The HBase Team is pleased to announce the immediate release of HBase 0.94.9.
Download it from your favorite Apache mirror .
As usual, all previous 0.92.x and 0.94.x releases can upgraded to 0.94.9 via a rolling upgrade without downtime, intermediary versions can be skipped.
0.94.9 is the current stable release of HBase. It fixes the following 26 issues:
[HBASE-8453] - TestImportExport failing again due to configuration issues
[HBASE-8494] - TestRemoteAdmin#testClusterStatus should not assume 'requests' does not change
[HBASE-8522] - Archived hfiles and old hlogs may be deleted immediately by HFileCleaner, LogCleaner in HMaster
[HBASE-8555] - FilterList correctness may be affected by random ordering of sub-filter(list)
[HBASE-8590] - [0.94] BlockingMetaScannerVisitor should check for parent meta entry while waiting for split daughter
[HBASE-8639] - Poor performance of htable#getscanner in multithreaded environment due to DNS.getDefaultHost() being called in ScannerCallable#prepare()
[HBASE-8640] - ServerName in master may not initialize with the configured ipc address of hbase.master.ipc.address
[HBASE-8655] - Backport to 94 - HBASE-8346(Prefetching .META. rows in case only when useCache is set to true)
[HBASE-8656] - Rpc call may not be notified in SecureClient
[HBASE-8671] - Per-region WAL breaks CP backwards compatibility in 0.94 for non-enabled case
[HBASE-8684] - Table Coprocessor can't access external HTable by default
[HBASE-8700] - IntegrationTestBigLinkedList can fail due to random number collision
[HBASE-8724] - [0.94] ExportSnapshot should not use hbase.tmp.dir as a staging dir on hdfs
[HBASE-8742] - HTableDescriptor Properties not preserved when cloning
[HBASE-8743] - upgrade hadoop-23 version to 0.23.7
[HBASE-8749] - Potential race condition between FSUtils.renameAndSetModifyTime() and HFile/LogCleaner
[HBASE-8762] - Performance/operational penalty when calling HTable.get with a list of one Get
[HBASE-8783] - RSSnapshotManager.ZKProcedureMemberRpcs may be initialized with the wrong server name
[HBASE-5083] - Backup HMaster should have http infoport open with link to the active master
[HBASE-8609] - Make the CopyTable support startRow, stopRow options
[HBASE-8636] - Backport KeyValue Codec to 0.94 (HBASE-7413)
[HBASE-8683] - Add major compaction support in CompactionTool
[HBASE-8692] - [AccessController] Restrict HTableDescriptor enumeration
[HBASE-8702] - Make WALEditCodec pluggable
[HBASE-8504] - HTable.getRegionsInRange() should provide a non-cached API
[HBASE-8603] - Backport HBASE-6921 to 0.94
See also the full release notes .
Thanks to the 18 individuals who contributed to this release!
The HBase Team