Similar dance as the last time: - downloaded tarballs, both passed md5 and asc verification. [✓] - load 10m rows/host into a 0.94.6.1 secured cluster (sequentialWrite --nomapred), launch randomRead (--nomapred) test. - deployed 0.94.14 jars over existing 0.94.6.1 regionservers, restart one by one. [✓] - new job launched from 0.94.6.1 "gateway" host, with older jars installed (randomRead, mapreduce). [✓] - deployed 0.94.13 jars over existing 0.94.6.1 master, restart. [✓] - manually split test table while job running. [✓]
I noticed that it took a little while for the RS's to open regions and start serving requests once it came back online after the upgrade. I didn't record stats the last time I did this and didn't log events that closely this time either, so I don't have anything concrete for comparison. It just seemed slower than perhaps it should. No errors in the logs either, so *shrug* +1. On Mon, Nov 18, 2013 at 5:18 PM, lars hofhansl <[email protected]> wrote: > The 2nd 0.94.14 RC is available for download at > http://people.apache.org/~larsh/hbase-0.94.14-rc1/ > Signed with my code signing key: C7CFE328 > > As before 0.94.14 is mostly a bug fix release along with some significance > performance improvements: > [HBASE-9165] - Improvements to addDependencyJars > [HBASE-9138] - getHaseIntegrationTestingUtility() is misspelled > [HBASE-9799] - Change Hadoop 1.2 dependency to 1.2.1 > [HBASE-9809] - RegionTooBusyException should provide region name which > was too busy > [HBASE-9834] - Minimize byte[] copies for 'smart' clients > [HBASE-9849] - [REST] Forbidden schema delete in read only mode > [HBASE-9850] - Issues with UI for table compact/split operation > completion. After split/compaction operation using UI, the page is not > automatically redirecting back using IE8/Firefox. > [HBASE-9865] - Reused WALEdits in replication may cause RegionServers > to go OOM > [HBASE-9872] - ModifyTable does not modify the attributes of a newly > modified/changed ColumnDescriptor > [HBASE-9890] - MR jobs are not working if started by a delegated user > [HBASE-9902] - Region Server is starting normally even if clock skew > is more than default 30 seconds(or any configured). -> Regionserver node > time is greater than master node time > [HBASE-9906] - Restore snapshot fails to restore the meta edits > sporadically > [HBASE-9915] - Performance: isSeeked() in EncodedScannerV2 always > returns false > [HBASE-9952] - Snapshot restore may fail due to NullPointerException > [HBASE-9956] - Remove keyLength cache from KeyValue > [HBASE-9970] - HBase BulkLoad, table is creating with the timestamp > key also as a column to the table. > [HBASE-9971] - Port part of HBASE-9958 to 0.94 - change lock scope in > locateRegion > [HBASE-9975] - Not starting ReplicationSink when using custom > implementation for the ReplicationSink. > [HBASE-9993] - 0.94: HBASE-9865 breaks coprocessor compatibility with > WALEdit. > [HBASE-4654] - [replication] Add a check to make sure we don't > replicate to ourselves > [HBASE-8438] - Extend bin/hbase to print a "mapreduce classpath" > [HBASE-9715] - Backport -in_memory option support for LoadTestTool > from trunk > [HBASE-9831] - 'hbasefsck.numthreads' property isn't passed to hbck > via cmdline -D option > [HBASE-9894] - remove the inappropriate assert statement in > Store.getSplitPoint() > [HBASE-9963] - Remove the ReentrantReadWriteLock in the MemStore > [HBASE-8397] - improve unit-test coverage of package > org.apache.hadoop.hbase.master.metrics (0.94) > [HBASE-8543] - fix coverage org.apache.hadoop.hbase.rest.client > [HBASE-8552] - fix coverage org.apache.hadoop.hbase.rest.filter > [HBASE-8556] - fix coverage org.apache.hadoop.hbase.metrics.histogram > [HBASE-8557] - fix coverage org.apache.hadoop.hbase.rest.metrics > [HBASE-8559] - increase unit-test coverage of package > org.apache.hadoop.hbase.coprocessor > > I am especially exited about HBASE-9915, which provides a 2x scan > performance improvement with block encoders; and HBASE-9865, which > significantly reduces memory consumption used by replication. > > The list of changes is also available here: > https://issues.apache.org/jira/secure/ReleaseNote.jspa?projectId=12310753&version=12325047 > > Here're the jenkins runs for this RC: > https://builds.apache.org/job/HBase-0.94.14/13/ and > https://builds.apache.org/job/HBase-0.94.14-security/13/ > > Please try out the RC, check out the doc, take it for a spin, etc, and > vote +1/-1 by EOD November 22nd on whether we should release this as > 0.94.14. > > Thanks. > > -- Lars > >
