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Revision Author Date Message Commit Date
3690276 Disallow to open RandomRW file if the file doesn't exist Summary: The only use of RandomRW is to change seqno when bulkloading, and in this use case, the file should exist. We should fail the file opening in this case. Closes https://github.com/facebook/rocksdb/pull/3827 Differential Revision: D7913719 Pulled By: siying fbshipit-source-id: 62cf6734f1a6acb9e14f715b927da388131c3492 09 May 2018, 17:27:26 UTC
ddfd252 Make BlockIter final Summary: Now BlockBasedTableIterator directly uses BlockIter. By making BlockIter final, we can prevent unintended virtual function overriding. Closes https://github.com/facebook/rocksdb/pull/3828 Differential Revision: D7933816 Pulled By: siying fbshipit-source-id: 026a08cb5c5b6d3d6f44743152b4251da4756f2c 09 May 2018, 17:27:26 UTC
f92cd2f Introduce and use the option to disable stall notifications structures Summary: and code. Removing this helps with insert performance. Closes https://github.com/facebook/rocksdb/pull/3830 Differential Revision: D7921030 Pulled By: siying fbshipit-source-id: 84e80d50a7ef96f5441c51c9a0d089c50217cce2 09 May 2018, 17:13:53 UTC
cee138c Add missing options in BuildColumnfamilyOptions Summary: soft_pending_compaction_bytes_limit and hard_pending_compaction_bytes_limit are added to BuildColumnfamilyOptions. Closes https://github.com/facebook/rocksdb/pull/3823 Differential Revision: D7909246 Pulled By: maysamyabandeh fbshipit-source-id: 89032efbf6b5bd302ea50cbd7a234977984a1fca 08 May 2018, 19:13:18 UTC
4bf169f Disable readahead when using mmap for reads Summary: `ReadaheadRandomAccessFile` had an unwritten assumption, which was that its wrapped file's `Read()` function always copies into the provided scratch buffer. Actually this was not true when the wrapped file was `PosixMmapReadableFile`, whose `Read()` implementation does no copying and instead returns a `Slice` pointing directly into the `mmap`'d memory region. This PR: - prevents `ReadaheadRandomAccessFile` from ever wrapping mmap readable files - adds an assert for the assumption `ReadaheadRandomAccessFile` makes about the wrapped file's use of scratch buffer Closes https://github.com/facebook/rocksdb/pull/3813 Differential Revision: D7891513 Pulled By: ajkr fbshipit-source-id: dc64a55222d6af280c39a1852ee39e9e9d7cde7d 08 May 2018, 19:13:18 UTC
1d9f24d Link jemalloc Summary: Fix undefined reference to `malloc_*` linking errors on Linux. Closes https://github.com/facebook/rocksdb/pull/3817 Differential Revision: D7899066 Pulled By: ajkr fbshipit-source-id: 18c46569a59608388d6240f1b8ec20c2d2557dec 07 May 2018, 21:28:36 UTC
9470ee4 Allows other cmake-specific "true" for USE_RTTI. Summary: People also use ON/OFF, TRUE/FALSE and other switch options that is allowed by cmake. Closes https://github.com/facebook/rocksdb/pull/3814 Differential Revision: D7899032 Pulled By: ajkr fbshipit-source-id: b71511af59e0a78eedafb639b5002c47050bf3c2 07 May 2018, 21:28:36 UTC
6d6e01c Search paths provided by intel's "tbbvars.sh". Summary: TBBROOT and LIBRARY_PATH are set in env by the script. With TBB 2018 the library path is $TBBROOT/lib/intel64/gcc4.7 for anything above gcc 4.7, which is both compiler and architecture related. We cannot simply do ${TBB_ROOT_DIR}/lib. Closes https://github.com/facebook/rocksdb/pull/3815 Differential Revision: D7899006 Pulled By: ajkr fbshipit-source-id: 159ab1f6a5c40452ed6aa8d79300206953d916c2 07 May 2018, 21:28:36 UTC
d72a51e Split FaultInjectionTest.FaultTest to avoid timeout Summary: tsan flavor of this test occasionally times out in our test infra. The patch split the test to two, each working on half of the option range. Before: [ OK ] FaultTest/FaultInjectionTest.FaultTest/0 (5918 ms) [ OK ] FaultTest/FaultInjectionTest.FaultTest/1 (5336 ms) After: [ OK ] FaultTest/FaultInjectionTestSplitted.FaultTest/0 (2930 ms) [ OK ] FaultTest/FaultInjectionTestSplitted.FaultTest/1 (2676 ms) [ OK ] FaultTest/FaultInjectionTestSplitted.FaultTest/2 (2759 ms) [ OK ] FaultTest/FaultInjectionTestSplitted.FaultTest/3 (2546 ms) Closes https://github.com/facebook/rocksdb/pull/3819 Differential Revision: D7894975 Pulled By: maysamyabandeh fbshipit-source-id: 809f1411cbcc27f8aa71a6b29a16b039f51b67c9 07 May 2018, 19:29:58 UTC
72942ad Recommit "Avoid adding tombstones of the same file to RangeDelAggregator multiple times" Summary: The origin commit #3635 will hurt performance for users who aren't using range deletions, because unneeded std::set operations, so it was reverted by commit 44653c7b7aabe821e671946e732dda7ae6b43d1b. (see #3672) To fix this, move the set to and add a check in , i.e., file will be added only if is non-nullptr. The db_bench command which find the performance regression: > ./db_bench --benchmarks=fillrandom,seekrandomwhilewriting --threads=1 --num=1000000 --reads=150000 --key_size=66 > --value_size=1262 --statistics=0 --compression_ratio=0.5 --histogram=1 --seek_nexts=1 --stats_per_interval=1 > --stats_interval_seconds=600 --max_background_flushes=4 --num_multi_db=1 --max_background_compactions=16 --seed=1522388277 > -write_buffer_size=1048576 --level0_file_num_compaction_trigger=10000 --compression_type=none Before and after the modification, I re-run this command on the machine, the results of are as follows: **fillrandom** Table | P50 | P75 | P99 | P99.9 | P99.99 | ---- | --- | --- | --- | ----- | ------ | before commit | 5.92 | 8.57 | 19.63 | 980.97 | 12196.00 | after commit | 5.91 | 8.55 | 19.34 | 965.56 | 13513.56 | **seekrandomwhilewriting** Table | P50 | P75 | P99 | P99.9 | P99.99 | ---- | --- | --- | --- | ----- | ------ | before commit | 1418.62 | 1867.01 | 3823.28 | 4980.99 | 9240.00 | after commit | 1450.54 | 1880.61 | 3962.87 | 5429.60 | 7542.86 | Closes https://github.com/facebook/rocksdb/pull/3800 Differential Revision: D7874245 Pulled By: ajkr fbshipit-source-id: 2e8bec781b3f7399246babd66395c88619534a17 04 May 2018, 23:45:15 UTC
4c5a323 Fix db_stress memory leak ASAN error Summary: In case `--expected_values_path` is unset, we allocate a buffer internally to hold the expected DB state. This PR makes sure it is freed. Closes https://github.com/facebook/rocksdb/pull/3804 Differential Revision: D7874694 Pulled By: ajkr fbshipit-source-id: a8f7655e009507c4e639ceebfc3525d69c856e3b 04 May 2018, 23:45:15 UTC
fc522bd Evenly split HarnessTest.Randomized Summary: Currently HarnessTest.Randomized is already split but some of the splits are faster than the others. The reason is that each split takes a continuous range of the generated args and the test with later args takes longer to finish. The patch evenly split the args among splits in a round robin fashion. Before: ``` [ OK ] HarnessTest.Randomized1n2 (2278 ms) [ OK ] HarnessTest.Randomized3n4 (1095 ms) [ OK ] HarnessTest.Randomized5 (658 ms) [ OK ] HarnessTest.Randomized6 (1258 ms) [ OK ] HarnessTest.Randomized7 (6476 ms) [ OK ] HarnessTest.Randomized8 (8182 ms) ``` After ``` [ OK ] HarnessTest.Randomized1 (2649 ms) [ OK ] HarnessTest.Randomized2 (2645 ms) [ OK ] HarnessTest.Randomized3 (2577 ms) [ OK ] HarnessTest.Randomized4 (2490 ms) [ OK ] HarnessTest.Randomized5 (2553 ms) [ OK ] HarnessTest.Randomized6 (2560 ms) [ OK ] HarnessTest.Randomized7 (2501 ms) [ OK ] HarnessTest.Randomized8 (2574 ms) ``` Closes https://github.com/facebook/rocksdb/pull/3808 Differential Revision: D7882663 Pulled By: maysamyabandeh fbshipit-source-id: 09b749a9684b6d7d65466aa4b00c5334a49e833e 04 May 2018, 22:28:06 UTC
171f415 Rename vars to satisfy unity built Summary: Tested by "make unity_test" Closes https://github.com/facebook/rocksdb/pull/3807 Differential Revision: D7882657 Pulled By: maysamyabandeh fbshipit-source-id: 84862c18d7f2fc762bd96ad070eaeb6936e45159 04 May 2018, 22:28:06 UTC
4d40b10 Add USE_RTTI and default behavior to CMakeLists Summary: Proposed fix for #3701 Closes https://github.com/facebook/rocksdb/pull/3801 Differential Revision: D7868264 Pulled By: gfosco fbshipit-source-id: 013963ed3d172c8dc2abd1dd5982580082ca5d2d 04 May 2018, 22:13:03 UTC
6fc1bcc Fix crash test allocation error under TSAN Summary: We were seeing the following error: "ThreadSanitizer: DenseSlabAllocator overflow. Dying." It is fixable by mmap'ing a smaller region for keys' expected values, which this PR achieves by reducing the number of keys. Closes https://github.com/facebook/rocksdb/pull/3803 Differential Revision: D7874478 Pulled By: ajkr fbshipit-source-id: 433939f5cb92410ab4777d540cb0cc2ee0fe6c2e 04 May 2018, 20:44:04 UTC
a703432 MaxFileSizeForLevel: adjust max_file_size for dynamic level compaction Summary: `MutableCFOptions::RefreshDerivedOptions` always assume base level is L1, which is not true when `level_compaction_dynamic_level_bytes=true` and Level based compaction is used. This PR fixes this by recomputing `max_file_size` at query time (in `MaxFileSizeForLevel`) Fixes https://github.com/facebook/rocksdb/issues/3229 In master: ``` Level Files Size(MB) -------------------- 0 14 846 1 0 0 2 0 0 3 0 0 4 0 0 5 15 366 6 11 481 Cumulative compaction: 3.83 GB write, 2.27 GB read ``` In branch: ``` Level Files Size(MB) -------------------- 0 9 544 1 0 0 2 0 0 3 0 0 4 0 0 5 0 0 6 445 935 Cumulative compaction: 2.91 GB write, 1.46 GB read ``` db_bench command used: ``` ./db_bench --benchmarks="fillrandom,deleterandom,fillrandom,levelstats,stats" --statistics -deletes=5000 -db=tmp -compression_type=none --num=20000 -value_size=100000 -level_compaction_dynamic_level_bytes=true -target_file_size_base=2097152 -target_file_size_multiplier=2 ``` Closes https://github.com/facebook/rocksdb/pull/3755 Differential Revision: D7721381 Pulled By: miasantreble fbshipit-source-id: 39afb8503190bac3b466adf9bbf2a9b3655789f8 03 May 2018, 23:42:13 UTC
934f96d Better destroydb Summary: Delete archive directory before WAL folder since archive may be contained as a subfolder. Also improve loop readability. Closes https://github.com/facebook/rocksdb/pull/3797 Differential Revision: D7866378 Pulled By: riversand963 fbshipit-source-id: 0c45d97677ce6fbefa3f8d602ef5e2a2a925e6f5 03 May 2018, 23:13:09 UTC
a8d77ca Speedup ManualCompactionTest.Test Summary: ManualCompactionTest.Test occasionally times out in tsan flavor of our test infra. The patch reduces the number of keys to make the test run faster. The change does not seem to negatively impact the coverage of the test. Closes https://github.com/facebook/rocksdb/pull/3802 Differential Revision: D7865596 Pulled By: maysamyabandeh fbshipit-source-id: b4f60e32c3ae1677e25506f71c766e33fa985785 03 May 2018, 23:13:09 UTC
d595492 Skip deleted WALs during recovery Summary: This patch record min log number to keep to the manifest while flushing SST files to ignore them and any WAL older than them during recovery. This is to avoid scenarios when we have a gap between the WAL files are fed to the recovery procedure. The gap could happen by for example out-of-order WAL deletion. Such gap could cause problems in 2PC recovery where the prepared and commit entry are placed into two separate WAL and gap in the WALs could result into not processing the WAL with the commit entry and hence breaking the 2PC recovery logic. Before the commit, for 2PC case, we determined which log number to keep in FindObsoleteFiles(). We looked at the earliest logs with outstanding prepare entries, or prepare entries whose respective commit or abort are in memtable. With the commit, the same calculation is done while we apply the SST flush. Just before installing the flush file, we precompute the earliest log file to keep after the flush finishes using the same logic (but skipping the memtables just flushed), record this information to the manifest entry for this new flushed SST file. This pre-computed value is also remembered in memory, and will later be used to determine whether a log file can be deleted. This value is unlikely to change until next flush because the commit entry will stay in memtable. (In WritePrepared, we could have removed the older log files as soon as all prepared entries are committed. It's not yet done anyway. Even if we do it, the only thing we loss with this new approach is earlier log deletion between two flushes, which does not guarantee to happen anyway because the obsolete file clean-up function is only executed after flush or compaction) This min log number to keep is stored in the manifest using the safely-ignore customized field of AddFile entry, in order to guarantee that the DB generated using newer release can be opened by previous releases no older than 4.2. Closes https://github.com/facebook/rocksdb/pull/3765 Differential Revision: D7747618 Pulled By: siying fbshipit-source-id: d00c92105b4f83852e9754a1b70d6b64cb590729 03 May 2018, 22:43:09 UTC
cfb8665 WritePrepared Txn: enable rollback in stress test Summary: Rollback was disabled in stress test since there was a concurrency issue in WritePrepared rollback algorithm. The issue is fixed by caching the column family handles in WritePrepared to skip getting them from the db when needed for rollback. Tested by running transaction stress test under tsan. Closes https://github.com/facebook/rocksdb/pull/3785 Differential Revision: D7793727 Pulled By: maysamyabandeh fbshipit-source-id: d81ab6fda0e53186ca69944cfe0712ce4869451e 03 May 2018, 01:13:05 UTC
5bed8a0 WritePrepared Txn: split SeqAdvanceConcurrentTest Summary: The tsan flavor of SeqAdvanceConcurrentTest times out in our test infra. The patch splits it into 10 tests. On my vm before: [ OK ] WritePreparedTransactionTest/WritePreparedTransactionTest.SeqAdvanceConcurrentTest/0 (5194 ms) after: [ OK ] OneWriteQueue/SeqAdvanceConcurrentTest.SeqAdvanceConcurrentTest/0 (1906 ms) Closes https://github.com/facebook/rocksdb/pull/3799 Differential Revision: D7854515 Pulled By: maysamyabandeh fbshipit-source-id: 4fbac42a1f974326cbc237f8cb9d6232d379c431 03 May 2018, 01:13:05 UTC
6cab318 avoid double delete on dummy record insertion failure Summary: When the dummy record insertion fails, there is no need to explicitly delete the block as it will be registered for cleanup regardless. Closes https://github.com/facebook/rocksdb/pull/3688 Differential Revision: D7537741 Pulled By: miasantreble fbshipit-source-id: fcd3a3d3d382ee8e2c7ced0a4980e683d93a16d6 01 May 2018, 23:01:28 UTC
acb61b7 Adjust pread/pwrite to return Status Summary: Returning bytes_read causes the caller to call GetLastError() to report failure but the lasterror may be overwritten by then so we lose the error code. Fix up CMake file to include xpress source code only when needed. Fix warning for the uninitialized var. Closes https://github.com/facebook/rocksdb/pull/3795 Differential Revision: D7832935 Pulled By: anand1976 fbshipit-source-id: 4be21affb9b85d361b96244f4ef459f492b7cb2b 01 May 2018, 20:42:46 UTC
19fde54 initialize local variable for UBSAN in PosixEnv function Summary: this is a repeat commit of a8a28da2159648a2f72c35ea507371df8a97a2a9, which got reverted together with 6afe22db2e667799d8c903db61750d676bffe152, but forgotten about when that commit was un-reverted in 46152d53bf58748fc3ed0681d8970c342bcfc47a. Closes https://github.com/facebook/rocksdb/pull/3796 Differential Revision: D7826077 Pulled By: ajkr fbshipit-source-id: edb22375da56e2feda50c5b35f942f4d2d52b19c 01 May 2018, 20:27:05 UTC
46152d5 Second attempt at db_stress crash-recovery verification Summary: - Original commit: a4fb1f8c049ee9d61a9da8cf23b64d2c7d36a33f - Revert commit (we reverted as a quick fix to get crash tests passing): 6afe22db2e667799d8c903db61750d676bffe152 This PR includes the contents of the original commit plus two bug fixes, which are: - In whitebox crash test, only set `--expected_values_path` for `db_stress` runs in the first half of the crash test's duration. In the second half, a fresh DB is created for each `db_stress` run, so we cannot maintain expected state across `db_stress` runs. - Made `Exists()` return true for `UNKNOWN_SENTINEL` values. I previously had an assert in `Exists()` that value was not `UNKNOWN_SENTINEL`. But it is possible for post-crash-recovery expected values to be `UNKNOWN_SENTINEL` (i.e., if the crash happens in the middle of an update), in which case this assertion would be tripped. The effect of returning true in this case is there may be cases where a `SingleDelete` deletes no data. But if we had returned false, the effect would be calling `SingleDelete` on a key with multiple older versions, which is not supported. Closes https://github.com/facebook/rocksdb/pull/3793 Differential Revision: D7811671 Pulled By: ajkr fbshipit-source-id: 67e0295bfb1695ff9674837f2e05bb29c50efc30 30 April 2018, 19:27:34 UTC
282099f fix missing perfcontext destroy declare in C API Summary: `rocksdb_perfcontext_destroy` declare is missing in C API. Closes https://github.com/facebook/rocksdb/pull/3787 Differential Revision: D7816490 Pulled By: ajkr fbshipit-source-id: 3a488607bfc897c7ce846a1b3c2b7af693134d0d 30 April 2018, 18:43:09 UTC
c9ace1d expose WAL iterator in the C API Summary: A minor change: I wrapped TransactionLogIterator for the C API. I needed that for the golang binding. Closes https://github.com/facebook/rocksdb/pull/3304 Differential Revision: D6628736 Pulled By: miasantreble fbshipit-source-id: 3374f3c64b1d7b225696b8767090917761e2f30a 27 April 2018, 23:56:59 UTC
6afe22d revert db_stress crash-recovery verification Summary: crash-recovery verification is failing in the whitebox testing, which may or may not be a valid correctness issue -- need more time to investigate. In the meantime, reverting so we don't mask other failures. Closes https://github.com/facebook/rocksdb/pull/3786 Differential Revision: D7794516 Pulled By: ajkr fbshipit-source-id: 28ccdfdb9ec9b3b0fb08c15cbf9d2e282201ff33 27 April 2018, 19:57:01 UTC
459bb90 remove prefixscanrandom from db_bench help Summary: fix issue reported in https://github.com/facebook/rocksdb/issues/3757 Closes https://github.com/facebook/rocksdb/pull/3784 Differential Revision: D7794107 Pulled By: miasantreble fbshipit-source-id: 43535074fcb82adb5656bcb916284b2dfc5cbb64 27 April 2018, 19:13:19 UTC
ed7a95b Add max_subcompactions as a compaction option Summary: Sometimes we want to compact files as fast as possible, but don't want to set a large `max_subcompactions` in the `DBOptions` by default. I add a `max_subcompactions` options to `CompactionOptions` so that we can choose a proper concurrency dynamically. Closes https://github.com/facebook/rocksdb/pull/3775 Differential Revision: D7792357 Pulled By: ajkr fbshipit-source-id: 94f54c3784dce69e40a229721a79a97e80cd6a6c 27 April 2018, 18:57:39 UTC
7dfbe33 Rename pending_compaction_ to queued_for_compaction_. Summary: We use `queued_for_flush_` to indicate a column family has been added to the flush queue. Similarly and to be consistent in our naming, we need to use `queued_for_compaction_` to indicate a column family has been added to the compaction queue. In the past we used `pending_compaction_` which can also be ambiguous. Closes https://github.com/facebook/rocksdb/pull/3781 Differential Revision: D7790063 Pulled By: riversand963 fbshipit-source-id: 6786b11a4fcaea36dc9b4672233dbe042f921804 27 April 2018, 18:12:01 UTC
513b5ce Rename pending_flush_ to queued_for_flush_. Summary: With ColumnFamilyData::pending_flush_, we have the following code snippet in DBImpl::ScheedulePendingFlush ``` if (!cfd->pending_flush() && cfd->imm()->IsFlushPending()) { ... } ``` `Pending` is ambiguous, and I feel `queued_for_flush` is a better name, especially for the sake of readability. Closes https://github.com/facebook/rocksdb/pull/3777 Differential Revision: D7783066 Pulled By: riversand963 fbshipit-source-id: f1bd8c8bfe5eafd2c94da0d8566c9b2b6bb57229 27 April 2018, 04:12:51 UTC
37cd617 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 27 April 2018, 04:12:51 UTC
db36f22 Allow options file in db_stress and db_crashtest Summary: - When options file is provided to db_stress, take supported options from the file instead of from flags - Call `BuildOptionsTable` after `Open` so it can use `options_` once it has been populated either from flags or from file - Allow options filename to be passed via `db_crashtest.py` Closes https://github.com/facebook/rocksdb/pull/3768 Differential Revision: D7755331 Pulled By: ajkr fbshipit-source-id: 5205cc5deb0d74d677b9832174153812bab9a60a 27 April 2018, 01:42:07 UTC
7004e45 Remove block-based table assertion for non-empty filter block Summary: 7a6353bd1c516fe3f7118248c77035697c5ac247 prevents empty filter blocks from being written for SST files containing range deletions only. However the assertion this PR removes is still a problem as we could be reading from a DB generated by a RocksDB build without the 7a6353bd1c516fe3f7118248c77035697c5ac247 patch. So remove the assertion. We already don't do this check when `cache_index_and_filter_blocks=false`, so it should be safe. Closes https://github.com/facebook/rocksdb/pull/3773 Differential Revision: D7769964 Pulled By: ajkr fbshipit-source-id: 7285762446f2cd2ccf16efd7a988a106fbb0d8d3 26 April 2018, 21:43:11 UTC
63c965c Sync parent directory after deleting a file in delete scheduler Summary: sync parent directory after deleting a file in delete scheduler. Otherwise, trim speed may not be as smooth as what we want. Closes https://github.com/facebook/rocksdb/pull/3767 Differential Revision: D7760136 Pulled By: siying fbshipit-source-id: ec131d53b61953f09c60d67e901e5eeb2716b05f 26 April 2018, 20:58:20 UTC
7e4e381 Fix the bloom filter skipping empty prefixes Summary: bc0da4b5125ac4f43c88879522013814355338e7 optimized bloom filters by skipping duplicate entires when the whole key and prefixes are both added to the bloom. It however used empty string as the initial value of the last entry added to the bloom. This is incorrect since empty key/prefix are valid entires by themselves. This patch fixes that. Closes https://github.com/facebook/rocksdb/pull/3776 Differential Revision: D7778803 Pulled By: maysamyabandeh fbshipit-source-id: d5a065daebee17f9403cac51e9d5626aac87bfbc 26 April 2018, 20:28:31 UTC
e5a4dac WritePrepared Txn: disable rollback in stress test Summary: WritePrepared rollback implementation is not ready to be invoked in the middle of workload. This is due the lack of synchronization to obtain the cf handle from db. Temporarily disabling this until the problem with rollback is fixed. Closes https://github.com/facebook/rocksdb/pull/3772 Differential Revision: D7769041 Pulled By: maysamyabandeh fbshipit-source-id: 0e3b0ce679bc2afba82e653a40afa3f045722754 26 April 2018, 16:27:55 UTC
7c9f23e Rate limiter should be allowed to share between different rocksdb instances in C API Summary: Currently, the `rocksdb_options_set_ratelimiter` in `c.cc` will change the input to nil, which make it is not possible to use the shared rate limiter create by `rocksdb_ratelimiter_create` in different rocksdb option. In this pr, I changed it to shared ptr. Closes https://github.com/facebook/rocksdb/pull/3758 Differential Revision: D7749740 Pulled By: ajkr fbshipit-source-id: c6121f8ca75402afdb4b295ce63c2338d253a1b5 25 April 2018, 22:57:48 UTC
406b951 Fix clang build failure with -Wgnu-redeclared-enum Summary: In include/rocksdb/db.h, enum EntryType is redeclared even though original declaration in types.h in included. Closes https://github.com/facebook/rocksdb/pull/3766 Differential Revision: D7765504 Pulled By: anand1976 fbshipit-source-id: 622a8ecb306993915be1b9dd5cdd79dbc6a4ea05 25 April 2018, 22:42:46 UTC
13a0bd9 cmake: add options for enabling TBB and NUMA support Summary: see also https://github.com/facebook/rocksdb/issues/3036 Signed-off-by: Kefu Chai <tchaikov@gmail.com> Closes https://github.com/facebook/rocksdb/pull/3750 Differential Revision: D7765170 Pulled By: ajkr fbshipit-source-id: 455788b3131bf62a4987a65684b757e68473eed9 25 April 2018, 21:26:55 UTC
dfc61e7 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 25 April 2018, 20:42:02 UTC
9b89479 Pass -latomic to linker when using clang Summary: clang compilation is failing due to a4fb1f8c049ee9d61a9da8cf23b64d2c7d36a33f. In that commit I added a call to `std::atomic::is_lock_free` which was evidently relying on a compiler builtin only present in gcc. Drawbacks to this fix are: - users may need to install libatomic - there might be cases where clang is used even though USE_CLANG is unset (e.g., when clang is the only available compiler). I didn't figure out how to add -latomic in those cases... An alternative fix mentioned in http://lists.llvm.org/pipermail/llvm-bugs/2017-August/057263.html is using -stdlib=libc++ with clang. Closes https://github.com/facebook/rocksdb/pull/3769 Differential Revision: D7756261 Pulled By: ajkr fbshipit-source-id: 26888300683fa9970ab5950239d1aa217e8efd49 25 April 2018, 19:13:41 UTC
a4fb1f8 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 24 April 2018, 22:58:22 UTC
bc0da4b Skip duplicate bloom keys when whole_key and prefix are mixed Summary: Currently we rely on FilterBitsBuilder to skip the duplicate keys. It does that by comparing that hash of the key to the hash of the last added entry. This logic breaks however when we have whole_key_filtering mixed with prefix blooms as their addition to FilterBitsBuilder will be interleaved. The patch fixes that by comparing the last whole key and last prefix with the whole key and prefix of the new key respectively and skip the call to FilterBitsBuilder if it is a duplicate. Closes https://github.com/facebook/rocksdb/pull/3764 Differential Revision: D7744413 Pulled By: maysamyabandeh fbshipit-source-id: 15df73bbbafdfd754d4e1f42ea07f47b03bc5eb8 24 April 2018, 17:58:16 UTC
090c78a 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 24 April 2018, 15:41:51 UTC
affe01b Improve write time breakdown stats Summary: There's a group of stats in PerfContext for profiling the write path. They break down the write time into WAL write, memtable insert, throttling, and everything else. We use these stats a lot for figuring out the cause of slow writes. These stats got a bit out of date and are now categorizing some interesting things as "everything else", and also do some double counting. This PR fixes it and adds two new stats: time spent waiting for other threads of the batch group, and time spent waiting for scheduling flushes/compactions. Probably these will be enough to explain all the occasional abnormally slow (multiple seconds) writes that we're seeing. Closes https://github.com/facebook/rocksdb/pull/3602 Differential Revision: D7251562 Pulled By: al13n321 fbshipit-source-id: 0a2d0f5a4fa5677455e1f566da931cb46efe2a0d 24 April 2018, 00:58:54 UTC
d5afa73 Revert "Skip deleted WALs during recovery" Summary: This reverts commit 73f21a7b2177aeb82b9f518222e2b9ea8fbb7c4f. It breaks compatibility. When created a DB using a build with this new change, opening the DB and reading the data will fail with this error: "Corruption: Can't access /000000.sst: IO error: while stat a file for size: /tmp/xxxx/000000.sst: No such file or directory" This is because the dummy AddFile4 entry generated by the new code will be treated as a real entry by an older build. The older build will think there is a real file with number 0, but there isn't such a file. Closes https://github.com/facebook/rocksdb/pull/3762 Differential Revision: D7730035 Pulled By: siying fbshipit-source-id: f2051859eff20ef1837575ecb1e1bb96b3751e77 23 April 2018, 19:01:26 UTC
a8a28da Avoid directory renames in BackupEngine Summary: We used to name private directories like "1.tmp" while BackupEngine populated them, and then rename without the ".tmp" suffix (i.e., rename "1.tmp" to "1") after all files were copied. On glusterfs, directory renames like this require operations across many hosts, and partial failures have caused operational problems. Fortunately we don't need to rename private directories. We already have a meta-file that uses the tempfile-rename pattern to commit a backup atomically after all its files have been successfully copied. So we can copy private files directly to their final location, so now there's no directory rename. Closes https://github.com/facebook/rocksdb/pull/3749 Differential Revision: D7705610 Pulled By: ajkr fbshipit-source-id: fd724a28dd2bf993ce323a5f2cb7e7d6980cc346 21 April 2018, 00:28:33 UTC
2e72a58 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 20 April 2018, 22:42:42 UTC
bb2a2ec WritePrepared Txn: rollback via commit Summary: Currently WritePrepared rolls back a transaction with prepare sequence number prepare_seq by i) write a single rollback batch with rollback_seq, ii) add <rollback_seq, rollback_seq> to commit cache, iii) remove prepare_seq from PrepareHeap. This is correct assuming that there is no snapshot taken when a transaction is rolled back. This is the case the way MySQL does rollback which is after recovery. Otherwise if max_evicted_seq advances the prepare_seq, the live snapshot might assume data as committed since it does not find them in CommitCache. The change is to simply add <prepare_seq. rollback_seq> to commit cache before removing prepare_seq from PrepareHeap. In this way if max_evicted_seq advances prpeare_seq, the existing mechanism that we have to check evicted entries against live snapshots will make sure that the live snapshot will not see the data of rolled back transaction. Closes https://github.com/facebook/rocksdb/pull/3745 Differential Revision: D7696193 Pulled By: maysamyabandeh fbshipit-source-id: c9a2d46341ddc03554dded1303520a1cab74ef9c 20 April 2018, 22:28:19 UTC
dbdaa46 Add a stat for MultiGet keys found, update memtable hit/miss stats Summary: 1. Add a new ticker stat rocksdb.number.multiget.keys.found to track the number of keys successfully read 2. Update rocksdb.memtable.hit/miss in DBImpl::MultiGet(). It was being done in DBImpl::GetImpl(), but not MultiGet Closes https://github.com/facebook/rocksdb/pull/3730 Differential Revision: D7677364 Pulled By: anand1976 fbshipit-source-id: af22bd0ef8ddc5cf2b4244b0a024e539fe48bca5 20 April 2018, 22:28:19 UTC
c3d1e36 WritePrepared Txn: enable TryAgain for duplicates at the end of the batch Summary: The WriteBatch::Iterate will try with a larger sequence number if the memtable reports a duplicate. This status is specified with TryAgain status. So far the assumption was that the last entry in the batch will never return TryAgain, which is correct when WAL is created via WritePrepared since it always appends a batch separator if a natural one does not exist. However when reading a WAL generated by WriteCommitted this batch separator might not exist. Although WritePrepared is not supposed to be able to read the WAL generated by WriteCommitted we should avoid confusing scenarios in which the behavior becomes unpredictable. The path fixes that by allowing TryAgain even for the last entry of the write batch. Closes https://github.com/facebook/rocksdb/pull/3747 Differential Revision: D7708391 Pulled By: maysamyabandeh fbshipit-source-id: bfaddaa9b14a4cdaff6977f6f63c789a6ab1ee0d 20 April 2018, 22:28:19 UTC
17e0403 Propagate fill_cache config to partitioned index iterator Summary: Currently the partitioned index iterator creates a new ReadOptions which ignores the fill_cache config set to ReadOptions passed by the user. The patch propagates fill_cache from the user's ReadOptions to that of partition index iterator. Also it clarifies the contract of fill_cache that i) it does not apply to filters, ii) it still charges block cache for the size of the data block, it still pin the block if it is already in the block cache. Closes https://github.com/facebook/rocksdb/pull/3739 Differential Revision: D7678308 Pulled By: maysamyabandeh fbshipit-source-id: 53ed96424ae922e499e2d4e3580ddc3f0db893da 20 April 2018, 22:13:05 UTC
dee95a1 Fix GitHub issue #3716: gcc-8 warnings Summary: Fix the following gcc-8 warnings: - conflicting C language linkage declaration [-Werror] - writing to an object with no trivial copy-assignment [-Werror=class-memaccess] - array subscript -1 is below array bounds [-Werror=array-bounds] Solves https://github.com/facebook/rocksdb/issues/3716 Closes https://github.com/facebook/rocksdb/pull/3736 Differential Revision: D7684161 Pulled By: yiwu-arbug fbshipit-source-id: 47c0423d26b74add251f1d3595211eee1e41e54a 20 April 2018, 20:42:47 UTC
8a9c7f7 fix compilation error: implicit conversion loses integer precision Summary: Fix compilation error with clang: > tools/db_stress.cc:2598:21: error: implicit conversion loses integer precision: 'gflags::uint64' (aka 'unsigned long') to 'uint32_t' (aka 'unsigned int') [-Werror,-Wshorten-64-to-32] Random rand(FLAGS_seed); ~~~~ ^~~~~~~~~~ Closes https://github.com/facebook/rocksdb/pull/3746 Differential Revision: D7703209 Pulled By: miasantreble fbshipit-source-id: 18c56a5138a2f308e4213594bc82e8e64bc21570 20 April 2018, 01:57:43 UTC
69faddb CMake: Read rocksdb version from version.h header file Summary: This replaces reading the rocksdb version by external shell script. This does not work reliably on Windows (I wander how it works on AppVeyor). Closes https://github.com/facebook/rocksdb/pull/3737 Differential Revision: D7703106 Pulled By: ajkr fbshipit-source-id: 4079c7c77431757e9ddc801363ed896b18fdbf23 20 April 2018, 00:42:11 UTC
e1e826b check return status for Sync() and Append() calls to avoid corruption Summary: Right now in `SyncClosedLogs`, `CopyFile`, and `AddRecord`, where `Sync` and `Append` are invoked in a loop, the error status are not checked. This could lead to potential corruption as later calls will overwrite the error status. Closes https://github.com/facebook/rocksdb/pull/3740 Differential Revision: D7678848 Pulled By: miasantreble fbshipit-source-id: 4b0b412975989dfe80348f73217b9c4122a4bd77 19 April 2018, 21:13:46 UTC
ad51168 Add block cache related DB properties Summary: Add DB properties "rocksdb.block-cache-capacity", "rocksdb.block-cache-usage", "rocksdb.block-cache-pinned-usage" to show block cache usage. Closes https://github.com/facebook/rocksdb/pull/3734 Differential Revision: D7657180 Pulled By: yiwu-arbug fbshipit-source-id: dd34a019d5878dab539c51ee82669e97b2b745fd 19 April 2018, 04:42:25 UTC
3cea613 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 19 April 2018, 00:27:56 UTC
6d06be2 Improve db_stress with transactions Summary: db_stress was already capable running transactions by setting use_txn. Running it under stress showed a couple of problems fixed in this patch. - The uncommitted transaction must be either rolled back or commit after recovery. - Current implementation of WritePrepared transaction cannot handle cf drop before crash. Clarified that in the comments and added safety checks. When running with use_txn, clear_column_family_one_in must be set to 0. Closes https://github.com/facebook/rocksdb/pull/3733 Differential Revision: D7654419 Pulled By: maysamyabandeh fbshipit-source-id: a024bad80a9dc99677398c00d29ff17d4436b7f3 18 April 2018, 23:32:35 UTC
2ee1496 Add missing whitespace. Summary: Closes https://github.com/facebook/rocksdb/pull/3729 Differential Revision: D7645465 Pulled By: riversand963 fbshipit-source-id: a64da0960fe6c39847ef848b8888fe9a9c1df25d 17 April 2018, 16:57:40 UTC
2c2f388 db_bench fillXXXdeterministic should respect compression type Summary: db_bench fillXXXdeterministic should respect compression type when calling CompactFiles(). Closes https://github.com/facebook/rocksdb/pull/3731 Differential Revision: D7647761 Pulled By: yiwu-arbug fbshipit-source-id: 15e12429e0dd93ece2231b015f2e26c2d94781e6 17 April 2018, 01:01:47 UTC
b4f3339 Improve the comment on TableFactory::NewTableReader() Summary: `DBImpl::AddFile()` has been replaced by `DBImpl::IngestExternalFile()`. Closes https://github.com/facebook/rocksdb/pull/3726 Differential Revision: D7646875 Pulled By: ajkr fbshipit-source-id: 241eb7a8d88527fdc5c26b0c3f6faec3296451f8 16 April 2018, 23:58:20 UTC
5e48811 Initialize a boolean member variable of a struct. Summary: The reason for this initialization is that LLVM UBSAN check will fail due to uninitialized bool. [StackOverflow post](https://stackoverflow.com/questions/31420154/runtime-error-load-of-value-127-which-is-not-a-valid-value-for-type-bool). UBSAN log: > ===== Running external_sst_file_basic_test [==========] Running 7 tests from 1 test case. [----------] Global test environment set-up. [----------] 7 tests from ExternalSSTFileBasicTest [ RUN ] ExternalSSTFileBasicTest.Basic [ OK ] ExternalSSTFileBasicTest.Basic (6 ms) [ RUN ] ExternalSSTFileBasicTest.NoCopy db/external_sst_file_ingestion_job.h:23:8: runtime error: load of value 253, which is not a valid value for type 'bool' miasantreble I've tested this locally using the following command. ``` TEST_TMPDIR=/dev/shm/rocksdb COMPILE_WITH_UBSAN=1 OPT=-g make J=1 -j8 ubsan_check ``` ajkr This PR is related to your review comment in [PR](https://github.com/facebook/rocksdb/pull/3713/). It turns out that, with UBSAN enabled, we must provide a default value for boolean member variables. Closes https://github.com/facebook/rocksdb/pull/3728 Differential Revision: D7642476 Pulled By: riversand963 fbshipit-source-id: 4c09a4b8d271151cb99ae7393db9e4ad9f29762e 16 April 2018, 21:28:01 UTC
af95aec use delete[] to dealloc an array Summary: fix a bug in `db_stress` where an int array was incorrectly deallocated using delete instead of delete[] Closes https://github.com/facebook/rocksdb/pull/3725 Differential Revision: D7634749 Pulled By: miasantreble fbshipit-source-id: 489b776f5f4c03de1824edac5495787ec19cc910 16 April 2018, 06:56:39 UTC
954b496 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 16 April 2018, 00:26:26 UTC
9fcd82e cmake: append rados to THIRDPARTY_LIBS before appending it to LIBS Summary: otherwise the env_librados_test executable will fail to link against librados. Signed-off-by: Kefu Chai <tchaikov@gmail.com> Closes https://github.com/facebook/rocksdb/pull/3724 Differential Revision: D7631542 Pulled By: ajkr fbshipit-source-id: 38afbf21f9aeb7dedfb840aba8b2f8b421f9edb0 15 April 2018, 20:27:54 UTC
81d44f2 fix-typo: add missing periods Summary: Closes https://github.com/facebook/rocksdb/pull/3720 Differential Revision: D7631525 Pulled By: ajkr fbshipit-source-id: 50cf4dc363b0d32b150d963011171a8a6f53a384 15 April 2018, 20:12:23 UTC
28087ac Implemented Knuth shuffle to construct permutation for selecting no_o… Summary: …verwrite_keys. Also changed each no_overwrite_key set to an unordered set, otherwise Knuth shuffle only gets you 2x time improvement, because insertion (and subsequent internal sorting) into an ordered set is the bottleneck. With this change, each iteration of permutation construction and prefix selection takes around 40 secs, as opposed to 360 secs previously. However, this still means that with the default 10 CF per blackbox test case, the test is going to time out given the default interval of 200 secs. Also, there is currently an assertion error affecting all blackbox tests in db_crashtest.py; this assertion error will be fixed in a future PR. Closes https://github.com/facebook/rocksdb/pull/3699 Differential Revision: D7624616 Pulled By: amytai fbshipit-source-id: ea64fbe83407ff96c1c0ecabbc6c830576939393 14 April 2018, 05:13:13 UTC
a0102aa Make database files' permissions configurable Summary: Closes https://github.com/facebook/rocksdb/pull/3709 Differential Revision: D7610227 Pulled By: xiaofeidu008 fbshipit-source-id: 88a52f0f9f96e2195fccde995cf9760b785e9f07 13 April 2018, 20:13:04 UTC
31ee4bf add kEntryRangeDeletion Summary: When there are many range deletions in a range, we want to trigger manual compaction on this range to reclaim disk space as soon as possible and speed up read. After this change, we can collect informations of range deletions and store them into user properties which can guide our manual compaction. Closes https://github.com/facebook/rocksdb/pull/3695 Differential Revision: D7570322 Pulled By: ajkr fbshipit-source-id: c358fa43b0aac6cc954d2eadc7d3bd8015373369 13 April 2018, 18:27:17 UTC
1f5457e 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 13 April 2018, 18:12:54 UTC
c81b0ab Improve accuracy of I/O stats collection of external SST ingestion. Summary: RocksDB supports ingestion of external ssts. If ingestion_options.move_files is true, when performing ingestion, RocksDB first tries to link external ssts. If external SST file resides on a different FS, or the underlying FS does not support hard link, then RocksDB performs actual file copy. However, no matter which choice is made, current code increase bytes-written when updating compaction stats, which is inaccurate when RocksDB does NOT copy file. Rename a sync point. Closes https://github.com/facebook/rocksdb/pull/3713 Differential Revision: D7604151 Pulled By: riversand963 fbshipit-source-id: dd0c0d9b9a69c7d9ffceafc3d9c23371aa413586 13 April 2018, 17:58:42 UTC
3be9b36 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 13 April 2018, 00:59:16 UTC
d15397b WritePrepared Txn: rollback_merge_operands hack Summary: This is a hack as temporary fix of MyRocks with rollbacking the merge operands. The way MyRocks uses merge operands is without protection of locks, which violates the assumption behind the rollback algorithm. They are ok with not being rolled back as it would just create a gap in the autoincrement column. The hack add an option to disable the rollback of merge operands by default and only enables it to let the unit test pass. Closes https://github.com/facebook/rocksdb/pull/3711 Differential Revision: D7597177 Pulled By: maysamyabandeh fbshipit-source-id: 544be0f666c7e7abb7f651ec8b23124e05056728 12 April 2018, 18:58:11 UTC
6f5e644 WritePrepared Txn: fix smallest_prep atomicity issue Summary: We introduced smallest_prep optimization in this commit b225de7e10f02be6d00e96b9fb86dfef880babdf, which enables storing the smallest uncommitted sequence number along with the snapshot. This enables the readers that read from the snapshot to skip further checks and safely assumed the data is committed if its sequence number is less than smallest uncommitted when the snapshot was taken. The problem was that smallest uncommitted and the snapshot must be taken atomically, and the lack of atomicity had led to readers using a smallest uncommitted after the snapshot was taken and hence mistakenly skipping some data. This patch fixes the problem by i) separating the process of removing of prepare entries from the AddCommitted function, ii) removing the prepare entires AFTER the committed sequence number is published, iii) getting smallest uncommitted (from the prepare list) BEFORE taking a snapshot. This guarantees that the smallest uncommitted that is accompanied with a snapshot is less than or equal of such number if it was obtained atomically. Tested by running MySQLStyleTransactionTest/MySQLStyleTransactionTest.TransactionStressTest that was failing sporadically. Closes https://github.com/facebook/rocksdb/pull/3703 Differential Revision: D7581934 Pulled By: maysamyabandeh fbshipit-source-id: dc9d6f4fb477eba75d4d5927326905b548a96a32 12 April 2018, 03:11:51 UTC
d42bd04 Improve visibility into the reasons for compaction. Summary: Add `compaction_reason` as part of event log for event `compaction started`. Add counters for each `CompactionReason`. Closes https://github.com/facebook/rocksdb/pull/3679 Differential Revision: D7550348 Pulled By: riversand963 fbshipit-source-id: a19cff3a678c785aa5ef41aac78b9a5968fcc34d 11 April 2018, 17:58:44 UTC
019d789 fix calling SetOptions on deprecated options Summary: In `cf_options_type_info`, the deprecated options are all considered to have offset zero in the `MutableCFOptions` struct. Previously we weren't checking in `GetMutableOptionsFromStrings` whether the provided option was deprecated or not and simply writing the provided value to the offset specified by `cf_options_type_info`. That meant setting any deprecated option would overwrite the first element in the struct, which is `write_buffer_size`. `db_stress` hit this often since it calls `SetOptions` with `soft_rate_limit=0` and `hard_rate_limit=0`, which are both deprecated so cause `write_buffer_size` to be set to zero, which causes it to crash on the following assertion: ``` db_stress: db/memtable.cc:106: rocksdb::MemTable::MemTable(const rocksdb::InternalKeyComparator&, const rocksdb::ImmutableCFOptions&, const rocksdb::MutableCFOptions&, rocksdb::WriteBufferManager*, rocksdb::SequenceNumber, uint32_t): Assertion `!ShouldScheduleFlush()' failed. ``` We fix it by skipping deprecated options (and logging a warning) when users provide them to `SetOptions`. I didn't want to fail the call for compatibility reasons. Closes https://github.com/facebook/rocksdb/pull/3700 Differential Revision: D7572596 Pulled By: ajkr fbshipit-source-id: bd5d84e14c0c39f30c5d4c6df7c1503d2c28ecf1 11 April 2018, 02:02:09 UTC
d95014b fix some text in comments. Summary: 1. Remove redundant text. 2. Make terminology consistent across all comments and doc of RocksDB. Also do our best to conform to conventions. Specifically, use 'callback' instead of 'call-back' [wikipedia](https://en.wikipedia.org/wiki/Callback_(computer_programming)). Closes https://github.com/facebook/rocksdb/pull/3693 Differential Revision: D7560396 Pulled By: riversand963 fbshipit-source-id: ba8c251c487f4e7d1872a1a8dc680f9e35a6ffb8 10 April 2018, 22:59:24 UTC
2770a94 make MockTimeEnv::current_time_ atomic to fix data race Summary: fix a new TSAN failure https://gist.github.com/miasantreble/7599c33f4e17da1024c67d4540dbe397 Closes https://github.com/facebook/rocksdb/pull/3694 Differential Revision: D7565310 Pulled By: miasantreble fbshipit-source-id: f672c96e925797b34dec6e20b59527e8eebaa825 10 April 2018, 21:13:18 UTC
5ec382b Fix up backupable_db stack corruption. Summary: Fix up OACR(Lint) warnings. Closes https://github.com/facebook/rocksdb/pull/3674 Differential Revision: D7563869 Pulled By: ajkr fbshipit-source-id: 8c1e5045c8a6a2d85b2933fdbc60fde93bf0c9de 10 April 2018, 02:27:24 UTC
d2bcd76 Fix the memory leak with pinned partitioned filters Summary: The existing unit test did not set the level so the check for pinned partitioned filter/index being properly released from the block cache was not properly exercised as they only take effect in level 0. As a result a memory leak in pinned partitioned filters was hidden. The patch fix the test as well as the bug. Closes https://github.com/facebook/rocksdb/pull/3692 Differential Revision: D7559763 Pulled By: maysamyabandeh fbshipit-source-id: 55eff274945838af983c764a7d71e8daff092e4a 09 April 2018, 23:28:19 UTC
65fe8d6 Change a comment Summary: In this case, we add input files of compaction, not outputs. Closes https://github.com/facebook/rocksdb/pull/3686 Differential Revision: D7556781 Pulled By: ajkr fbshipit-source-id: ae135bb6eda60db8f275a9ba2d21c18aaadef5b7 09 April 2018, 20:42:31 UTC
1c27cbf fix intra-L0 FIFO for uncompressed use case Summary: - inflate the argument passed as `max_compact_bytes_per_del_file` by a bit (10%). The intent of this argument is prevent L0 files from being intra-L0 compacted multiple times. Without compression, some intra-L0 compactions exceed this limit (and thus aren't executed), even though none of their files have gone through intra-L0 before. - fix `FindIntraL0Compaction` as it was rejecting some valid intra-L0 compactions. In particular, `compact_bytes_per_del_file` is the work-per-deleted-file for the span [0, span_len), whereas `new_compact_bytes_per_del_file` is the work-per-deleted-file for the span [0, span_len+1). The former is more correct for checking whether we've found an eligible span. Closes https://github.com/facebook/rocksdb/pull/3684 Differential Revision: D7530396 Pulled By: ajkr fbshipit-source-id: cad4f50902bdc428ac9ff6fffb13eb288648d85e 09 April 2018, 20:42:31 UTC
f3a1d9e fix data race Summary: Fix a TSAN failure in `DBRangeDelTest.ValidLevelSubcompactionBoundaries`: https://gist.github.com/miasantreble/712e04b4de2ff7f193c98b1acf07e899 Closes https://github.com/facebook/rocksdb/pull/3691 Differential Revision: D7541400 Pulled By: miasantreble fbshipit-source-id: b0b4538980bce7febd0385e61d6e046580bcaefb 09 April 2018, 19:28:28 UTC
bde1c1a WritePrepared Txn: add stats Summary: Adding some stats that would be helpful to monitor if the DB has gone to unlikely stats that would hurt the performance. These are mostly when we end up needing to acquire a mutex. Closes https://github.com/facebook/rocksdb/pull/3683 Differential Revision: D7529393 Pulled By: maysamyabandeh fbshipit-source-id: f7d36279a8f39bd84d8ddbf64b5c97f670c5d6d9 08 April 2018, 04:56:42 UTC
eb5a295 WritePrepared Txn: add write_committed option to dump_wal Summary: Currently dump_wal cannot print the prepared records from the WAL that is generated by WRITE_PREPARED write policy since the default reaction of the handler is to return NotSupported if markers of WRITE_PREPARED are encountered. This patch enables the admin to pass --write_committed=false option, which will be accordingly passed to the handler. Note that DBFileDumperCommand and DBDumperCommand are still not updated by this patch but firstly they are not urgent and secondly we need to revise this approach later when we also add WRITE_UNPREPARED markers so I leave it for future work. Tested by running it on a WAL generated by WRITE_PREPARED: $ ./ldb dump_wal --walfile=/dev/shm/dbbench/000003.log | grep BEGIN_PREARE | head -1 1,2,70,0,BEGIN_PREARE $ ./ldb dump_wal --walfile=/dev/shm/dbbench/000003.log --write_committed=false | grep BEGIN_PREARE | head -1 1,2,70,0,BEGIN_PREARE PUT(0) : 0x30303031313330313938 PUT(0) : 0x30303032353732313935 END_PREPARE(0x74786E31313535383434323738303738363938313335312D30) Closes https://github.com/facebook/rocksdb/pull/3682 Differential Revision: D7522090 Pulled By: maysamyabandeh fbshipit-source-id: a0332207261c61e18b2f9dfbe9feecd9a1339aca 08 April 2018, 04:56:42 UTC
ca87aef Added support for SstFileManager to RocksJava Summary: Closes https://github.com/facebook/rocksdb/pull/3666 Differential Revision: D7457634 Pulled By: sagar0 fbshipit-source-id: 47741e2ee66e9255c580f4e38cfb86b284c27c2f 07 April 2018, 04:26:32 UTC
74767de Fix typo Summary: regrad -> regard Closes https://github.com/facebook/rocksdb/pull/3685 Differential Revision: D7540952 Pulled By: miasantreble fbshipit-source-id: e08c9389f7fccf401c962a4441b62cd5e73a33ad 06 April 2018, 22:42:50 UTC
faba3fb protect valid backup files when max_valid_backups_to_open is set Summary: When `max_valid_backups_to_open` is set, the `BackupEngine` doesn't know about the files referenced by existing backups. This PR prevents us from deleting valid files when that option is set, in cases where we are unable to accurately determine refcount. There are warnings logged when we may miss deleting unreferenced files, and a recommendation in the header for users to periodically unset this option and run a full `GarbageCollect`. Closes https://github.com/facebook/rocksdb/pull/3518 Differential Revision: D7008331 Pulled By: ajkr fbshipit-source-id: 87907f964dc9716e229d08636a895d2fc7b72305 06 April 2018, 04:13:21 UTC
6571770 fix shared libary compile on ppc Summary: shared-ppc-objects is missed in $(SHARED4) target Closes https://github.com/facebook/rocksdb/pull/3619 Differential Revision: D7475767 Pulled By: ajkr fbshipit-source-id: d957ac7290bab3cd542af504405fb5ff912bfbf1 06 April 2018, 02:58:20 UTC
446b32c Support for Column family specific paths. Summary: In this change, an option to set different paths for different column families is added. This option is set via cf_paths setting of ColumnFamilyOptions. This option will work in a similar fashion to db_paths setting. Cf_paths is a vector of Dbpath values which contains a pair of the absolute path and target size. Multiple levels in a Column family can go to different paths if cf_paths has more than one path. To maintain backward compatibility, if cf_paths is not specified for a column family, db_paths setting will be used. Note that, if db_paths setting is also not specified, RocksDB already has code to use db_name as the only path. Changes : 1) A new member "cf_paths" is added to ImmutableCfOptions. This is set, based on cf_paths setting of ColumnFamilyOptions and db_paths setting of ImmutableDbOptions. This member is used to identify the path information whenever files are accessed. 2) Validation checks are added for cf_paths setting based on existing checks for db_paths setting. 3) DestroyDB, PurgeObsoleteFiles etc. are edited to support multiple cf_paths. 4) Unit tests are added appropriately. Closes https://github.com/facebook/rocksdb/pull/3102 Differential Revision: D6951697 Pulled By: ajkr fbshipit-source-id: 60d2262862b0a8fd6605b09ccb0da32bb331787d 06 April 2018, 02:58:20 UTC
6718267 Stats for false positive rate of full filtesr Summary: Adds two stats to allow us measuring the false positive rate of full filters: - The total count of positives: rocksdb.bloom.filter.full.positive - The total count of true positives: rocksdb.bloom.filter.full.true.positive Not the term "full" in the stat name to indicate that they are meaningful in full filters. block-based filters are to be deprecated soon and supporting it is not worth the the additional cost of if-then-else branches. Closes #3680 Tested by: $ ./db_bench -benchmarks=fillrandom -db /dev/shm/rocksdb-tmpdb --num=1000000 -bloom_bits=10 $ ./db_bench -benchmarks="readwhilewriting" -db /dev/shm/rocksdb-tmpdb --statistics -bloom_bits=10 --duration=60 --num=2000000 --use_existing_db 2>&1 > /tmp/full.log $ grep filter.full /tmp/full.log rocksdb.bloom.filter.full.positive COUNT : 3628593 rocksdb.bloom.filter.full.true.positive COUNT : 3536026 which gives the false positive rate of 2.5% Closes https://github.com/facebook/rocksdb/pull/3681 Differential Revision: D7517570 Pulled By: maysamyabandeh fbshipit-source-id: 630ab1a473afdce404916d297035b6318de4c052 05 April 2018, 22:58:48 UTC
685912d Clock cache should check if deleter is nullptr before calling it Summary: Clock cache should check if deleter is nullptr before calling it. Closes https://github.com/facebook/rocksdb/pull/3677 Differential Revision: D7493602 Pulled By: yiwu-arbug fbshipit-source-id: 4f94b188d2baf2cbc7c0d5da30fea1215a683de4 05 April 2018, 18:57:53 UTC
147dfc7 Fix pre_release callback argument list. Summary: Primitive types constness does not affect the signature of the method and has no influence on whether the overriding method would actually have that const bool instead of just bool. In addition, it is rarely useful but does produce a compatibility warnings in VS 2015 compiler. Closes https://github.com/facebook/rocksdb/pull/3663 Differential Revision: D7475739 Pulled By: ajkr fbshipit-source-id: fb275378b5acc397399420ae6abb4b6bfe5bd32f 05 April 2018, 18:12:16 UTC
36a9f22 Blob DB: blob_dump to show uncompressed values Summary: Make blob_dump tool able to show uncompressed values if the blob file is compressed. Also show total compressed vs. raw size at the end if --show_summary is provided. Closes https://github.com/facebook/rocksdb/pull/3633 Differential Revision: D7348926 Pulled By: yiwu-arbug fbshipit-source-id: ca709cb4ed5cf6a550ff2987df8033df81516f8e 05 April 2018, 18:12:16 UTC
c827b2d fix build for rocksdb lite Summary: currently rocksdb lite build fails due to the following errors: > db/db_sst_test.cc:29:51: error: ‘FlushJobInfo’ does not name a type virtual void OnFlushCompleted(DB* /*db*/, const FlushJobInfo& info) override { ^ db/db_sst_test.cc:29:16: error: ‘virtual void rocksdb::FlushedFileCollector::OnFlushCompleted(rocksdb::DB*, const int&)’ marked ‘override’, but does not override virtual void OnFlushCompleted(DB* /*db*/, const FlushJobInfo& info) override { ^ db/db_sst_test.cc:24:7: error: ‘class rocksdb::FlushedFileCollector’ has virtual functions and accessible non-virtual destructor [-Werror=non-virtual-dtor] class FlushedFileCollector : public EventListener { ^ db/db_sst_test.cc: In member function ‘virtual void rocksdb::FlushedFileCollector::OnFlushCompleted(rocksdb::DB*, const int&)’: db/db_sst_test.cc:31:35: error: request for member ‘file_path’ in ‘info’, which is of non-class type ‘const int’ flushed_files_.push_back(info.file_path); ^ cc1plus: all warnings being treated as errors make: *** [db/db_sst_test.o] Error 1 Closes https://github.com/facebook/rocksdb/pull/3676 Differential Revision: D7493006 Pulled By: miasantreble fbshipit-source-id: 77dff0a5b23e27db51be9b9798e3744e6fdec64f 05 April 2018, 16:11:36 UTC
7d90679 Ttl-triggered and snapshot-release-triggered compactions should not be manual compactions Summary: Ttl-triggered and snapshot-release-triggered compactions should not be considered as manual compactions. This is a bug. Closes https://github.com/facebook/rocksdb/pull/3678 Differential Revision: D7498151 Pulled By: sagar0 fbshipit-source-id: a2d5bed05268a4dc93d54ea97a9ae44b366df15d 05 April 2018, 13:41:52 UTC
2a62ca1 Make Optimistic Tx database stackable Summary: This change models Optimistic Tx db after Pessimistic TX db. The motivation for this change is to make the ptr polymorphic so it can be held by the same raw or smart ptr. Currently, due to the inheritance of the Opt Tx db not being rooted in the manner of Pess Tx from a single DB root it is more difficult to write clean code and have clear ownership of the database in cases when options dictate instantiate of plan DB, Pess Tx DB or Opt tx db. Closes https://github.com/facebook/rocksdb/pull/3566 Differential Revision: D7184502 Pulled By: yiwu-arbug fbshipit-source-id: 31d06efafd79497bb0c230e971857dba3bd962c3 03 April 2018, 22:28:40 UTC
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