« Changelog History


RocksDB v6.17.0 Release Notes

Release Date: 2021-01-15 // over 3 years ago

  • Behavior Changes

    • When verifying full file checksum with DB::VerifyFileChecksums(), we now fail with Status::InvalidArgument if the name of the checksum generator used for verification does not match the name of the checksum generator used for protecting the file when it was created.
    • Since RocksDB does not continue write the same file if a file write fails for any reason, the file scope write IO error is treated the same as retryable IO error. More information about error handling of file scope IO error is included in ErrorHandler::SetBGError.

    🐛 Bug Fixes

    • 🔖 Version older than 6.15 cannot decode VersionEdits WalAddition and WalDeletion, fixed this by changing the encoded format of them to be ignorable by older versions.
    • 🛠 Fix a race condition between DB startups and shutdowns in managing the periodic background worker threads. One effect of this race condition could be the process being terminated.

    Public API Change

    • Add a public API WriteBufferManager::dummy_entries_in_cache_usage() which reports the size of dummy entries stored in cache (passed to WriteBufferManager). Dummy entries are used to account for DataBlocks.
    • ➕ Add a SystemClock class that contains the time-related methods from Env. The original methods in Env may be deprecated in a future release. This class will allow easier testing, development, and expansion of time-related features.
    • ➕ Add a public API GetRocksBuildProperties and GetRocksBuildInfoAsString to get properties about the current build. These properties may include settings related to the GIT settings (branch, timestamp). This change also sets the "build date" based on the GIT properties, rather than the actual build time, thereby enabling more reproducible builds.