- 03 3月, 2018 1 次提交
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由 Yi Wu 提交于
Summary: Red diff to remove existing implementation of garbage collection. The current approach is reference counting kind of approach and require a lot of effort to get the size counter right on compaction and deletion. I'm going to go with a simple mark-sweep kind of approach and will send another PR for that. CompactionEventListener was added solely for blob db and it adds complexity and overhead to compaction iterator. Removing it as well. Closes https://github.com/facebook/rocksdb/pull/3551 Differential Revision: D7130190 Pulled By: yiwu-arbug fbshipit-source-id: c3a375ad2639a3f6ed179df6eda602372cc5b8df
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- 02 3月, 2018 2 次提交
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由 Maysam Yabandeh 提交于
Summary: The zeroed entries were not removed from prepared_section_completed_ map. This patch adds a unit test to show the problem and fixes that by refactoring the code. The new code is more efficient since i) it uses two separate mutex to avoid contention between commit and prepare threads, ii) it uses a sorted vector for maintaining uniq log entires with prepare which avoids a very large heap with many duplicate entries. Closes https://github.com/facebook/rocksdb/pull/3545 Differential Revision: D7106071 Pulled By: maysamyabandeh fbshipit-source-id: b3ae17cb6cd37ef10b6b35e0086c15c758768a48
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由 Yi Wu 提交于
Summary: Add "rocksdb.live-sst-files-size" DB property which only include files of latest version. Existing "rocksdb.total-sst-files-size" include files from all versions and thus include files that's obsolete but not yet deleted. I'm going to use this new property to cap blob db sst + blob files size. Closes https://github.com/facebook/rocksdb/pull/3548 Differential Revision: D7116939 Pulled By: yiwu-arbug fbshipit-source-id: c6a52e45ce0f24ef78708156e1a923c1dd6bc79a
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- 28 2月, 2018 1 次提交
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由 Andrew Kryczka 提交于
Summary: CompactRange has a call to Flush because we guarantee that, at the time it's called, all existing keys in the range will be pushed through the user's compaction filter. However, previously the flush was done blindly, so it'd happen even if the memtable does not contain keys in the range specified by the user. This caused unnecessarily many L0 files to be created, leading to write stalls in some cases. This PR checks the memtable's contents, and decides to flush only if it overlaps with `CompactRange`'s range. - Move the memtable overlap check logic from `ExternalSstFileIngestionJob` to `ColumnFamilyData::RangesOverlapWithMemtables` - Reuse the above logic in `CompactRange` and skip flushing if no overlap Closes https://github.com/facebook/rocksdb/pull/3520 Differential Revision: D7018897 Pulled By: ajkr fbshipit-source-id: a3c6b1cfae56687b49dd89ccac7c948e53545934
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- 23 2月, 2018 2 次提交
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由 Zhongyi Xie 提交于
Summary: Closes https://github.com/facebook/rocksdb/pull/3532 Differential Revision: D7062828 Pulled By: miasantreble fbshipit-source-id: d36967a1cfbcaeeeb33b9f0e09e15dea85b08b70
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由 Siying Dong 提交于
RocksDBOptionsParser::Parse()'s `ignore_unknown_options` argument only ingores options from higher version. Summary: RocksDB should always be able to parse an option file generated using the same or lower version. Unknown option should only happen if it is from a higher version. Change the behavior of RocksDBOptionsParser::Parse()'s behavior with ignore_unknown_options=true so that unknown option from a lower or the same version will never be skipped. Closes https://github.com/facebook/rocksdb/pull/3527 Differential Revision: D7048851 Pulled By: siying fbshipit-source-id: e261caea12f6515611a4a29f39acf2b619df2361
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- 21 2月, 2018 1 次提交
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由 Andrew Kryczka 提交于
Summary: - made `CreateCheckpoint` properly return `InvalidArgument` when called with an empty directory. Previously it triggered an assertion failure due to a bug in the logic. - made `ldb` set empty `checkpoint_dir` if that's what the user specifies, so that we can use it to properly test `CreateCheckpoint` in the future. Differential Revision: D6874562 fbshipit-source-id: dcc1bd41768261d9338987fa7711444289707ed7
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- 13 2月, 2018 1 次提交
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由 Andrew Kryczka 提交于
Summary: - Refactored logic for checking write stall condition to a helper function: `GetWriteStallConditionAndCause`. Now it is decoupled from the logic for updating WriteController / stats in `RecalculateWriteStallConditions`, so we can reuse it for predicting whether write stall will occur. - Updated `CompactRange` to first check whether the one additional immutable memtable / L0 file would cause stalling before it flushes. If so, it waits until that is no longer true. - Updated `bg_cv_` to be signaled on `SetOptions` calls. The stall conditions `CompactRange` cares about can change when (1) flush finishes, (2) compaction finishes, or (3) options dynamically change. The cv was already signaled for (1) and (2) but not yet for (3). Closes https://github.com/facebook/rocksdb/pull/3381 Differential Revision: D6754983 Pulled By: ajkr fbshipit-source-id: 5613e03f1524df7192dc6ae885d40fd8f091d972
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- 06 2月, 2018 1 次提交
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由 Anand Ananthabhotla 提交于
Summary: There are a couple of places where we swallow any error from WriteBuffer() - in SwitchMemtable() and DBImpl::CloseImpl(). Propagate the error up in those cases rather than ignoring it. Closes https://github.com/facebook/rocksdb/pull/3404 Differential Revision: D6879954 Pulled By: anand1976 fbshipit-source-id: 2ef88b554be5286b0a8bad7384ba17a105395bdb
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- 31 1月, 2018 1 次提交
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由 Huachao Huang 提交于
Summary: Using `DeleteFilesInRange` to delete files in a lot of ranges can be slow, because `VersionSet::LogAndApply` is expensive. This PR adds a new `DeleteFilesInRange` function to delete files in multiple ranges at once. Close https://github.com/facebook/rocksdb/issues/2951 Closes https://github.com/facebook/rocksdb/pull/3431 Differential Revision: D6849228 Pulled By: ajkr fbshipit-source-id: daeedcabd8def4b1d9ee95a58266dee77b5d68cb
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- 26 1月, 2018 1 次提交
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由 Sagar Vemuri 提交于
Summary: This change improves the performance of iterators doing long range scans (e.g. big/full table scans in MyRocks) by using readahead and prefetching additional data on each disk IO. This prefetching is automatically enabled on noticing more than 2 IOs for the same table file during iteration. The readahead size starts with 8KB and is exponentially increased on each additional sequential IO, up to a max of 256 KB. This helps in cutting down the number of IOs needed to complete the range scan. Constraints: - The prefetched data is stored by the OS in page cache. So this currently works only for non direct-reads use-cases i.e applications which use page cache. (Direct-I/O support will be enabled in a later PR). - This gets currently enabled only when ReadOptions.readahead_size = 0 (which is the default value). Thanks to siying for the original idea and implementation. **Benchmarks:** Data fill: ``` TEST_TMPDIR=/data/users/$USER/benchmarks/iter ./db_bench -benchmarks=fillrandom -num=1000000000 -compression_type="none" -level_compaction_dynamic_level_bytes ``` Do a long range scan: Seekrandom with large number of nexts ``` TEST_TMPDIR=/data/users/$USER/benchmarks/iter ./db_bench -benchmarks=seekrandom -duration=60 -num=1000000000 -use_existing_db -seek_nexts=10000 -statistics -histogram ``` Page cache was cleared before each experiment with the command: ``` sudo sh -c "echo 3 > /proc/sys/vm/drop_caches" ``` ``` Before: seekrandom : 34020.945 micros/op 29 ops/sec; 32.5 MB/s (1636 of 1999 found) With this change: seekrandom : 8726.912 micros/op 114 ops/sec; 126.8 MB/s (5702 of 6999 found) ``` ~3.9X performance improvement. Also verified with strace and gdb that the readahead size is increasing as expected. ``` strace -e readahead -f -T -t -p <db_bench process pid> ``` Closes https://github.com/facebook/rocksdb/pull/3282 Differential Revision: D6586477 Pulled By: sagar0 fbshipit-source-id: 8a118a0ed4594fbb7f5b1cafb242d7a4033cb58c
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- 24 1月, 2018 1 次提交
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由 Yi Wu 提交于
Summary: To prevent user who implement the Iterator interface fail to implement SeekForPrev by mistake. Closes https://github.com/facebook/rocksdb/pull/3402 Differential Revision: D6790681 Pulled By: yiwu-arbug fbshipit-source-id: bd75b8ced30208982e0a1414d34384d93496827a
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- 19 1月, 2018 1 次提交
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由 Yi Wu 提交于
Summary: Flush() call could be waiting indefinitely if min_write_buffer_number_to_merge is used. Consider the sequence: 1. User call Flush() with flush_options.wait = true 2. The manual flush started in the background 3. New memtable become immutable because of writes. The new memtable will not trigger flush if min_write_buffer_number_to_merge is not reached. 4. The manual flush finish. Because of the new memtable created at step 3 not being flush, previous logic of WaitForFlushMemTable() keep waiting, despite the memtables it intent to flush has been flushed. Here instead of checking if there are any more memtables to flush, WaitForFlushMemTable() also check the id of the earliest memtable. If the id is larger than that of latest memtable at the time flush was initiated, it means all the memtable at the time of flush start has all been flush. Closes https://github.com/facebook/rocksdb/pull/3378 Differential Revision: D6746789 Pulled By: yiwu-arbug fbshipit-source-id: 35e698f71c7f90b06337a93e6825f4ea3b619bfa
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- 18 1月, 2018 1 次提交
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由 Andrew Kryczka 提交于
Summary: When calling `DisableFileDeletions` followed by `GetSortedWalFiles`, we guarantee the files returned by the latter call won't be deleted until after file deletions are re-enabled. However, `GetSortedWalFiles` didn't omit files already planned for deletion via `PurgeObsoleteFiles`, so the guarantee could be broken. We fix it by making `GetSortedWalFiles` wait for the number of pending purges to hit zero if file deletions are disabled. This condition is eventually met since `PurgeObsoleteFiles` is guaranteed to be called for the existing pending purges, and new purges cannot be scheduled while file deletions are disabled. Once the condition is met, `GetSortedWalFiles` simply returns the content of DB and archive directories, which nobody can delete (except for deletion scheduler, for which I plan to fix this bug later) until deletions are re-enabled. Closes https://github.com/facebook/rocksdb/pull/3341 Differential Revision: D6681131 Pulled By: ajkr fbshipit-source-id: 90b1e2f2362ea9ef715623841c0826611a817634
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- 20 12月, 2017 1 次提交
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由 yingsu00 提交于
Summary: **# Summary** RocksDB uses SSE crc32 intrinsics to calculate the crc32 values but it does it in single way fashion (not pipelined on single CPU core). Intel's whitepaper () published an algorithm that uses 3-way pipelining for the crc32 intrinsics, then use pclmulqdq intrinsic to combine the values. Because pclmulqdq has overhead on its own, this algorithm will show perf gains on buffers larger than 216 bytes, which makes RocksDB a perfect user, since most of the buffers RocksDB call crc32c on is over 4KB. Initial db_bench show tremendous CPU gain. This change uses the 3-way SSE algorithm by default. The old SSE algorithm is now behind a compiler tag NO_THREEWAY_CRC32C. If user compiles the code with NO_THREEWAY_CRC32C=1 then the old SSE Crc32c algorithm would be used. If the server does not have SSE4.2 at the run time the slow way (Non SSE) will be used. **# Performance Test Results** We ran the FillRandom and ReadRandom benchmarks in db_bench. ReadRandom is the point of interest here since it calculates the CRC32 for the in-mem buffers. We did 3 runs for each algorithm. Before this change the CRC32 value computation takes about 11.5% of total CPU cost, and with the new 3-way algorithm it reduced to around 4.5%. The overall throughput also improved from 25.53MB/s to 27.63MB/s. 1) ReadRandom in db_bench overall metrics PER RUN Algorithm | run | micros/op | ops/sec |Throughput (MB/s) 3-way | 1 | 4.143 | 241387 | 26.7 3-way | 2 | 3.775 | 264872 | 29.3 3-way | 3 | 4.116 | 242929 | 26.9 FastCrc32c|1 | 4.037 | 247727 | 27.4 FastCrc32c|2 | 4.648 | 215166 | 23.8 FastCrc32c|3 | 4.352 | 229799 | 25.4 AVG Algorithm | Average of micros/op | Average of ops/sec | Average of Throughput (MB/s) 3-way | 4.01 | 249,729 | 27.63 FastCrc32c | 4.35 | 230,897 | 25.53 2) Crc32c computation CPU cost (inclusive samples percentage) PER RUN Implementation | run | TotalSamples | Crc32c percentage 3-way | 1 | 4,572,250,000 | 4.37% 3-way | 2 | 3,779,250,000 | 4.62% 3-way | 3 | 4,129,500,000 | 4.48% FastCrc32c | 1 | 4,663,500,000 | 11.24% FastCrc32c | 2 | 4,047,500,000 | 12.34% FastCrc32c | 3 | 4,366,750,000 | 11.68% **# Test Plan** make -j64 corruption_test && ./corruption_test By default it uses 3-way SSE algorithm NO_THREEWAY_CRC32C=1 make -j64 corruption_test && ./corruption_test make clean && DEBUG_LEVEL=0 make -j64 db_bench make clean && DEBUG_LEVEL=0 NO_THREEWAY_CRC32C=1 make -j64 db_bench Closes https://github.com/facebook/rocksdb/pull/3173 Differential Revision: D6330882 Pulled By: yingsu00 fbshipit-source-id: 8ec3d89719533b63b536a736663ca6f0dd4482e9
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- 12 12月, 2017 1 次提交
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由 Siying Dong 提交于
Summary: Closes https://github.com/facebook/rocksdb/pull/3252 Differential Revision: D6539373 Pulled By: siying fbshipit-source-id: ce7c3d3fe625852179055295da9cf7bc80755025
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- 08 12月, 2017 1 次提交
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由 Andrew Kryczka 提交于
Summary: Closes https://github.com/facebook/rocksdb/pull/3242 Differential Revision: D6514255 Pulled By: ajkr fbshipit-source-id: c39fa8e745866b052649d02bf339e794d77e96a3
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- 07 12月, 2017 2 次提交
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由 Andrew Kryczka 提交于
Summary: I browsed through the history since 5.9 was released and found some changes worth mentioning in HISTORY.md. Closes https://github.com/facebook/rocksdb/pull/3237 Differential Revision: D6506472 Pulled By: ajkr fbshipit-source-id: 627ce9f94ca33df9f0f231a9c5ced3624b05506c
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由 Yi Wu 提交于
Summary: Since #1665, on merge error, iterator will be set to corrupted status, but it doesn't invalidate the iterator. Fixing it. Closes https://github.com/facebook/rocksdb/pull/3226 Differential Revision: D6499094 Pulled By: yiwu-arbug fbshipit-source-id: 80222930f949e31f90a6feaa37ddc3529b510d2c
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- 29 11月, 2017 1 次提交
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由 Yi Wu 提交于
Summary: This is a simpler version of #3097 by removing all unrelated changes. Fixing the bug where concurrent writes may get Status::OK while it actually gets IOError on WAL write. This happens when multiple writes form a write batch group, and the leader get an IOError while writing to WAL. The leader failed to pass the error to followers in the group, and the followers end up returning Status::OK() while actually writing nothing. The bug only affect writes in a batch group. Future writes after the batch group will correctly return immediately with the IOError. Closes https://github.com/facebook/rocksdb/pull/3201 Differential Revision: D6421644 Pulled By: yiwu-arbug fbshipit-source-id: 1c2a455c5b73f6842423785eb8a9dbfbb191dc0e
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- 18 11月, 2017 1 次提交
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由 Gustav Davidsson 提交于
Summary: Allow users to configure the trash-to-DB size ratio limit, so that ratelimits for deletes can be enforced even when larger portions of the database are being deleted. Closes https://github.com/facebook/rocksdb/pull/3158 Differential Revision: D6304897 Pulled By: gdavidsson fbshipit-source-id: a28dd13059ebab7d4171b953ed91ce383a84d6b3
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- 17 11月, 2017 1 次提交
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由 Zhongyi Xie 提交于
Summary: Closes https://github.com/facebook/rocksdb/pull/3004 Differential Revision: D6056141 Pulled By: miasantreble fbshipit-source-id: 56df1630f464fd56b07d25d38161f699e0528b7f
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- 02 11月, 2017 2 次提交
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由 Andrew Kryczka 提交于
Summary: updated HISTORY.md and version.h for the release. Closes https://github.com/facebook/rocksdb/pull/3110 Differential Revision: D6218645 Pulled By: ajkr fbshipit-source-id: 99ab8473e9088b02d7596e92351cce7a60a99e93
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由 Mikhail Antonov 提交于
Summary: The motivation for this PR is to add to RocksDB support for differential (incremental) snapshots, as snapshot of the DB changes between two points in time (one can think of it as diff between to sequence numbers, or the diff D which can be thought of as an SST file or just set of KVs that can be applied to sequence number S1 to get the database to the state at sequence number S2). This feature would be useful for various distributed storages layers built on top of RocksDB, as it should help reduce resources (time and network bandwidth) needed to recover and rebuilt DB instances as replicas in the context of distributed storages. From the API standpoint that would like client app requesting iterator between (start seqnum) and current DB state, and reading the "diff". This is a very draft PR for initial review in the discussion on the approach, i'm going to rework some parts and keep updating the PR. For now, what's done here according to initial discussions: Preserving deletes: - We want to be able to optionally preserve recent deletes for some defined period of time, so that if a delete came in recently and might need to be included in the next incremental snapshot it would't get dropped by a compaction. This is done by adding new param to Options (preserve deletes flag) and new variable to DB Impl where we keep track of the sequence number after which we don't want to drop tombstones, even if they are otherwise eligible for deletion. - I also added a new API call for clients to be able to advance this cutoff seqnum after which we drop deletes; i assume it's more flexible to let clients control this, since otherwise we'd need to keep some kind of timestamp < -- > seqnum mapping inside the DB, which sounds messy and painful to support. Clients could make use of it by periodically calling GetLatestSequenceNumber(), noting the timestamp, doing some calculation and figuring out by how much we need to advance the cutoff seqnum. - Compaction codepath in compaction_iterator.cc has been modified to avoid dropping tombstones with seqnum > cutoff seqnum. Iterator changes: - couple params added to ReadOptions, to optionally allow client to request internal keys instead of user keys (so that client can get the latest value of a key, be it delete marker or a put), as well as min timestamp and min seqnum. TableCache changes: - I modified table_cache code to be able to quickly exclude SST files from iterators heep if creation_time on the file is less then iter_start_ts as passed in ReadOptions. That would help a lot in some DB settings (like reading very recent data only or using FIFO compactions), but not so much for universal compaction with more or less long iterator time span. What's left: - Still looking at how to best plug that inside DBIter codepath. So far it seems that FindNextUserKeyInternal only parses values as UserKeys, and iter->key() call generally returns user key. Can we add new API to DBIter as internal_key(), and modify this internal method to optionally set saved_key_ to point to the full internal key? I don't need to store actual seqnum there, but I do need to store type. Closes https://github.com/facebook/rocksdb/pull/2999 Differential Revision: D6175602 Pulled By: mikhail-antonov fbshipit-source-id: c779a6696ee2d574d86c69cec866a3ae095aa900
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- 01 11月, 2017 1 次提交
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由 Shaohua Li 提交于
Summary: The DBOptions::writable_file_max_buffer_size can be changed dynamically. Closes https://github.com/facebook/rocksdb/pull/3053 Differential Revision: D6152720 Pulled By: shligit fbshipit-source-id: aa0c0cfcfae6a54eb17faadb148d904797c68681
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- 29 10月, 2017 1 次提交
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由 Yi Wu 提交于
Summary: write_options.sync = true and write_options.disableWAL is incompatible. When WAL is disabled, we are not able to persist the write immediately. Return an error in this case to avoid misuse of the options. Closes https://github.com/facebook/rocksdb/pull/3086 Differential Revision: D6176822 Pulled By: yiwu-arbug fbshipit-source-id: 1eb10028c14fe7d7c13c8bc12c0ef659f75aa071
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- 28 10月, 2017 1 次提交
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由 Islam AbdelRahman 提交于
Summary: SstFileManager move files that need to be deleted into a trash directory. Deprecate this behaviour and instead add ".trash" extension to files that need to be deleted Closes https://github.com/facebook/rocksdb/pull/2970 Differential Revision: D5976805 Pulled By: IslamAbdelRahman fbshipit-source-id: 27374ece4315610b2792c30ffcd50232d4c9a343
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- 27 10月, 2017 1 次提交
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由 Andrew Kryczka 提交于
Summary: - for `SeekToFirst()`, just convert it to a regular `Seek()` if lower bound is specified - for operations that iterate backwards over user keys (`SeekForPrev`, `SeekToLast`, `Prev`), change `PrevInternal` to check whether user key went below lower bound every time the user key changes -- same approach we use to ensure we stay within a prefix when `prefix_same_as_start=true`. Closes https://github.com/facebook/rocksdb/pull/3074 Differential Revision: D6158654 Pulled By: ajkr fbshipit-source-id: cb0e3a922e2650d2cd4d1c6e1c0f1e8b729ff518
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- 26 10月, 2017 1 次提交
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由 Andrew Kryczka 提交于
Summary: When snapshots are held for a long time, files may reach the bottom level containing overwritten/deleted keys. We previously had no mechanism to trigger compaction on such files. This particularly impacted DBs that write to different parts of the keyspace over time, as such files would never be naturally compacted due to second-last level files moving down. This PR introduces a mechanism for bottommost files to be recompacted upon releasing all snapshots that prevent them from dropping their deleted/overwritten keys. - Changed `CompactionPicker` to compact files in `BottommostFilesMarkedForCompaction()`. These are the last choice when picking. Each file will be compacted alone and output to the same level in which it originated. The goal of this type of compaction is to rewrite the data excluding deleted/overwritten keys. - Changed `ReleaseSnapshot()` to recompute the bottom files marked for compaction when the oldest existing snapshot changes, and schedule a compaction if needed. We cache the value that oldest existing snapshot needs to exceed in order for another file to be marked in `bottommost_files_mark_threshold_`, which allows us to avoid recomputing marked files for most snapshot releases. - Changed `VersionStorageInfo` to track the list of bottommost files, which is recomputed every time the version changes by `UpdateBottommostFiles()`. The list of marked bottommost files is first computed in `ComputeBottommostFilesMarkedForCompaction()` when the version changes, but may also be recomputed when `ReleaseSnapshot()` is called. - Extracted core logic of `Compaction::IsBottommostLevel()` into `VersionStorageInfo::RangeMightExistAfterSortedRun()` since logic to check whether a file is bottommost is now necessary outside of compaction. Closes https://github.com/facebook/rocksdb/pull/3009 Differential Revision: D6062044 Pulled By: ajkr fbshipit-source-id: 123d201cf140715a7d5928e8b3cb4f9cd9f7ad21
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- 24 10月, 2017 1 次提交
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由 Yi Wu 提交于
Summary: With FIFO compaction we would like to get the oldest data time for monitoring. The problem is we don't have timestamp for each key in the DB. As an approximation, we expose the earliest of sst file "creation_time" property. My plan is to override the property with a more accurate value with blob db, where we actually have timestamp. Closes https://github.com/facebook/rocksdb/pull/2842 Differential Revision: D5770600 Pulled By: yiwu-arbug fbshipit-source-id: 03833c8f10bbfbee62f8ea5c0d03c0cafb5d853a
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- 21 10月, 2017 1 次提交
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由 Andrew Kryczka 提交于
Summary: We should mention these: - `EventListener::OnStallConditionsChanged()` in 01542400 - `DeleteRange()` fix in 966b32b5 Closes https://github.com/facebook/rocksdb/pull/3054 Differential Revision: D6113989 Pulled By: ajkr fbshipit-source-id: d5e058e1ab07570df22936e8d5939fb30fb4d381
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- 20 10月, 2017 1 次提交
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由 Sagar Vemuri 提交于
Summary: ColumnFamilyOptions::compaction_options_fifo and all its sub-fields can be set dynamically now. Some of the ways in which the fifo compaction options can be set are: - `SetOptions({{"compaction_options_fifo", "{max_table_files_size=1024}"}})` - `SetOptions({{"compaction_options_fifo", "{ttl=600;}"}})` - `SetOptions({{"compaction_options_fifo", "{max_table_files_size=1024;ttl=600;}"}})` - `SetOptions({{"compaction_options_fifo", "{max_table_files_size=51;ttl=49;allow_compaction=true;}"}})` Most of the code has been made generic enough so that it could be reused later to make universal options (and other such nested defined-types) dynamic with very few lines of parsing/serializing code changes. Introduced a few new functions like `ParseStruct`, `SerializeStruct` and `GetStringFromStruct`. The duplicate code in `GetStringFromDBOptions` and `GetStringFromColumnFamilyOptions` has been moved into `GetStringFromStruct`. So they become just simple wrappers now. Closes https://github.com/facebook/rocksdb/pull/3006 Differential Revision: D6058619 Pulled By: sagar0 fbshipit-source-id: 1e8f78b3374ca5249bb4f3be8a6d3bb4cbc52f92
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- 05 10月, 2017 1 次提交
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由 Andrew Kryczka 提交于
Summary: Dynamic adjustment of rate limit according to demand for background I/O. It increases by a factor when limiter is drained too frequently, and decreases by the same factor when limiter is not drained frequently enough. The parameters for this behavior are fixed in `GenericRateLimiter::Tune`. Other changes: - make rate limiter's `Env*` configurable for testing - track num drain intervals in RateLimiter so we don't have to rely on stats, which may be shared across different DB instances from the ones that share the RateLimiter. Closes https://github.com/facebook/rocksdb/pull/2899 Differential Revision: D5858704 Pulled By: ajkr fbshipit-source-id: cc2bac30f85e7f6fd63655d0a6732ef9ed7403b1
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- 28 9月, 2017 1 次提交
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由 Quinn Jarrell 提交于
Summary: SUMMARY Moves the bytes_per_sync and wal_bytes_per_sync options from immutableoptions to mutable options. Also if wal_bytes_per_sync is changed, the wal file and memtables are flushed. TEST PLAN ran make check all passed Two new tests SetBytesPerSync, SetWalBytesPerSync check that after issuing setoptions with a new value for the var, the db options have the new value. Closes https://github.com/facebook/rocksdb/pull/2893 Reviewed By: yiwu-arbug Differential Revision: D5845814 Pulled By: TheRushingWookie fbshipit-source-id: 93b52d779ce623691b546679dcd984a06d2ad1bd
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- 23 9月, 2017 1 次提交
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由 Zhongyi Xie 提交于
Summary: Context/problem: - CFs may be flushed at different times - A WAL can only be deleted after all CFs have flushed beyond end of that WAL. - Point-in-time recovery might stop upon reaching the first corruption. - Some CFs may have already flushed beyond that point, while others haven't. We should fail the Open() instead of proceeding with inconsistent CFs. Closes https://github.com/facebook/rocksdb/pull/2900 Differential Revision: D5863281 Pulled By: miasantreble fbshipit-source-id: 180dbaf83d96c804cff49b3c406312a4ae61313e
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- 13 9月, 2017 1 次提交
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由 Andrew Kryczka 提交于
Summary: There are internal users who open BackupEngine for writing new backups only, and they don't care whether old backups can be read or not. The condition `BackupableDBOptions::max_valid_backups_to_open == 0` should be supported (previously in df74b775 I made the mistake of choosing 0 as a special value to disable the limit). Closes https://github.com/facebook/rocksdb/pull/2819 Differential Revision: D5751599 Pulled By: ajkr fbshipit-source-id: e73ac19eb5d756d6b68601eae8e43407ee4f2752
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- 31 8月, 2017 1 次提交
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由 Maysam Yabandeh 提交于
Summary: Closes https://github.com/facebook/rocksdb/pull/2738 Differential Revision: D5736261 Pulled By: maysamyabandeh fbshipit-source-id: 49d27e9ccd786c4056a3d586a060fe460ea883ac
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- 30 8月, 2017 1 次提交
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由 Andrew Kryczka 提交于
Summary: fixed in #2799 Closes https://github.com/facebook/rocksdb/pull/2805 Differential Revision: D5734324 Pulled By: ajkr fbshipit-source-id: a285d4e84bf1018dc2257fd6c3e7c075a7243263
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- 24 8月, 2017 2 次提交
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由 Andrew Kryczka 提交于
Summary: store a zero as the checksum when disabled since it's easier to keep block trailer a fixed length. Closes https://github.com/facebook/rocksdb/pull/2781 Differential Revision: D5694702 Pulled By: ajkr fbshipit-source-id: 69cea9da415778ba2b600dfd9d0dfc8cb5188ecd
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由 Andrew Kryczka 提交于
Summary: Allow `Slice` holding nullptr as a sentinel value but not in comparisons. This new restriction eliminates the need for the manual checks in 39ef9005, while still conforming to glibc's `memcmp` API. Thanks siying for the idea. Users may need to migrate, so mentioned it in HISTORY.md. Closes https://github.com/facebook/rocksdb/pull/2777 Differential Revision: D5686016 Pulled By: ajkr fbshipit-source-id: 03a2ca3fd9a0ebade9d0d5686c81d59a9534f563
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