CDH 5 Release Notes

The following lists all Apache HBase Jiras included in CDH 5 that are not included in the Apache HBase base version 0.96.1.1. The hbase-0.96.1.1-cdh5.0.6.CHANGES.txt file lists all changes included in CDH 5. The patch for each change can be found in the cloudera/patches directory in the release tarball.

Changes Not In Apache HBase 0.96.1.1

HBase

Bug

[HBASE-12376] - HBaseAdmin leaks ZK connections if failure starting watchers (ConnectionLossException)
[HBASE-11609] - LoadIncrementalHFiles fails if the namespace is specified
[HBASE-11052] - Sending random data crashes thrift service
[HBASE-10371] - Compaction creates empty hfile, then selects this file for compaction and creates empty hfile and over again
[HBASE-10312] - Flooding the cluster with administrative actions leads to collapse
[HBASE-10958] - [dataloss] Bulk loading with seqids can prevent some log entries from being replayed
[HBASE-10751] - TestHRegion testWritesWhileScanning occasional fail since HBASE-10514 went in
[HBASE-10514] - Forward port HBASE-10466, possible data loss when failed flushes
[HBASE-10890] - ExportSnapshot needs to add acquired token to job
[HBASE-10825] - Add copy-from option to ExportSnapshot
[HBASE-10770] - Don't exit from the Canary daemon mode if no regions are present
[HBASE-10766] - SnapshotCleaner allows to delete referenced files
[HBASE-10762] - clone_snapshot doesn't check for missing namespace
[HBASE-10737] - HConnectionImplementation should stop RpcClient on close
[HBASE-10718] - TestHLogSplit fails when it sets a KV size to be negative
[HBASE-10682] - region_mover.rb throws "can't convert nil into String" for regions moved
[HBASE-10622] - Improve log and Exceptions in Export Snapshot
[HBASE-9708] - Improve Snapshot Name Error Message
[HBASE-10456] - Balancer should not run if it's just turned off.
[HBASE-10639] - Unload script displays wrong counts (off by one) when unloading regions
[HBASE-10608] - Acquire the FS Delegation Token for Secure ExportSnapshot
[HBASE-10631] - Avoid extra seek on FileLink open
[HBASE-8803] - region_mover.rb should move multiple regions at a time
[HBASE-10436] - restore regionserver lists removed from hbase 0.96+ jmx
[HBASE-10582] - 0.94->0.96 Upgrade: ACL can't be repopulated when ACL table contains row for table '-ROOT' or '.META.'
[HBASE-10587] - Master metrics clusterRequests is wrong
[HBASE-10586] - hadoop2-compat IPC metric registred twice
[HBASE-10310] - ZNodeCleaner session expired for /hbase/master
[HBASE-10526] - Using Cell instead of KeyValue in HFileOutputFormat
[HBASE-10567] - Add overwrite manifest option to ExportSnapshot
[HBASE-6642] - enable_all,disable_all,drop_all can call "list" command with regex directly.
[HBASE-10537] - Let the ExportSnapshot mapper fail and retry on error
[HBASE-5356] - region_mover.rb can hang if table region it belongs to is deleted.
[HBASE-10111] - Verify that a snapshot is not corrupted before restoring it
[HBASE-10431] - Rename com.google.protobuf.ZeroCopyLiteralByteString
[HBASE-10319] - HLog should roll periodically to allow DN decommission to eventually complete.
[HBASE-7963] - HBase VerifyReplication not working when security enabled
[HBASE-10446] - Backup master gives Error 500 for debug dump
[HBASE-10435] - Lower the log level of Canary region server match
[HBASE-10426] - user_permission in security.rb calls non-existent UserPermission#getTable method
[HBASE-10338] - Region server fails to start with AccessController coprocessor if installed into RegionServerCoprocessorHost
[HBASE-10220] - Put all test service principals into the superusers list
[HBASE-10249] - TestReplicationSyncUpTool fails because failover takes too long
[HBASE-10315] - Canary shouldn't exit with 3 if there is no master running.
[HBASE-10384] - Failed to increment serveral columns in one Increment
[HBASE-10349] - Table became unusable when master balanced its region after table was dropped
[HBASE-10333] - Assignments are not retained on a cluster start
[HBASE-10264] - [MapReduce]: CompactionTool in mapred mode is missing classes in its classpath
[HBASE-10260] - Canary Doesn't pick up Configuration properly.

Improvement

[HBASE-10871] - Indefinite OPEN/CLOSE wait on busy RegionServers
[HBASE-6990] - Pretty print TTL
[HBASE-11008] - Align bulk load, flush, and compact to require Action.CREATE
[HBASE-10638] - Improve error message when there is no region server available for move
[HBASE-7849] - Provide administrative limits around bulkloads of files into a single region
[HBASE-10457] - Print corrupted file information in SnapshotInfo tool without -file option

New Feature

[HBASE-9047] - Tool to handle finishing replication when the cluster is offline
[HBASE-8369] - MapReduce over snapshot files

Task

[HBASE-10473] - Add utility for adorning http Context

Test

[HBASE-10649] - TestMasterMetrics fails occasionally
[HBASE-10543] - Two rare test failures with TestLogsCleaner and TestSplitLogWorker
[HBASE-10189] - Intermittent TestReplicationSyncUpTool failure