Last week, the HBase community released 0.94.5, which is the most stable release of HBase so far. The release includes 76 jira issues resolved, with 61 bug fixes, 8 improvements, and 2 new features.
Most of the bug fixes went against the REST server, replication, region assignment, secure client, flaky unit tests, 0.92 compatibility and various stability improvements. Some of the interesting patches in this release are:
[HBASE-3996] – Support multiple tables and scanners as input to the mapper in map/reduce jobs
[HBASE-5416] – Improve performance of scans with some kind of filters.…