The second HBase 1.4.0 release candidate (RC1) is available for download at https://dist.apache.org/repos/dist/dev/hbase/hbase-1.4.0RC1/ and Maven artifacts are available in the temporary repository https://repository.apache.org/content/repositories/orgapachehbase-1186/ .
The git tag corresponding to the candidate is '1.4.0RC1' (10b9b9fae6). A detailed source and binary compatibility report for this release is available for your review at https://dist.apache.org/repos/dist/dev/hbase/hbase-1.4.0RC1/hbase-1.3.1-1.4.0RC1_compatibility_report.html . All reported compatibility issues should comply with policy but please review them carefully. A list of the 660 issues resolved in this release can be found at https://s.apache.org/OErT . The changes since RC0 are: * [HBASE-19180] - Remove unused imports from AlwaysPasses * [HBASE-19373] - Fix Checkstyle error in hbase-annotations * [HBASE-19435] - Reopen Files for ClosedChannelException in BucketCache * [HBASE-19465] - Required httpcore and httpclient jars not included in binary distribution * [HBASE-19467] - rsgroups shell commands don't properly display elapsed time Please try out the candidate and vote +1/0/-1. This vote will be open for at least 72 hours. Unless objection I will try to close it Monday December 18, 2017 if we have sufficient votes. Prior to making this announcement I made the following preflight checks to 1.4.0RC0 (3d571827cb): RAT check passes (7u80) Unit test suite passes (8u131) LTT load 1M rows with 100% verification and 20% updates (8u131) PE randomWrite, randomRead, scanRange100 (8u131) 100M rows ITBLL (8u131) and the following preflight checks to 1.4.0RC1 (10b9b9fae6): RAT check passes (7u80) Unit test suite passes (8u131) Between now and when I want to close the vote I'll write up human readable release notes for the release announcement as promised. I also have agreed to run a scale ITBLL test, a performance comparison with 1.2 using YCSB, a performance comparison with 1.2 using PE, and an analysis of code and allocation hot spot changes from 1.2, all of which I will publish when available and factor in to my vote. -- Best regards, Andrew
