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Hudson commented on HBASE-10833: -------------------------------- SUCCESS: Integrated in HBase-TRUNK #5043 (See [https://builds.apache.org/job/HBase-TRUNK/5043/]) HBASE-10833: Region assignment may fail during cluster start up (jeffreyz: rev 1582110) * /hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/master/AssignmentManager.java > Region assignment may fail during cluster start up > -------------------------------------------------- > > Key: HBASE-10833 > URL: https://issues.apache.org/jira/browse/HBASE-10833 > Project: HBase > Issue Type: Bug > Components: Region Assignment > Reporter: Jeffrey Zhong > Assignee: Jeffrey Zhong > Fix For: 0.92.3, 0.99.0, 0.98.2 > > Attachments: hbase-10833.patch > > > This is an intermittent & infrequent issue. It happens when a cluster is > starting up, only when one region server is available for region assignment > temporally and master has a transient issue to talk to the only RS > When the RPC layer has a hiccup to talk to a RS, the RS will be put in failed > server list and it will stay in failed server list for 2 sec(default value). > While the 20 region retires completes much shorter than 2 secs, the end > result is a failed assignment. > Below are the logging for the total time spent on 20 assignment retires, it > only took about 36 ms for all the retries. > {code} > 2014-03-24 18:14:43,451 WARN [AM.ZK.Worker-pool2-t59] > master.AssignmentManager: Failed assignment of > hbase:labels,,1395668310177.f7372ede6c8bd7de4e91bfeda884cffb. to > hor15n18.gq1.ygridcore.net,60020,1395684489232, trying to assign elsewhere > instead; try=1 of 20 > …. > 2014-03-24 18:14:43,487 WARN [AM.ZK.Worker-pool2-t59] > master.AssignmentManager: Failed assignment of > hbase:labels,,1395668310177.f7372ede6c8bd7de4e91bfeda884cffb. to > hor15n18.gq1.ygridcore.net,60020,1395684489232, trying to assign elsewhere > instead; try=20 of 20 > {code} -- This message was sent by Atlassian JIRA (v6.2#6252)