Revision 0ce0edbe120f0ec5c17b3cf7d54a09b1f911e8db authored by Yanqin Jin on 21 November 2019, 00:32:17 UTC, committed by Facebook Github Bot on 21 November 2019, 00:36:29 UTC
Summary:
Use db mutex to protect the execution of Version::GetColumnFamilyMetaData()
called in DBImpl::GetColumnFamilyMetaData().
Without mutex, GetColumnFamilyMetaData() races with MarkFilesBeingCompacted()
for access to FileMetaData::being_compacted.
Other than mutex, there are several more alternatives.

- Make FileMetaData::being_compacted an atomic variable. This will make
  FileMetaData non-copy-able.

- Separate being_compacted from FileMetaData. This requires re-organizing data
  structures that are already used in many places.

Test Plan (dev server):
```
make check
```
Pull Request resolved: https://github.com/facebook/rocksdb/pull/6056

Differential Revision: D18620488

Pulled By: riversand963

fbshipit-source-id: 87f89660b5d5e2ab4ef7962b7b2a7d00e346aa3b
1 parent c0983d0
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CODE_OF_CONDUCT.md -rw-r--r-- 3.3 KB
CONTRIBUTING.md -rw-r--r-- 706 bytes
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DUMP_FORMAT.md -rw-r--r-- 763 bytes
HISTORY.md -rw-r--r-- 96.5 KB
INSTALL.md -rw-r--r-- 7.5 KB
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Makefile -rw-r--r-- 69.8 KB
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src.mk -rw-r--r-- 32.8 KB
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