CDH 4 Release Notes

The following lists all Apache HBase Jiras included in CDH 4 that are not included in the Apache HBase base version 0.92.1. The hbase-0.92.1+19.CHANGES.txt file lists all changes included in CDH 4. The patch for each change can be found in the cloudera/patches directory in the release tarball.

Changes Not In Apache HBase 0.92.1

HBase

Bug

[HBASE-5787] - Table owner can't disable/delete its own table
[HBASE-5780] - Fix race in HBase regionserver startup vs ZK SASL authentication
[HBASE-5781] - Zookeeper session got closed while trying to assign the region to RS using hbck -fix
[HBASE-5665] - Repeated split causes HRegionServer failures and breaks table
[HBASE-5638] - Backport to 0.90 and 0.92 - NPE reading ZK config in HBase
[HBASE-5624] - Aborting regionserver when splitting region, may cause daughter region not assigned by ServerShutdownHandler.
[HBASE-5596] - Few minor bugs from HBASE-5209
[HBASE-5563] - HRegionInfo#compareTo should compare regionId as well

Improvement

[HBASE-5533] - Add more metrics to HBase
[HBASE-5655] - Cap space usage of default log4j rolling policy
[HBASE-5589] - Add of the offline call to the Master Interface
[HBASE-5588] - Deprecate/remove AssignmentManager#clearRegionFromTransition
[HBASE-4440] - add an option to presplit table to PerformanceEvaluation

New Feature

[HBASE-5128] - [uber hbck] Online automated repair of table integrity and region consistency problems