I just posted a patch for HBASE-16754 (dropped compaction markers during log split), which might qualify as a sinker for the RC. This issue was introduced by the change in HBASE-15441 (which fixed another log splitting issue), which went in to 1.2.1. It's a relatively rare distributed race. The impact is that at least compactions can't run until the region is reassigned. It looks like the code in 1.2 may be slightly different -- I don't see TestWALSplit for one -- but I think the same issue will apply in branch-1.2. I'll look more closely at the impact for the RC, but wanted to give a heads up.
On Mon, Oct 10, 2016 at 7:58 AM Sean Busbey <bus...@apache.org> wrote: > The first release candidate for HBase 1.2.4 is available for download at: > > https://dist.apache.org/repos/dist/dev/hbase/hbase-1.2.4RC0/ > > Maven artifacts are also available in a staging repository at: > > https://repository.apache.org/content/repositories/orgapachehbase-1155/ > > Artifacts are signed with my key (0D80DB7C) published in our KEYS > file at http://www.apache.org/dist/hbase/KEYS > > The RC corresponds to the signed tag 1.2.4RC0, which currently points > to commit ref > > 04bd0ec8e4cb2f39e5f787126f9b6645dabf27df > > The detailed source and binary compatibility report vs 1.2.3 has been > published for your review, at: > > > https://dist.apache.org/repos/dist/dev/hbase/hbase-1.2.4RC0/1.2.3_1.2.4RC0_compat_report.html > > HBase 1.2.4 is the fourth patch release in the HBase 1.2 line, continuing > on > the theme of bringing a stable, reliable database to the Hadoop and NoSQL > communities. This release includes about 30 bug fixes since 1.2.3. > Critical fixes include: > > * HBASE-16340 Xerces implementation jars removed (incompatible change) > * HBASE-15984 Given failure to parse a given WAL that was closed > cleanly, replay the WAL. > * HBASE-16721 Concurrency issue in WAL unflushed seqId tracking > > The full list of fixes included in this release is available at: > > > https://issues.apache.org/jira/secure/ReleaseNote.jspa?projectId=12310753&version=12338116 > > and in the CHANGES.txt file included in the distribution. > > Please try out this candidate and vote +/-1 by 12:00 Pacific Time on > Monday, 2016-10-17 as to whether we should release these artifacts > as HBase 1.2.4. > > thanks! > -busbey >
