1. 21 10月, 2017 6 次提交
  2. 20 10月, 2017 2 次提交
    • S
      Make FIFO compaction options dynamically configurable · f0804db7
      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
      f0804db7
    • D
      Enable MSVC W4 with a few exceptions. Fix warnings and bugs · ebab2e2d
      Dmitri Smirnov 提交于
      Summary: Closes https://github.com/facebook/rocksdb/pull/3018
      
      Differential Revision: D6079011
      
      Pulled By: yiwu-arbug
      
      fbshipit-source-id: 988a721e7e7617967859dba71d660fc69f4dff57
      ebab2e2d
  3. 19 10月, 2017 3 次提交
  4. 18 10月, 2017 7 次提交
    • N
      expose a hook to skip tables during iteration · 7891af8b
      Nikhil Benesch 提交于
      Summary:
      As discussed on the mailing list (["Skipping entire SSTs while iterating"](https://groups.google.com/forum/#!topic/rocksdb/ujHCJVLrHlU)), this patch adds a `table_filter` to `ReadOptions` that allows specifying a callback to be executed during iteration before each table in the database is scanned. The callback is passed the table's properties; the table is scanned iff the callback returns true.
      
      This can be used in conjunction with a `TablePropertiesCollector` to dramatically speed up scans by skipping tables that are known to contain irrelevant data for the scan at hand.
      
      We're using this [downstream in CockroachDB](https://github.com/cockroachdb/cockroach/blob/master/pkg/storage/engine/db.cc#L2009-L2022) already. With this feature, under ideal conditions, we can reduce the time of an incremental backup in  from hours to seconds.
      
      FYI, the first commit in this PR fixes a segfault that I unfortunately have not figured out how to reproduce outside of CockroachDB. I'm hoping you accept it on the grounds that it is not correct to return 8-byte aligned memory from a call to `malloc` on some 64-bit platforms; one correct approach is to infer the necessary alignment from `std::max_align_t`, as done here. As noted in the first commit message, the bug is tickled by having a`std::function` in `struct ReadOptions`. That is, the following patch alone is enough to cause RocksDB to segfault when run from CockroachDB on Darwin.
      
      ```diff
       --- a/include/rocksdb/options.h
      +++ b/include/rocksdb/options.h
      @@ -1546,6 +1546,13 @@ struct ReadOptions {
         // Default: false
         bool ignore_range_deletions;
      
      +  // A callback to determine whether relevant keys for this scan exist in a
      +  // given table based on the table's properties. The callback is passed the
      +  // properties of each table during iteration. If the callback returns false,
      +  // the table will not be scanned.
      +  // Default: empty (every table will be scanned)
      +  std::function<bool(const TableProperties&)> table_filter;
      +
         ReadOptions();
         ReadOptions(bool cksum, bool cache);
       };
      ```
      
      /cc danhhz
      Closes https://github.com/facebook/rocksdb/pull/2265
      
      Differential Revision: D5054262
      
      Pulled By: yiwu-arbug
      
      fbshipit-source-id: dd6b28f2bba6cb8466250d8c5c542d3c92785476
      7891af8b
    • Y
      Blob DB: Store blob index as kTypeBlobIndex in base db · eaaef911
      Yi Wu 提交于
      Summary:
      Blob db insert blob index to base db as kTypeBlobIndex type, to tell apart values written by plain rocksdb or blob db. This is to make it possible to migrate from existing rocksdb to blob db.
      
      Also with the patch blob db garbage collection get away from OptimisticTransaction. Instead it use a custom write callback to achieve similar behavior as OptimisticTransaction. This is because we need to pass the is_blob_index flag to DBImpl::Get but OptimisticTransaction don't support it.
      Closes https://github.com/facebook/rocksdb/pull/3000
      
      Differential Revision: D6050044
      
      Pulled By: yiwu-arbug
      
      fbshipit-source-id: 61dc72ab9977625e75f78cd968e7d8a3976e3632
      eaaef911
    • Y
      Blob DB: not writing sequence number as blob record footer · 0552029b
      Yi Wu 提交于
      Summary:
      Previously each time we write a blob we write blog_record_header + key + value + blob_record_footer to blob log. The footer only contains a sequence and a crc for the sequence number. The sequence number was used in garbage collection to verify the value is recent. After #2703 we moved to use optimistic transaction and no longer use sequence number from the footer. Remove the footer altogether.
      
      There's another usage of sequence number and we are keeping it: Each blob log file keep track of sequence number range of keys in it, and use it to check if it is reference by a snapshot, before being deleted.
      Closes https://github.com/facebook/rocksdb/pull/3005
      
      Differential Revision: D6057585
      
      Pulled By: yiwu-arbug
      
      fbshipit-source-id: d6da53c457a316e9723f359a1b47facfc3ffe090
      0552029b
    • Z
      fix delete range bug · 966b32b5
      zhangjinpeng1987 提交于
      Summary:
      Fix this [issue](https://github.com/facebook/rocksdb/issues/2989).
      ajkr PTAL
      
      Close #2989
      Closes https://github.com/facebook/rocksdb/pull/3017
      
      Differential Revision: D6078541
      
      Pulled By: yiwu-arbug
      
      fbshipit-source-id: ef3db87b37b9156f83ca468aa39dea1f6dbde49d
      966b32b5
    • N
      arena: derive alignment unit from std::max_align_t · c0208dff
      Nikhil Benesch 提交于
      Summary:
      As raised in #2265, the arena allocator will return memory that is improperly aligned to store a `std::function` on macOS. Oddly, I'm unable to tickle this bug without adding a `std::function` field to `struct ReadOptions`—but my proposal in #2265 does exactly that.
      
      In any case, here's a simple reproduction. Apply this bogus patch to get a `std::function` into `struct ReadOptions`
      
      ```
       --- a/include/rocksdb/options.h
      +++ b/include/rocksdb/options.h
      @@ -1035,6 +1035,8 @@ struct ReadOptions {
         // Default: 0
         uint64_t max_skippable_internal_keys;
      
      +  std::function<void()> foo;
      +
         ReadOptions();
         ReadOptions(bool cksum, bool cache);
       };
      ```
      
      then compile `db_properties_test` *with ubsan* and run `ReadLatencyHistogramByLevel`:
      
      ```
      $ make COMPILE_WITH_UBSAN=1 db_properties_test
      $ ./db_properties_test --gtest_filter=DBPropertiesTest.ReadLatencyHistogramByLevel
      ```
      
      ubsan will complain about several misaligned accesses:
      
      ```
      Note: Google Test filter = DBPropertiesTest.ReadLatencyHistogramByLevel
      [==========] Running 1 test from 1 test case.
      [----------] Global test environment set-up.
      [----------] 1 test from DBPropertiesTest
      [ RUN      ] DBPropertiesTest.ReadLatencyHistogramByLevel
      util/coding.h:372:12: runtime error: load of misaligned address 0x00010d85516c for type 'const unsigned long', which requires 8 byte alignment
      0x00010d85516c: note: pointer points here
        01 00 34 57 00 00 00 00  02 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  78 24 82 0a 01 00 00 00
                    ^
      util/coding.h:362:3: runtime error: store to misaligned address 0x7fff5733fac4 for type 'unsigned long', which requires 8 byte alignment
      0x7fff5733fac4: note: pointer points here
        01 00 00 00 00 00 00 00  02 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  80 1d 96 0d 01 00 00 00
                    ^
      util/coding.h:372:12: runtime error: load of misaligned address 0x00010d85516c for type 'const unsigned long', which requires 8 byte alignment
      0x00010d85516c: note: pointer points here
        01 00 34 57 00 00 00 00  02 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  78 24 82 0a 01 00 00 00
                    ^
      version_set.cc:854: runtime error: constructor call on misaligned address 0x00010dbfa5c8 for type 'rocksdb::(anonymous namespace)::LevelFileIteratorState', which requires 16 byte alignment
      0x00010dbfa5c8: note: pointer points here
       00 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00
                    ^
      version_set.cc:512: runtime error: constructor call on misaligned address 0x00010dbfa5c8 for type 'rocksdb::(anonymous namespace)::LevelFileIteratorState', which requires 16 byte alignment
      0x00010dbfa5c8: note: pointer points here
       00 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00
                    ^
      version_set.cc:505: runtime error: constructor call on misaligned address 0x00010dbfa5e8 for type 'rocksdb::ReadOptions', which requires 16 byte alignment
      0x00010dbfa5e8: note: pointer points here
       00 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00
                    ^
      options.h:931: runtime error: constructor call on misaligned address 0x00010dbfa5e8 for type 'rocksdb::ReadOptions', which requires 16 byte alignment
      0x00010dbfa5e8: note: pointer points here
       00 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00
                    ^
      options.h:931: runtime error: constructor call on misaligned address 0x00010dbfa628 for type 'std::__1::function<void ()>', which requires 16 byte alignment
      0x00010dbfa628: note: pointer points here
       00 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00
                    ^
      functional:1583: runtime error: constructor call on misaligned address 0x00010dbfa628 for type 'std::__1::function<void ()>', which requires 16 byte alignment
      0x00010dbfa628: note: pointer points here
       00 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00
                    ^
      /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/functional:1585:9: runtime error: member access within misaligned address 0x00010dbfa628 for type 'std::__1::function<void ()>', which requires 16 byte alignment
      0x00010dbfa628: note: pointer points here
       00 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00
                    ^
      /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/functional:1585:9: runtime error: store to misaligned address 0x00010dbfa648 for type '__base *' (aka '__base<void ()> *'), which requires 16 byte alignment
      0x00010dbfa648: note: pointer points here
       00 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00
                    ^
      db/version_set.cc:864:29: runtime error: upcast of misaligned address 0x00010dbfa5c8 for type 'rocksdb::(anonymous namespace)::LevelFileIteratorState', which requires 16 byte alignment
      0x00010dbfa5c8: note: pointer points here
       00 00 00 00  a0 db 70 0a 01 00 00 00  00 00 00 00 00 00 00 00  90 14 98 0d 01 00 00 00  00 00 00 00
                    ^
      db/version_set.cc:521:12: runtime error: member access within misaligned address 0x00010dbfa5c8 for type 'rocksdb::(anonymous namespace)::LevelFileIteratorState', which requires 16 byte alignment
      0x00010dbfa5c8: note: pointer points here
       00 00 00 00  a0 db 70 0a 01 00 00 00  00 00 00 00 00 00 00 00  90 14 98 0d 01 00 00 00  00 00 00 00
                    ^
      db/version_set.cc:521:12: runtime error: load of misaligned address 0x00010dbfa5d8 for type 'rocksdb::TableCache *', which requires 16 byte alignment
      0x00010dbfa5d8: note: pointer points here
       00 00 00 00  90 14 98 0d 01 00 00 00  00 00 00 00 00 00 00 00  01 01 ff ff ff ff ff ff  00 00 00 00
                    ^
      db/version_set.cc:522:9: runtime error: member access within misaligned address 0x00010dbfa5c8 for type 'rocksdb::(anonymous namespace)::LevelFileIteratorState', which requires 16 byte alignment
      0x00010dbfa5c8: note: pointer points here
       00 00 00 00  a0 db 70 0a 01 00 00 00  00 00 00 00 00 00 00 00  90 14 98 0d 01 00 00 00  00 00 00 00
                    ^
      db/version_set.cc:522:9: runtime error: reference binding to misaligned address 0x00010dbfa5e8 for type 'const rocksdb::ReadOptions', which requires 16 byte alignment
      0x00010dbfa5e8: note: pointer points here
       00 00 00 00  01 01 ff ff ff ff ff ff  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00
                    ^
      db/version_set.cc:522:24: runtime error: member access within misaligned address 0x00010dbfa5c8 for type 'rocksdb::(anonymous namespace)::LevelFileIteratorState', which requires 16 byte alignment
      0x00010dbfa5c8: note: pointer points here
       00 00 00 00  a0 db 70 0a 01 00 00 00  00 00 00 00 00 00 00 00  90 14 98 0d 01 00 00 00  00 00 00 00
                    ^
      db/version_set.cc:522:38: runtime error: member access within misaligned address 0x00010dbfa5c8 for type 'rocksdb::(anonymous namespace)::LevelFileIteratorState', which requires 16 byte alignment
      0x00010dbfa5c8: note: pointer points here
       00 00 00 00  a0 db 70 0a 01 00 00 00  00 00 00 00 00 00 00 00  90 14 98 0d 01 00 00 00  00 00 00 00
                    ^
      db/version_set.cc:522:57: runtime error: member access within misaligned address 0x00010dbfa5c8 for type 'rocksdb::(anonymous namespace)::LevelFileIteratorState', which requires 16 byte alignment
      0x00010dbfa5c8: note: pointer points here
       00 00 00 00  a0 db 70 0a 01 00 00 00  00 00 00 00 00 00 00 00  90 14 98 0d 01 00 00 00  00 00 00 00
                    ^
      db/version_set.cc:522:57: runtime error: load of misaligned address 0x00010dbfa678 for type 'rocksdb::RangeDelAggregator *', which requires 16 byte alignment
      0x00010dbfa678: note: pointer points here
       01 00 00 00  d0 a1 bf 0d 01 00 00 00  00 00 00 00 00 00 00 00  f8 db 70 0a 01 00 00 00  00 00 00 00
                    ^
      db/version_set.cc:523:54: runtime error: member access within misaligned address 0x00010dbfa5c8 for type 'rocksdb::(anonymous namespace)::LevelFileIteratorState', which requires 16 byte alignment
      0x00010dbfa5c8: note: pointer points here
       00 00 00 00  a0 db 70 0a 01 00 00 00  00 00 00 00 00 00 00 00  90 14 98 0d 01 00 00 00  00 00 00 00
                    ^
      db/version_set.cc:523:54: runtime error: load of misaligned address 0x00010dbfa668 for type 'rocksdb::HistogramImpl *', which requires 16 byte alignment
      0x00010dbfa668: note: pointer points here
       01 00 00 00  c8 88 a5 0d 01 00 00 00  00 00 00 00 01 00 00 00  d0 a1 bf 0d 01 00 00 00  00 00 00 00
                    ^
      db/version_set.cc:524:9: runtime error: member access within misaligned address 0x00010dbfa5c8 for type 'rocksdb::(anonymous namespace)::LevelFileIteratorState', which requires 16 byte alignment
      0x00010dbfa5c8: note: pointer points here
       00 00 00 00  a0 db 70 0a 01 00 00 00  00 00 00 00 00 00 00 00  90 14 98 0d 01 00 00 00  00 00 00 00
                    ^
      db/version_set.cc:524:47: runtime error: member access within misaligned address 0x00010dbfa5c8 for type 'rocksdb::(anonymous namespace)::LevelFileIteratorState', which requires 16 byte alignment
      0x00010dbfa5c8: note: pointer points here
       00 00 00 00  a0 db 70 0a 01 00 00 00  00 00 00 00 00 00 00 00  90 14 98 0d 01 00 00 00  00 00 00 00
                    ^
      db/version_set.cc:524:62: runtime error: member access within misaligned address 0x00010dbfa5c8 for type 'rocksdb::(anonymous namespace)::LevelFileIteratorState', which requires 16 byte alignment
      0x00010dbfa5c8: note: pointer points here
       00 00 00 00  a0 db 70 0a 01 00 00 00  00 00 00 00 00 00 00 00  90 14 98 0d 01 00 00 00  00 00 00 00
                    ^
      db/table_cache.cc:228:33: runtime error: reference binding to misaligned address 0x00010dbfa5e8 for type 'const rocksdb::ReadOptions', which requires 16 byte alignment
      0x00010dbfa5e8: note: pointer points here
       00 00 00 00  01 01 ff ff ff ff ff ff  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00
                    ^
      table/block_based_table_reader.cc:1554:41: runtime error: reference binding to misaligned address 0x00010dbfa5e8 for type 'const rocksdb::ReadOptions', which requires 16 byte alignment
      0x00010dbfa5e8: note: pointer points here
       00 00 00 00  01 01 ff ff ff ff ff ff  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00
                    ^
      table/block_based_table_reader.cc:1396:21: runtime error: reference binding to misaligned address 0x00010dbfa5e8 for type 'const rocksdb::ReadOptions', which requires 16 byte alignment
      0x00010dbfa5e8: note: pointer points here
       00 00 00 00  01 01 ff ff ff ff ff ff  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00
                    ^
      include/rocksdb/options.h:931:8: runtime error: reference binding to misaligned address 0x00010dbfa628 for type 'const std::function<void ()>', which requires 16 byte alignment
      0x00010dbfa628: note: pointer points here
       00 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00
                    ^
      /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/functional:1584:13: runtime error: load of misaligned address 0x00010dbfa648 for type '__base *const' (aka '__base<void ()> *const'), which requires 16 byte alignment
      0x00010dbfa648: note: pointer points here
       00 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  c8 a5 97 0d 01 00 00 00  38 36 9b 0d
                    ^
      table/block_based_table_reader.cc:1555:24: runtime error: reference binding to misaligned address 0x00010dbfa5e8 for type 'const rocksdb::ReadOptions', which requires 16 byte alignment
      0x00010dbfa5e8: note: pointer points here
       00 00 00 00  01 01 ff ff ff ff ff ff  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00
                    ^
      db/table_cache.cc:244:54: runtime error: load of misaligned address 0x00010dbfa618 for type 'const bool', which requires 16 byte alignment
      0x00010dbfa618: note: pointer points here
       00 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00
                    ^
      db/table_cache.cc:246:49: runtime error: reference binding to misaligned address 0x00010dbfa5e8 for type 'const rocksdb::ReadOptions', which requires 16 byte alignment
      0x00010dbfa5e8: note: pointer points here
       00 00 00 00  01 01 ff ff ff ff ff ff  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00
                    ^
      db/version_set.cc:532:12: runtime error: member access within misaligned address 0x00010dbfa5c8 for type 'rocksdb::(anonymous namespace)::LevelFileIteratorState', which requires 16 byte alignment
      0x00010dbfa5c8: note: pointer points here
       00 00 00 00  a0 db 70 0a 01 00 00 00  00 00 00 00 00 00 00 00  90 14 98 0d 01 00 00 00  00 00 00 00
                    ^
      db/version_set.cc:532:12: runtime error: member access within misaligned address 0x00010dbfa5e8 for type 'const rocksdb::ReadOptions', which requires 16 byte alignment
      0x00010dbfa5e8: note: pointer points here
       00 00 00 00  01 01 ff ff ff ff ff ff  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00
                    ^
      db/version_set.cc:532:26: runtime error: load of misaligned address 0x00010dbfa5f8 for type 'const rocksdb::Slice *const', which requires 16 byte alignment
      0x00010dbfa5f8: note: pointer points here
       00 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00
                    ^
      version_set.cc:493: runtime error: member call on misaligned address 0x00010dbfa5c8 for type 'rocksdb::(anonymous namespace)::LevelFileIteratorState', which requires 16 byte alignment
      0x00010dbfa5c8: note: pointer points here
       00 00 00 00  a0 db 70 0a 01 00 00 00  00 00 00 00 00 00 00 00  90 14 98 0d 01 00 00 00  00 00 00 00
                    ^
      version_set.cc:493: runtime error: member call on misaligned address 0x00010dbfa5e8 for type 'rocksdb::ReadOptions', which requires 16 byte alignment
      0x00010dbfa5e8: note: pointer points here
       00 00 00 00  01 01 ff ff ff ff ff ff  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00
                    ^
      options.h:931: runtime error: member call on misaligned address 0x00010dbfa5e8 for type 'rocksdb::ReadOptions', which requires 16 byte alignment
      0x00010dbfa5e8: note: pointer points here
       00 00 00 00  01 01 ff ff ff ff ff ff  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00
                    ^
      options.h:931: runtime error: member call on misaligned address 0x00010dbfa628 for type 'std::__1::function<void ()>', which requires 16 byte alignment
      0x00010dbfa628: note: pointer points here
       00 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00
                    ^
      functional:1765: runtime error: member call on misaligned address 0x00010dbfa628 for type 'std::__1::function<void ()>', which requires 16 byte alignment
      0x00010dbfa628: note: pointer points here
       00 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00
                    ^
      /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/functional:1766:9: runtime error: member access within misaligned address 0x00010dbfa628 for type 'std::__1::function<void ()>', which requires 16 byte alignment
      0x00010dbfa628: note: pointer points here
       00 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00
                    ^
      /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/functional:1766:9: runtime error: load of misaligned address 0x00010dbfa648 for type '__base *' (aka '__base<void ()> *'), which requires 16 byte alignment
      0x00010dbfa648: note: pointer points here
       00 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  c8 a5 97 0d 01 00 00 00  38 36 9b 0d
                    ^
      /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/functional:1766:27: runtime error: member access within misaligned address 0x00010dbfa628 for type 'std::__1::function<void ()>', which requires 16 byte alignment
      0x00010dbfa628: note: pointer points here
       00 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00
                    ^
      /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/functional:1768:14: runtime error: member access within misaligned address 0x00010dbfa628 for type 'std::__1::function<void ()>', which requires 16 byte alignment
      0x00010dbfa628: note: pointer points here
       00 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00
                    ^
      /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/functional:1768:14: runtime error: load of misaligned address 0x00010dbfa648 for type '__base *' (aka '__base<void ()> *'), which requires 16 byte alignment
      0x00010dbfa648: note: pointer points here
       00 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  c8 a5 97 0d 01 00 00 00  38 36 9b 0d
                    ^
      [       OK ] DBPropertiesTest.ReadLatencyHistogramByLevel (1599 ms)
      [----------] 1 test from DBPropertiesTest (1599 ms total)
      
      [----------] Global test environment tear-down
      [==========] 1 test from 1 test case ran. (1599 ms total)
      [  PASSED  ] 1 test.
      ```
      
      So it seems the root cause is that the internal implementation of `std::function` on macOS (and perhaps with libc++ generally?) requires 16-byte aligned memory, but the arena allocator only guarantees that the returned memory will be `sizeof(void*)` aligned, which is only 8-byte alignment on my machine. This patch solves the problem by adjusting the allocator to derive the necessary alignment from `alignof(std::max_align_t)`, which is properly 16 bytes on my machine.
      
      As I mentioned in #2265, none of RocksDB's tests will cause this unaligned access to actually abort the process, but, on macOS, linking CockroachDB against a version of RocksDB with the above patch and letting it run for just a few seconds will cause a SIGABRT.
      
      ```
      Process 19792 stopped
      * thread #2, stop reason = EXC_BAD_ACCESS (code=EXC_I386_GPFLT)
          frame #0: 0x0000000004f5e78f cockroach`DBNewIter + 95
      cockroach`DBNewIter:
      ->  0x4f5e78f <+95>:  callq  *0x28(%rax)
          0x4f5e792 <+98>:  jmp    0x4f5e79e                 ; <+110>
          0x4f5e794 <+100>: movq   -0x50(%rbp), %rcx
          0x4f5e798 <+104>: movq   %rax, %rdi
      (lldb) bt
      * thread #2, stop reason = EXC_BAD_ACCESS (code=EXC_I386_GPFLT)
        * frame #0: 0x0000000004f5e78f cockroach`DBNewIter + 95
      ```
      
      I'd get you a backtrace, but [Go doesn't include cgo debug information on macOS](https://github.com/golang/go/issues/6942). I've also tried building against libc++ on Linux, where debug information would be available, but I can't seem to trigger the bug there.
      
      In any case, this PR both fixes the segfault in CockroachDB and fixes the warnings reported by ubsan.
      Closes https://github.com/facebook/rocksdb/pull/2347
      
      Differential Revision: D5108596
      
      Pulled By: yiwu-arbug
      
      fbshipit-source-id: bd5e4323b2ce915ed4fe78e123cb8996aec75a00
      c0208dff
    • C
      VersionBuilder: Erase with iterators for better performance · b8cea7cc
      Changli Gao 提交于
      Summary: Closes https://github.com/facebook/rocksdb/pull/3007
      
      Differential Revision: D6077701
      
      Pulled By: yiwu-arbug
      
      fbshipit-source-id: a6fd5b8a23f4feb1660b9ce027f651a7e90352b3
      b8cea7cc
    • C
      Move ~Comparator define to comparator.h · f7843f30
      codeeply 提交于
      Summary:
      When I impl my own comparator, and build in release mode.
      The following compile error occurs.
      undefined reference to `typeinfo for rocksdb::Comparator'
      
      This fix allows users build with RTTI off when has their own comparator.
      Closes https://github.com/facebook/rocksdb/pull/3008
      
      Differential Revision: D6077354
      
      Pulled By: yiwu-arbug
      
      fbshipit-source-id: 914c26dbab72f0ad1f0e15f8666a3fb2f10bfed8
      f7843f30
  5. 17 10月, 2017 2 次提交
  6. 14 10月, 2017 2 次提交
  7. 13 10月, 2017 3 次提交
  8. 12 10月, 2017 3 次提交
  9. 11 10月, 2017 3 次提交
  10. 10 10月, 2017 4 次提交
  11. 07 10月, 2017 4 次提交
    • Y
      WritePrepare Txn: Cancel flush/compaction before destruction · 17c6325e
      Yi Wu 提交于
      Summary:
      On WritePreparedTxnDB destruct there could be running compaction/flush holding a SnapshotChecker, which holds a pointer back to WritePreparedTxnDB. Make sure those jobs finished before destructing WritePreparedTxnDB.
      
      This is caught by TransactionTest::SeqAdvanceTest.
      Closes https://github.com/facebook/rocksdb/pull/2982
      
      Differential Revision: D6002957
      
      Pulled By: yiwu-arbug
      
      fbshipit-source-id: f1e70390c9798d1bd7959f5c8e2a1c14100773c3
      17c6325e
    • M
      WritePrepared Txn: end-to-end tests · ec6c5383
      Maysam Yabandeh 提交于
      Summary:
      Enable WritePrepared policy for existing transaction tests.
      Closes https://github.com/facebook/rocksdb/pull/2972
      
      Differential Revision: D5993614
      
      Pulled By: maysamyabandeh
      
      fbshipit-source-id: d1eb53e2920c4e2a56434bb001231c98426f3509
      ec6c5383
    • S
      Enable WAL for blob index · da29eba4
      Sagar Vemuri 提交于
      Summary:
      Enabled WAL, during GC, for blob index which is stored on regular RocksDB.
      Closes https://github.com/facebook/rocksdb/pull/2975
      
      Differential Revision: D5997384
      
      Pulled By: sagar0
      
      fbshipit-source-id: b76c1487d8b5be0e36c55e8d77ffe3d37d63d85b
      da29eba4
    • Y
      WritePrepared Txn: Compaction/Flush · d1b74b0c
      Yi Wu 提交于
      Summary:
      Update Compaction/Flush to support WritePreparedTxnDB: Add SnapshotChecker which is a proxy to query WritePreparedTxnDB::IsInSnapshot. Pass SnapshotChecker to DBImpl on WritePreparedTxnDB open. CompactionIterator use it to check if a key has been committed and if it is visible to a snapshot. In CompactionIterator:
      * check if key has been committed. If not, output uncommitted keys AS-IS.
      * use SnapshotChecker to check if key is visible to a snapshot when in need.
      * do not output key with seq = 0 if the key is not committed.
      Closes https://github.com/facebook/rocksdb/pull/2926
      
      Differential Revision: D5902907
      
      Pulled By: yiwu-arbug
      
      fbshipit-source-id: 945e037fdf0aa652dc5ba0ad879461040baa0320
      d1b74b0c
  12. 06 10月, 2017 1 次提交