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Hudson commented on HBASE-4298: ------------------------------- Integrated in HBase-0.92 #105 (See [https://builds.apache.org/job/HBase-0.92/105/]) HBASE-4298 Support to drain RS nodes through ZK stack : Files : * /hbase/branches/0.92/CHANGES.txt * /hbase/branches/0.92/src/main/java/org/apache/hadoop/hbase/master/AssignmentManager.java * /hbase/branches/0.92/src/main/java/org/apache/hadoop/hbase/master/HMaster.java * /hbase/branches/0.92/src/main/java/org/apache/hadoop/hbase/master/ServerManager.java * /hbase/branches/0.92/src/main/java/org/apache/hadoop/hbase/zookeeper/DrainingServerTracker.java * /hbase/branches/0.92/src/main/java/org/apache/hadoop/hbase/zookeeper/ZooKeeperWatcher.java * /hbase/branches/0.92/src/test/java/org/apache/hadoop/hbase/TestDrainingServer.java > Support to drain RS nodes through ZK > ------------------------------------ > > Key: HBASE-4298 > URL: https://issues.apache.org/jira/browse/HBASE-4298 > Project: HBase > Issue Type: Improvement > Components: master > Affects Versions: 0.90.4 > Environment: all > Reporter: Aravind Gottipati > Priority: Critical > Labels: patch > Fix For: 0.90.5 > > Attachments: 4298-trunk-v2.txt, 4298-trunk-v3.txt, 90_hbase.patch, > drainingservertest-v2.txt, drainingservertest.txt, trunk_hbase.patch, > trunk_with_test.txt > > > HDFS currently has a way to exclude certain datanodes and prevent them from > getting new blocks. HDFS goes one step further and even drains these nodes > for you. This enhancement is a step in that direction. > The idea is that we mark nodes in zookeeper as draining nodes. This means > that they don't get any more new regions. These draining nodes look exactly > the same as the corresponding nodes in /rs, except they live under /draining. > Eventually, support for draining them can be added. I am submitting two > patches for review - one for the 0.90 branch and one for trunk (in git). > Here are the two patches > 0.90 - > https://github.com/aravind/hbase/commit/181041e72e7ffe6a4da6d82b431ef7f8c99e62d2 > trunk - > https://github.com/aravind/hbase/commit/e127b25ae3b4034103b185d8380f3b7267bc67d5 > I have tested both these patches and they work as advertised. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira