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gaojinchao commented on HBASE-3933: ----------------------------------- @Eugene In your patches, You only deale with the root/meta regionserver. If a normal regionserver registers laterly. Master will process it as a dead one. Some regions in the later one will be opened twice. > Hmaster throw NullPointerException > ---------------------------------- > > Key: HBASE-3933 > URL: https://issues.apache.org/jira/browse/HBASE-3933 > Project: HBase > Issue Type: Bug > Components: master > Affects Versions: 0.90.6 > Reporter: gaojinchao > Assignee: Eugene Koontz > Attachments: HBASE-3933.patch, Hmastersetup0.90 > > > NullPointerException while hmaster starting. > {code} > java.lang.NullPointerException > at java.util.TreeMap.getEntry(TreeMap.java:324) > at java.util.TreeMap.get(TreeMap.java:255) > at > org.apache.hadoop.hbase.master.AssignmentManager.addToServers(AssignmentManager.java:1512) > at > org.apache.hadoop.hbase.master.AssignmentManager.regionOnline(AssignmentManager.java:606) > at > org.apache.hadoop.hbase.master.AssignmentManager.processFailover(AssignmentManager.java:214) > at > org.apache.hadoop.hbase.master.HMaster.finishInitialization(HMaster.java:402) > at org.apache.hadoop.hbase.master.HMaster.run(HMaster.java:283) > {code} -- 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