- 24 4月, 2020 1 次提交
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由 Cheng Chang 提交于
Summary: Add assertions to check direct IO's alignment requirements in MultiRead. Pull Request resolved: https://github.com/facebook/rocksdb/pull/6739 Test Plan: make check Reviewed By: siying Differential Revision: D21143825 Pulled By: cheng-chang fbshipit-source-id: 26f1623b062a1851080771128feac0669a61f5e9
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- 30 3月, 2020 1 次提交
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由 phantomape 提交于
Summary: This change updates PosixSequentialFile::Read to call clearerr() before fread()ing again after an EINTR is returned on a previous fread. The original fix is from https://github.com/cockroachdb/rocksdb/commit/bd8f1ebb91bbf0e668d24faef273042cc1fe52de. Fixing https://github.com/facebook/rocksdb/issues/6509Signed-off-by: Nphantomape <cxucheng@outlook.com> Pull Request resolved: https://github.com/facebook/rocksdb/pull/6609 Reviewed By: zhichao-cao Differential Revision: D20731482 Pulled By: riversand963 fbshipit-source-id: 7f1f3a1449077d5560f45c465a78d08633740ba0
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- 12 3月, 2020 1 次提交
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由 Cheng Chang 提交于
Summary: In Linux, when reopening DB with many SST files, profiling shows that 100% system cpu time spent for a couple of seconds for `GetLogicalBufferSize`. This slows down MyRocks' recovery time when site is down. This PR introduces two new APIs: 1. `Env::RegisterDbPaths` and `Env::UnregisterDbPaths` lets `DB` tell the env when it starts or stops using its database directories . The `PosixFileSystem` takes this opportunity to set up a cache from database directories to the corresponding logical block sizes. 2. `LogicalBlockSizeCache` is defined only for OS_LINUX to cache the logical block sizes. Other modifications: 1. rename `logical buffer size` to `logical block size` to be consistent with Linux terms. 2. declare `GetLogicalBlockSize` in `PosixHelper` to expose it to `PosixFileSystem`. 3. change the functions `IOError` and `IOStatus` in `env/io_posix.h` to have external linkage since they are used in other translation units too. Pull Request resolved: https://github.com/facebook/rocksdb/pull/6457 Test Plan: 1. A new unit test is added for `LogicalBlockSizeCache` in `env/io_posix_test.cc`. 2. A new integration test is added for `DB` operations related to the cache in `db/db_logical_block_size_cache_test.cc`. `make check` Differential Revision: D20131243 Pulled By: cheng-chang fbshipit-source-id: 3077c50f8065c0bffb544d8f49fb10bba9408d04
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- 22 2月, 2020 1 次提交
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由 sdong 提交于
Summary: The logic that handles io_uring partial results was wrong. Fix the logic by putting it into a queue and continue reading. Pull Request resolved: https://github.com/facebook/rocksdb/pull/6441 Test Plan: Make sure this patch fixes the application test case where the bug was discovered; in env_test, add a unit test that simulates partial results and make sure the results are still correct. Differential Revision: D20018616 fbshipit-source-id: 5398a7e34d74c26d52aa69dfd604e93e95d99c62
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- 21 2月, 2020 1 次提交
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由 sdong 提交于
Summary: When dynamically linking two binaries together, different builds of RocksDB from two sources might cause errors. To provide a tool for user to solve the problem, the RocksDB namespace is changed to a flag which can be overridden in build time. Pull Request resolved: https://github.com/facebook/rocksdb/pull/6433 Test Plan: Build release, all and jtest. Try to build with ROCKSDB_NAMESPACE with another flag. Differential Revision: D19977691 fbshipit-source-id: aa7f2d0972e1c31d75339ac48478f34f6cfcfb3e
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- 14 12月, 2019 1 次提交
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由 anand76 提交于
Summary: The current Env API encompasses both storage/file operations, as well as OS related operations. Most of the APIs return a Status, which does not have enough metadata about an error, such as whether its retry-able or not, scope (i.e fault domain) of the error etc., that may be required in order to properly handle a storage error. The file APIs also do not provide enough control over the IO SLA, such as timeout, prioritization, hinting about placement and redundancy etc. This PR separates out the file/storage APIs from Env into a new FileSystem class. The APIs are updated to return an IOStatus with metadata about the error, as well as to take an IOOptions structure as input in order to allow more control over the IO. The user can set both ```options.env``` and ```options.file_system``` to specify that RocksDB should use the former for OS related operations and the latter for storage operations. Internally, a ```CompositeEnvWrapper``` has been introduced that inherits from ```Env``` and redirects individual methods to either an ```Env``` implementation or the ```FileSystem``` as appropriate. When options are sanitized during ```DB::Open```, ```options.env``` is replaced with a newly allocated ```CompositeEnvWrapper``` instance if both env and file_system have been specified. This way, the rest of the RocksDB code can continue to function as before. This PR also ports PosixEnv to the new API by splitting it into two - PosixEnv and PosixFileSystem. PosixEnv is defined as a sub-class of CompositeEnvWrapper, and threading/time functions are overridden with Posix specific implementations in order to avoid an extra level of indirection. The ```CompositeEnvWrapper``` translates ```IOStatus``` return code to ```Status```, and sets the severity to ```kSoftError``` if the io_status is retryable. The error handling code in RocksDB can then recover the DB automatically. Pull Request resolved: https://github.com/facebook/rocksdb/pull/5761 Differential Revision: D18868376 Pulled By: anand1976 fbshipit-source-id: 39efe18a162ea746fabac6360ff529baba48486f
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- 10 12月, 2019 1 次提交
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由 sdong 提交于
Summary: ASAN reports: internal_repo_rocksdb/repo:db_test - MultiThreaded/MultiThreadedDBTest.MultiThreaded/43: fatal ==2692739==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x6130000500ca at pc 0x0000006be780 bp 0x7efef85ccd20 sp 0x7efef85cc4d0 [CONTEXT] === How to use this, how to get the raw stack trace, and more: fburl.com/ASAN === [CONTEXT] READ of size 331 at 0x6130000500ca thread T195 [CONTEXT] #0 db_test_bin+0x6be77f __interceptor_strlen.part.35 [CONTEXT] https://github.com/facebook/rocksdb/issues/1 internal_repo_rocksdb/repo/include/rocksdb/slice.h:55 rocksdb::Slice::Slice(char const*) [CONTEXT] https://github.com/facebook/rocksdb/issues/2 internal_repo_rocksdb/repo/env/io_posix.cc:522 rocksdb::PosixRandomAccessFile::MultiRead(rocksdb::ReadRequest*, unsigned long) I looked at env/io_posix.cc:522 but don't see a reason why the line needs to be there at all, because it is not used before overwritten. So it must be a line that is put there as a bug. Remove it. Pull Request resolved: https://github.com/facebook/rocksdb/pull/6135 Test Plan: Rerun the same test which passes after the fix. Run all the tests and make sure they all pass. Differential Revision: D18880251 fbshipit-source-id: 3b84ac6a05b67b529c4202e0ceb4c047460f44f2
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- 08 12月, 2019 1 次提交
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由 sdong 提交于
Summary: Right now, PosixRandomAccessFile::MultiRead() executes read requests in parallel. In this PR, it leverages I/O Uring library to run it in parallel, even when page cache is enabled. This function will fall back if the kernel version doesn't support it. Pull Request resolved: https://github.com/facebook/rocksdb/pull/5881 Test Plan: Run the unit test on a kernel version supporting it and make sure all tests pass, and run a unit test on kernel version supporting it and see it pass. Before merging, will also run stress test and see it passes. Differential Revision: D17742266 fbshipit-source-id: e05699c925ac04fdb42379456a4e23e4ebcb803a
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- 06 9月, 2019 1 次提交
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由 Richard He 提交于
Summary: Fix `error: ‘FALLOC_FL_KEEP_SIZE’` undeclared error in `io_posix.cc` during Vagrant build in CentOS as per issue https://github.com/facebook/rocksdb/issues/5599 Pull Request resolved: https://github.com/facebook/rocksdb/pull/5614 Differential Revision: D17217960 fbshipit-source-id: ef736c51b16833107fd9ccc7917ed1def2a8d02c
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- 17 8月, 2019 1 次提交
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由 sheng qiu 提交于
Summary: add "linux/falloc.h" in env/io_posix.cc to fix compile error: ‘FALLOC_FL_KEEP_SIZE’ undeclared Signed-off-by: Nsheng qiu <herbert1984106@gmail.com> Pull Request resolved: https://github.com/facebook/rocksdb/pull/5708 Differential Revision: D16832922 fbshipit-source-id: 30e787c4a1b5a9724a8acfd68962ff5ec5f27d3e
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- 31 7月, 2019 1 次提交
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由 Yi Wu 提交于
Summary: Fix -Wsign-compare warnings for gcc9. Pull Request resolved: https://github.com/facebook/rocksdb/pull/5651 Test Plan: Tested with ubuntu19.10+gcc9 Differential Revision: D16567428 fbshipit-source-id: 730b2704d42ba0c4e4ea946a3199bbb34be4c25c
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- 10 7月, 2019 1 次提交
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由 ggaurav28 提交于
Summary: Current PosixLogger performs IO operations using posix calls. Thus the current implementation will not work for non-posix env. Created a new logger class EnvLogger that uses env specific WritableFileWriter for IO operations. Pull Request resolved: https://github.com/facebook/rocksdb/pull/5491 Test Plan: make check Differential Revision: D15909002 Pulled By: ggaurav28 fbshipit-source-id: 13a8105176e8e42db0c59798d48cb6a0dbccc965
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- 14 6月, 2019 1 次提交
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由 Andrew Kryczka 提交于
Summary: `sync_file_range` returns `ENOSYS` on Windows Subsystem for Linux even when using a supposedly supported filesystem like ext4. To handle this case we can do a dynamic check that a no-op `sync_file_range` invocation, which is accomplished by passing zero for the `flags` argument, succeeds. Also I rearranged the function and comments to hopefully make it more easily understandable. Pull Request resolved: https://github.com/facebook/rocksdb/pull/5416 Differential Revision: D15807061 fbshipit-source-id: d31d94e1f228b7850ea500e6199f8b5daf8cfbd3
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- 01 6月, 2019 1 次提交
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由 Siying Dong 提交于
Summary: Many logging related source files are under util/. It will be more structured if they are together. Pull Request resolved: https://github.com/facebook/rocksdb/pull/5387 Differential Revision: D15579036 Pulled By: siying fbshipit-source-id: 3850134ed50b8c0bb40a0c8ae1f184fa4081303f
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- 31 5月, 2019 2 次提交
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由 Siying Dong 提交于
Summary: Move arena, allocator, and memory tools under util to a separate memory/ directory. Pull Request resolved: https://github.com/facebook/rocksdb/pull/5382 Differential Revision: D15564655 Pulled By: siying fbshipit-source-id: 9cd6b5d0d3d52b39606e19221fa154596e5852a5
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由 Siying Dong 提交于
Summary: There are too many types of files under util/. Some test related files don't belong to there or just are just loosely related. Mo ve them to a new directory test_util/, so that util/ is cleaner. Pull Request resolved: https://github.com/facebook/rocksdb/pull/5377 Differential Revision: D15551366 Pulled By: siying fbshipit-source-id: 0f5c8653832354ef8caa31749c0143815d719e2c
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- 16 5月, 2019 1 次提交
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由 Raphael Bost 提交于
Summary: This is a workaround for the issue described in #5169. It has been tested on a database with very large values, but not dedicated test has been added to the code base. Pull Request resolved: https://github.com/facebook/rocksdb/pull/5213 Differential Revision: D15243116 Pulled By: siying fbshipit-source-id: e0c226a6cd71a60924dcd7ce7af74abcb4054484
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- 23 4月, 2019 1 次提交
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由 Andrew Kryczka 提交于
Summary: The existing implementation does not guarantee bytes reach disk every `bytes_per_sync` when writing SST files, or every `wal_bytes_per_sync` when writing WALs. This can cause confusing behavior for users who enable this feature to avoid large syncs during flush and compaction, but then end up hitting them anyways. My understanding of the existing behavior is we used `sync_file_range` with `SYNC_FILE_RANGE_WRITE` to submit ranges for async writeback, such that we could continue processing the next range of bytes while that I/O is happening. I believe we can preserve that benefit while also limiting how far the processing can get ahead of the I/O, which prevents huge syncs from happening when the file finishes. Consider this `sync_file_range` usage: `sync_file_range(fd_, 0, static_cast<off_t>(offset + nbytes), SYNC_FILE_RANGE_WAIT_BEFORE | SYNC_FILE_RANGE_WRITE)`. Expanding the range to start at 0 and adding the `SYNC_FILE_RANGE_WAIT_BEFORE` flag causes any pending writeback (like from a previous call to `sync_file_range`) to finish before it proceeds to submit the latest `nbytes` for writeback. The latest `nbytes` are still written back asynchronously, unless processing exceeds I/O speed, in which case the following `sync_file_range` will need to wait on it. There is a second change in this PR to use `fdatasync` when `sync_file_range` is unavailable (determined statically) or has some known problem with the underlying filesystem (determined dynamically). The above two changes only apply when the user enables a new option, `strict_bytes_per_sync`. Pull Request resolved: https://github.com/facebook/rocksdb/pull/5183 Differential Revision: D14953553 Pulled By: siying fbshipit-source-id: 445c3862e019fb7b470f9c7f314fc231b62706e9
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- 26 3月, 2019 1 次提交
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由 Zhongyi Xie 提交于
Summary: User report has shown that sometimes `BlockBasedTable::SetupCacheKeyPrefix` would assert when trying to generate an id from the file. The actual cause seems to be hardware related but we might be better off without the incorrect assertion See T42178927 for more information Pull Request resolved: https://github.com/facebook/rocksdb/pull/5102 Differential Revision: D14604677 Pulled By: miasantreble fbshipit-source-id: fcb09207ebdc4fa66e941afbc0523d84797e7ad7
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- 22 3月, 2019 1 次提交
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由 Rashmi Sharma 提交于
Summary: [RocksDB] Make it easier for users to load options from option file and set shared block cache. Right now, it requires several dynamic casting for users to set the shared block cache to their option struct cast from the option file. If people don't do that, every CF of every DB will generate its own 8MB block cache. It's not a usable setting. So we are dragging every user who loads options from the file into such a mess. Instead, we should allow them to pass their cache object to LoadLatestOptions() and LoadOptionsFromFile(), so that those loaded option structs will have the shared block cache. Pull Request resolved: https://github.com/facebook/rocksdb/pull/5063 Differential Revision: D14518584 Pulled By: rashmishrm fbshipit-source-id: c91430ff9425a0e67d76fc67931d755f491ca5aa
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- 05 3月, 2019 1 次提交
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由 Andrew Kryczka 提交于
Summary: The compiler flag `-DROCKSDB_FALLOCATE_PRESENT` was only set when `fallocate`, `FALLOC_FL_KEEP_SIZE`, and `FALLOC_FL_PUNCH_HOLE` were all present. However, the last of the three is not really necessary for the primary `fallocate` use case; furthermore, it was introduced only in later Linux kernel versions (2.6.38+). This PR changes the flag `-DROCKSDB_FALLOCATE_PRESENT` to only require `fallocate` and `FALLOC_FL_KEEP_SIZE` to be present. There is a separate check for `FALLOC_FL_PUNCH_HOLE` only in the place where it is used. Pull Request resolved: https://github.com/facebook/rocksdb/pull/5023 Differential Revision: D14248487 Pulled By: siying fbshipit-source-id: a10ed0b902fa755988e957bd2dcec9081ec0502e
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- 01 2月, 2019 1 次提交
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由 Young Tack Jin 提交于
Summary: nvme device path doesn't have "block" as like "nvme/nvme0/nvme0n1" or "nvme/nvme0/nvme0n1/nvme0n1p1". the last directory such as "nvme0n1p1" should be removed if nvme drive is partitioned. Pull Request resolved: https://github.com/facebook/rocksdb/pull/4866 Differential Revision: D13627824 Pulled By: riversand963 fbshipit-source-id: 09ab968f349f3dbb890beea20193f1359b17d317
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- 22 6月, 2018 1 次提交
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由 Sagar Vemuri 提交于
Summary: Moved the direct-IO assertion to the top in `PosixSequentialFile::PositionedRead`, as it doesn't make sense to check for sector alignments before checking for direct IO. Closes https://github.com/facebook/rocksdb/pull/3891 Differential Revision: D8267972 Pulled By: sagar0 fbshipit-source-id: 0ecf77c0fb5c35747a4ddbc15e278918c0849af7
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- 26 5月, 2018 1 次提交
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由 奏之章 提交于
Summary: ```PosixMmapReadableFile::fd_``` is closed after created, but needs to remain open for the lifetime of `PosixMmapReadableFile` since it is used whenever `InvalidateCache` is called. Closes https://github.com/facebook/rocksdb/pull/2764 Differential Revision: D8152515 Pulled By: ajkr fbshipit-source-id: b738a6a55ba4e392f9b0f374ff396a1e61c64f65
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- 25 5月, 2018 1 次提交
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由 Dmitri Smirnov 提交于
Summary: Catch up with Posix features NewWritableRWFile must fail when file does not exists Implement Env::Truncate() Adjust Env options optimization functions Implement MemoryMappedBuffer on Windows. Closes https://github.com/facebook/rocksdb/pull/3857 Differential Revision: D8053610 Pulled By: ajkr fbshipit-source-id: ccd0d46c29648a9f6f496873bc1c9d6c5547487e
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- 01 5月, 2018 1 次提交
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由 Andrew Kryczka 提交于
Summary: - Original commit: a4fb1f8c - Revert commit (we reverted as a quick fix to get crash tests passing): 6afe22db 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
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- 28 4月, 2018 1 次提交
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由 Andrew Kryczka 提交于
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
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- 25 4月, 2018 1 次提交
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由 Andrew Kryczka 提交于
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
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- 16 4月, 2018 1 次提交
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由 Zhongyi Xie 提交于
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
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- 13 4月, 2018 1 次提交
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由 David Lai 提交于
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
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- 06 3月, 2018 1 次提交
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由 Andrew Kryczka 提交于
Summary: Submitting on behalf of another employee. Closes https://github.com/facebook/rocksdb/pull/3557 Differential Revision: D7146025 Pulled By: ajkr fbshipit-source-id: 495ca5db5beec3789e671e26f78170957704e77e
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- 23 2月, 2018 2 次提交
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由 Igor Sugak 提交于
Reviewed By: igorsugak fbshipit-source-id: 4a93675cc1931089ddd574cacdb15d228b1e5f37
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由 David Lai 提交于
Reviewed By: everiq, igorsugak Differential Revision: D7046710 fbshipit-source-id: 8e10b1f1e2aecebbfb229c742e214db887e5a461
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- 03 2月, 2018 1 次提交
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由 Tamir Duberstein 提交于
Summary: - Use `__unused__` everywhere - Suppress unused warnings in Release mode + This currently affects non-MSVC builds (e.g. mingw64). Closes https://github.com/facebook/rocksdb/pull/3448 Differential Revision: D6885496 Pulled By: miasantreble fbshipit-source-id: f2f6adacec940cc3851a9eee328fafbf61aad211
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- 16 11月, 2017 1 次提交
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由 Yi Wu 提交于
Summary: Add ROCKSDB_VALGRIND_RUN macro and suppress false-positive "unimplemented functionality" throw by valgrind for steam hints. Another approach would be add a valgrind suppress file. Valgrind is suppose to print the suppression when given "--gen-suppressions=all" param, which is suppose to be the content for the suppression file. But it doesn't print. Closes https://github.com/facebook/rocksdb/pull/3174 Differential Revision: D6338786 Pulled By: yiwu-arbug fbshipit-source-id: 3559efa5f3b92d40d09ad6ac82bc7b59f86c75aa
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- 11 11月, 2017 1 次提交
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由 Shaohua Li 提交于
Summary: Add a simple policy for NVMe write time life hint Closes https://github.com/facebook/rocksdb/pull/3095 Differential Revision: D6298030 Pulled By: shligit fbshipit-source-id: 9a72a42e32e92193af11599eb71f0cf77448e24d
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- 22 7月, 2017 2 次提交
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由 Sagar Vemuri 提交于
Summary: This reverts the previous commit 1d7048c5, which broke the build. Did a `git revert 1d7048c5`. Closes https://github.com/facebook/rocksdb/pull/2627 Differential Revision: D5476473 Pulled By: sagar0 fbshipit-source-id: 4756ff5c0dfc88c17eceb00e02c36176de728d06
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由 Victor Gao 提交于
Summary: This uses `clang-tidy` to comment out unused parameters (in functions, methods and lambdas) in fbcode. Cases that the tool failed to handle are fixed manually. Reviewed By: igorsugak Differential Revision: D5454343 fbshipit-source-id: 5dee339b4334e25e963891b519a5aa81fbf627b2
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- 16 7月, 2017 1 次提交
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由 Siying Dong 提交于
Summary: Closes https://github.com/facebook/rocksdb/pull/2589 Differential Revision: D5431502 Pulled By: siying fbshipit-source-id: 8ebf8c87883daa9daa54b2303d11ce01ab1f6f75
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- 13 7月, 2017 1 次提交
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由 Aaron Gao 提交于
Summary: We has to remove this line because previously it is only called when use_os_buffer = false. But now we have direct io to replace it. Closes https://github.com/facebook/rocksdb/pull/2573 Differential Revision: D5412824 Pulled By: yiwu-arbug fbshipit-source-id: 81f3f0cdf94566bfc09ef2ff123e40cddbe36b36
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