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HBase >> mail # dev >> [ANNOUNCE] HBase 0.94.18 is available for download


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[ANNOUNCE] HBase 0.94.18 is available for download
The HBase Team is pleased to announce the immediate release of HBase 0.94.18.
Download it from your favorite Apache mirror [1]. This release has also been pushed to Apache's maven repository.

All previous 0.92.x and 0.94.x releases can upgraded to 0.94.18 via a rolling upgrade without downtime, intermediary versions can be skipped.

HBase 0.94.18 is a bug fix release with 26 fixes:
    [HBASE-9708] - Improve Snapshot Name Error Message
    [HBASE-9778] - Add hint to ExplicitColumnTracker to avoid seeking
    [HBASE-10514] - Forward port HBASE-10466, possible data loss when failed flushes
    [HBASE-10549] - When there is a hole, LoadIncrementalHFiles will hang in an infinite loop.
    [HBASE-10575] - ReplicationSource thread can't be terminated if it runs into the loop to contact peer's zk ensemble and fails continuously
    [HBASE-10583] - backport HBASE-8402 to 0.94 - ScanMetrics depends on number of rpc calls to the server.
    [HBASE-10594] - Speed up TestRestoreSnapshotFromClient
    [HBASE-10598] - Written data can not be read out because MemStore#timeRangeTracker might be updated concurrently
    [HBASE-10614] - Master could not be stopped
    [HBASE-10622] - Improve log and Exceptions in Export Snapshot
    [HBASE-10624] - Fix 2 new findbugs warnings introduced by HBASE-10598
    [HBASE-10627] - A logic mistake in HRegionServer isHealthy
    [HBASE-10631] - Avoid extra seek on FileLink open
    [HBASE-10642] - Add M/R over snapshots to 0.94
    [HBASE-10669] - [hbck tool] Usage is wrong for hbck tool for -sidelineCorruptHfiles option
    [HBASE-10682] - region_mover.rb throws "can't convert nil into String" for regions moved
    [HBASE-10712] - Backport HBASE-8304 to 0.94 and 0.96
    [HBASE-10716] - [Configuration]: hbase.regionserver.region.split.policy should be part of hbase-default.xml
    [HBASE-10718] - TestHLogSplit fails when it sets a KV size to be negative
    [HBASE-10722] - [0.94] HRegion.computeHDFSBlocksDistribution does not account for links and reference files.
    [HBASE-10731] - Fix environment variables typos in scripts
    [HBASE-10738] - AssignmentManager should shut down executors on stop
    [HBASE-10745] - Access ShutdownHook#fsShutdownHooks should be synchronized
    [HBASE-10751] - TestHRegion testWritesWhileScanning occasional fail since HBASE-10514 went in
    [HBASE-8604] - improve reporting of incorrect peer address in replication
    [HBASE-9914] - Port fix for HBASE-9836 'Intermittent TestRegionObserverScannerOpenHook#testRegionObserverCompactionTimeStacking failure' to 0.94

Notable is HBASE-10642, which ports MapReduce over HBase table-snapshots to 0.94.

See also the full release notes [2].
Thanks to everybody who contributed to this release!

Yours,
The HBase Team

1. http://www.apache.org/dyn/closer.cgi/hbase/
2. https://issues.apache.org/jira/secure/ReleaseNote.jspa?projectId=12310753&version=12325952