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badger v1.6.1-rc1 Release Notes

Release Date: 2020-03-24 // about 4 years ago

  • 🆕 New APIs

    • Badger.DB
      • NewWriteBatchAt (#948)
    • Badger.Options
      • WithEventLogging (#1035)
      • WithVerifyValueChecksum (#1052)
      • WithBypassLockGuard (#1243)

    🔋 Features

    • 👌 Support checksum verification for values read from vlog (#1052)
    • ➕ Add EventLogging option (#1035)
    • 👌 Support WriteBatch API in managed mode (#948)
    • ➕ Add support for watching nil prefix in Subscribe API (#1246)

    🛠 Fixed

    • 🎉 Initialize vlog before starting compactions in db.Open (#1226)
    • 🛠 Fix int overflow for 32bit (#1216)
    • ✂ Remove the 'this entry should've caught' log from value.go (#1170)
    • 🛠 Fix merge iterator duplicates issue (#1157)
    • 🛠 Fix segmentation fault in vlog.Read (header.Decode) (#1150)
    • 🛠 Fix VerifyValueChecksum checks (#1138)
    • 🛠 Fix windows dataloss issue (#1134)
    • 🛠 Fix request increment ref bug (#1121)
    • Limit manifest's change set size (#1119)
    • 🛠 Fix deadlock in discard stats (#1070)
    • 🔒 Acquire lock before unmapping vlog files (#1050)
    • 🚚 Set move key's expiresAt for keys with TTL (#1006)
    • 🛠 Fix deadlock when flushing discard stats. (#976)
    • 🛠 Fix table.Smallest/Biggest and iterator Prefix bug (#997)
    • 🛠 Fix boundaries on GC batch size (#987)
    • 🔒 Lock log file before munmap (#949)
    • 🔊 VlogSize to store correct directory name to expvar.Map (#956)
    • 🛠 Fix transaction too big issue in restore (#957)
    • 🛠 Fix race condition in updateDiscardStats (#973)
    • Cast results of len to uint32 to fix compilation in i386 arch. (#961)
    • ⬇️ Drop discard stats if we can't unmarshal it (#936)
    • Open all vlog files in RDWR mode (#923)
    • 🛠 Fix race condition in flushDiscardStats function (#921)
    • Ensure rewrite in vlog is within transactional limits (#911)
    • 🛠 Fix prefix bug in key iterator and allow all versions (#950)
    • 🛠 Fix discard stats moved by GC bug (#929)

    🐎 Performance

    • 👉 Use fastRand instead of locked-rand in skiplist (#1173)
    • 🛠 Fix checkOverlap in compaction (#1166)
    • ⚡️ Optimize createTable in stream_writer.go (#1132)
    • ➕ Add capacity to slice creation when capacity is known (#1103)
    • 🔀 Introduce fast merge iterator
    • Introduce StreamDone in Stream Writer (#1061)
    • Flush vlog buffer if it grows beyond threshold (#1067)
    • Binary search based table picker (#983)
    • Making the stream writer APIs goroutine-safe (#959)
    • Replace FarmHash with AESHash for Oracle conflicts (#952)
    • 🔄 Change file picking strategy in compaction (#894)
    • 👉 Use trie for prefix matching (#851)
    • 🛠 Fix busy-wait loop in Watermark (#920)