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Summary: Problem: - `DB::SanitizeOptions` strips trailing slash from `wal_dir` but not `dbname` - We check whether `wal_dir` and `dbname` refer to the same directory using string equality: https://github.com/facebook/rocksdb/blob/master/db/repair.cc#L258 - Providing `dbname` with trailing slash causes default `wal_dir` to be misidentified as a separate directory. - Then the repair tries to add all SST files to the `VersionEdit` twice (once for `dbname` dir, once for `wal_dir`) and fails with coredump. Solution: - Add a new `Env` function, `AreFilesSame`, which uses device and inode number to check whether files are the same. It's currently only implemented in `PosixEnv`. - Migrate repair to use `AreFilesSame` to check whether `dbname` and `wal_dir` are same. If unsupported, falls back to string comparison. Closes https://github.com/facebook/rocksdb/pull/2827 Differential Revision: D5761349 Pulled By: ajkr fbshipit-source-id: c839d548678b742af1166d60b09abd94e5476238 |
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| .. | ||
| env.cc | ||
| env_basic_test.cc | ||
| env_chroot.cc | ||
| env_chroot.h | ||
| env_encryption.cc | ||
| env_hdfs.cc | ||
| env_posix.cc | ||
| env_test.cc | ||
| io_posix.cc | ||
| io_posix.h | ||
| mock_env.cc | ||
| mock_env.h | ||
| mock_env_test.cc | ||
| posix_logger.h | ||