocksdb/pull/2184

Differential Revision: D4923090

Pulled By: lightmark

fbshipit-source-id: c4ddce17733d999d426d02f7202b33a46ed6faed
2017-05-08 22:49:32 -07:00
siddontang b551104e04 support PopSavePoint for WriteBatch
Summary:
Try to fix https://github.com/facebook/rocksdb/issues/1969
Closes https://github.com/facebook/rocksdb/pull/2170

Differential Revision: D4907333

Pulled By: yiwu-arbug

fbshipit-source-id: 417b420ff668e6c2fd0dad42a94c57385012edc5
2017-05-03 10:57:45 -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 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
Warren Falk 41ccae6d26 Add C API functions (and tests) for WriteBatchWithIndex
Summary:
I've added functions to the C API to support WriteBatchWithIndex as requested in #1833.

I've also added unit tests to c_test

I've implemented the WriteBatchWithIndex variation of every function available for regular WriteBatch.  And added additional functions unique to WriteBatchWithIndex.

For now, the following is omitted:
  1. The ability to create WriteBatchWithIndex's custom batch-only iterator as I'm not sure what its purpose is.  It should be possible to add later if anyone wants it.
  2. The ability to create the batch with a fallback comparator, since it appears to be unnecessary.  I believe the column family comparator will be used for this, meaning those using a custom comparator can just use the column family variations.
Closes https://github.com/facebook/rocksdb/pull/1985

Differential Revision: D4760039

Pulled By: siying

fbshipit-source-id: 393227e
2017-03-23 15:54:13 -07:00
Sagar Vemuri 1ffbdfd9a7 Add a new SstFileWriter constructor without explicit comparator
Summary:
The comparator param in SstFileWriter constructor is redundant as it already exists as a field in options. So the current SstFileWriter constructor should be deprecated in favor of a new one which does not take a comparator.
Note that the jni/java apis have not been touched yet.
Closes https://github.com/facebook/rocksdb/pull/1978

Differential Revision: D4685629

Pulled By: sagar0

fbshipit-source-id: 372ce96
2017-03-13 11:39:13 -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
Siying Dong 8efb5ffa2a [rocksdb][PR] Remove option min_partial_merge_operands and verify_checksums_in_comp…
Summary:
…action

 The two options, min_partial_merge_operands and verify_checksums_in_compaction, are not seldom used. Remove them to reduce the total number of options. Also remove them from Java and C interface.
Closes https://github.com/facebook/rocksdb/pull/1902

Differential Revision: D4601219

Pulled By: siying

fbshipit-source-id: aad4cb2
2017-02-23 15:09:12 -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
oranagra b96372dead improving the C wrapper
Summary:
- rocksdb_property_int (so that we don't have to parse strings)
- and rocksdb_set_options (to allow controlling options via strings)
- a few other missing options exposed
- a documentation comment fix
Closes https://github.com/facebook/rocksdb/pull/1793

Differential Revision: D4456569

Pulled By: yiwu-arbug

fbshipit-source-id: 9f1fac1
2017-01-27 17:39:16 -08:00
Jay Lee 537da370da c: allow set savepoint to writebatch
Summary:
Allow set SavePoint to WriteBatch in C ABI.
Closes https://github.com/facebook/rocksdb/pull/1698

Differential Revision: D4378556

Pulled By: yiwu-arbug

fbshipit-source-id: afca746
2017-01-20 13:24:13 -08:00
siddontang 653ac1f9c6 C API: support total_order_mode
Summary: Closes https://github.com/facebook/rocksdb/pull/1687

Differential Revision: D4349210

Pulled By: IslamAbdelRahman

fbshipit-source-id: 32d0fbd
2017-01-03 18:39:14 -08:00
Vincent Lee e425ec1162 utilities/backupable: backup should limit the copy size of wal.
Summary:
Since the backup work as snapshot, we should only copy
 the bytes of the wal while we get the alive files.
Closes https://github.com/facebook/rocksdb/pull/1733

Differential Revision: D4373457

Pulled By: ajkr

fbshipit-source-id: 389318f
2016-12-31 10:54:20 -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
siddontang 8f5d24ae68 C API: support get usage and pinned_usage for cache
Summary: Closes https://github.com/facebook/rocksdb/pull/1671

Differential Revision: D4327453

Pulled By: yiwu-arbug

fbshipit-source-id: bcdbc65
2016-12-15 17:24:17 -08:00
siddontang b57dd9262a C API: support writebatch delete range
Summary:
Seem that writebatch delete range can work now, so I add C API for later use.

Btw, can we use this feature in production now?
Closes https://github.com/facebook/rocksdb/pull/1647

Differential Revision: D4314534

Pulled By: ajkr

fbshipit-source-id: e835165
2016-12-13 11:24:18 -08:00
zhangjinpeng1987 45c7ce1377 CompactRangeOptions C API
Summary:
Add C API for CompactRangeOptions.
Closes https://github.com/facebook/rocksdb/pull/1596

Differential Revision: D4252339

Pulled By: yiwu-arbug

fbshipit-source-id: f768f93
2016-12-07 17:54:14 -08:00
Panagiotis Ktistakis 96fcefbf1d c api: expose option for dynamic level size target
Summary: Closes https://github.com/facebook/rocksdb/pull/1587

Differential Revision: D4245923

Pulled By: yiwu-arbug

fbshipit-source-id: 6ee7291
2016-11-30 11:24:14 -08:00
zhangjinpeng1987 00197cff39 Add C API to set base_backgroud_compactions
Summary:
Add C API to set base_backgroud_compactions
Closes https://github.com/facebook/rocksdb/pull/1571

Differential Revision: D4245709

Pulled By: yiwu-arbug

fbshipit-source-id: 792c6b8
2016-11-30 11:09:13 -08:00
Siying Dong 972e3ff295 Enable allow_concurrent_memtable_write and enable_write_thread_adaptive_yield by default
Summary: Closes https://github.com/facebook/rocksdb/pull/1496

Differential Revision: D4168080

Pulled By: siying

fbshipit-source-id: 056ae62
2016-11-16 09:39:09 -08:00
Aaron Gao e48f3f8b9e remove tabs and duplicate #include in c api
Summary:
fix lint error about tabs and duplicate includes.
Closes https://github.com/facebook/rocksdb/pull/1476

Differential Revision: D4149646

Pulled By: lightmark

fbshipit-source-id: 2e0a632
2016-11-08 13:54:31 -08:00
Jay Lee a7875272d7 c: support seek_for_prev
Summary:
support seek_for_prev in c abi.
Closes https://github.com/facebook/rocksdb/pull/1457

Differential Revision: D4135360

Pulled By: lightmark

fbshipit-source-id: 61256b0
2016-11-08 12:54:13 -08:00
zhangjinpeng1987 879f366366 Add C api for RateLimiter
Summary:
Add C api for RateLimiter.
Closes https://github.com/facebook/rocksdb/pull/1455

Differential Revision: D4116362

Pulled By: yiwu-arbug

fbshipit-source-id: cb05a8d
2016-11-03 11:09:17 -07:00
Benoit Girard 2b16d664cb Change max_bytes_for_level_multiplier to double
Summary: Closes https://github.com/facebook/rocksdb/pull/1427

Differential Revision: D4094732

Pulled By: yiwu-arbug

fbshipit-source-id: b9b79e9
2016-11-01 21:09:23 -07:00
Jay Lee 16fb04434f expose IngestExternalFile to c abi
Summary:
IngestExternalFile is very useful when doing bulk load. This pr expose this API to c so many bindings can benefit from it too.
Closes https://github.com/facebook/rocksdb/pull/1454

Differential Revision: D4113420

Pulled By: yiwu-arbug

fbshipit-source-id: 307c6ae
2016-11-01 17:09:39 -07:00
Adam Faulkner a10e8a056d Fix C api memtable rep bugs. (#1328) 2016-09-12 15:31:42 -07:00
zhangjinpeng1987 b06b191362 add C api for set wal_recovery_mode (#1327)
* add C api for set wal recovery mode

* add test
2016-09-09 10:11:30 -07:00
sdong 32149059f9 Merge options source_compaction_factor, max_grandparent_overlap_bytes and expanded_compaction_factor into max_compaction_bytes
Summary: To reduce number of options, merge source_compaction_factor, max_grandparent_overlap_bytes and expanded_compaction_factor into max_compaction_bytes.

Test Plan: Add two new unit tests. Run all existing tests, including jtest.

Reviewers: yhchiang, igor, IslamAbdelRahman

Reviewed By: IslamAbdelRahman

Subscribers: leveldb, andrewkr, dhruba

Differential Revision: https://reviews.facebook.net/D59829
2016-09-01 14:33:24 -07:00
Jay 49d88be021 c abi: allow compaction filter ignore snapshot (#1268)
close #1262
2016-08-17 18:48:43 -07:00
sdong e5b5f12b81 Change options memtable_prefix_bloom_huge_page_tlb_size => memtable_huge_page_size and cover huge page to memtable too
Summary: Extend the option memtable_prefix_bloom_huge_page_tlb_size from just putting memtable bloom filter to huge page to memtable itself too.

Test Plan: Run all existing tests.

Reviewers: IslamAbdelRahman, yhchiang, andrewkr

Reviewed By: andrewkr

Subscribers: leveldb, andrewkr, dhruba

Differential Revision: https://reviews.facebook.net/D60513
2016-07-26 18:15:11 -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
sdong 7b79238b65 Deprectate filter_deletes
Summary: filter_deltes is not a frequently used feature. Remove it.

Test Plan: Run all test suites.

Reviewers: igor, yhchiang, IslamAbdelRahman

Reviewed By: IslamAbdelRahman

Subscribers: leveldb, andrewkr, dhruba

Differential Revision: https://reviews.facebook.net/D59427
2016-06-17 10:30:47 -07:00
sdong 20699df843 memtable_prefix_bloom_bits -> memtable_prefix_bloom_bits_ratio and deprecate memtable_prefix_bloom_probes
Summary:
memtable_prefix_bloom_probes is not a critical option. Remove it to reduce number of options.
It's easier for users to make mistakes with memtable_prefix_bloom_bits, turn it to memtable_prefix_bloom_bits_ratio

Test Plan: Run all existing tests

Reviewers: yhchiang, igor, IslamAbdelRahman

Reviewed By: IslamAbdelRahman

Subscribers: gunnarku, yoshinorim, MarkCallaghan, leveldb, andrewkr, dhruba

Differential Revision: https://reviews.facebook.net/D59199
2016-06-10 12:12:10 -07:00
Jan Doms 02ec8154e5 allow updating block cache capacity from C (#1149) 2016-06-03 14:04:51 +01:00
siddontang 21c047ab49 add readahead size option (#1146) 2016-06-01 10:48:50 -07:00
Shen Li def2f7bd0e Expose report_bg_io_stats option in the C API. (#1131) 2016-05-23 13:13:47 -07:00
siddontang 8f1214531e C API: Expose DeleteFileInRange (#1132) 2016-05-23 04:19:47 -07:00
Andrew Kryczka 54de13abac Fix compression dictionary clang errors
Summary: There were a few narrowing conversions that clang didn't like.

Test Plan:
  $ make clean && USE_CLANG=1 DISABLE_JEMALLOC=1 TEST_TMPDIR=/dev/shm/rocksdb OPT=-g make -j32 check

Reviewers: IslamAbdelRahman

Reviewed By: IslamAbdelRahman

Subscribers: andrewkr, dhruba, leveldb

Differential Revision: https://reviews.facebook.net/D57351
2016-04-27 18:30:04 -07:00
Andrew Kryczka 843d2e3137 Shared dictionary compression using reference block
Summary:
This adds a new metablock containing a shared dictionary that is used
to compress all data blocks in the SST file. The size of the shared dictionary
is configurable in CompressionOptions and defaults to 0. It's currently only
used for zlib/lz4/lz4hc, but the block will be stored in the SST regardless of
the compression type if the user chooses a nonzero dictionary size.

During compaction, computes the dictionary by randomly sampling the first
output file in each subcompaction. It pre-computes the intervals to sample
by assuming the output file will have the maximum allowable length. In case
the file is smaller, some of the pre-computed sampling intervals can be beyond
end-of-file, in which case we skip over those samples and the dictionary will
be a bit smaller. After the dictionary is generated using the first file in a
subcompaction, it is loaded into the compression library before writing each
block in each subsequent file of that subcompaction.

On the read path, gets the dictionary from the metablock, if it exists. Then,
loads that dictionary into the compression library before reading each block.

Test Plan: new unit test

Reviewers: yhchiang, IslamAbdelRahman, cyan, sdong

Reviewed By: sdong

Subscribers: andrewkr, yoshinorim, kradhakrishnan, dhruba, leveldb

Differential Revision: https://reviews.facebook.net/D52287
2016-04-27 17:36:03 -07:00
Naitik Shah 99a3bf8f62 Merge pull request #1068 from daaku/c-purge-old-backups
rocksdb_backup_engine_purge_old_backups for C libraries
2016-04-22 13:49:59 -07:00
Naitik Shah c146c9be18 rocksdb_create_mem_env to allow C libraries to create mem env (#1066) 2016-04-22 13:25:05 -07:00
Naitik Shah 6da70c5815 expose more options in the c api (#1067) 2016-04-22 13:24:09 -07:00
Naitik Shah 6f01687aae C rocksdb_create_iterators to expose NewIterators (#1069) 2016-04-22 13:22:21 -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
Baraa Hamodi 21e95811d1 Updated all copyright headers to the new format. 2016-02-09 15:12:00 -08:00