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xufeng commented on HBASE-4951: ------------------------------- I tested this patch in 0.90. It can not work in following scenarios: 1.master startup,one regionserver startup. 2.waitForRegionServers over and ok. 3.run the bin/hbase master stop before root region be assigned. the bin/hbase master stop will stop the cluster,the regionserver will been killed first. The root region has no chance to be assigned successfully,it will block in catalogTracker.waitForRoot(). > master process can not be stopped when it is initializing > --------------------------------------------------------- > > Key: HBASE-4951 > URL: https://issues.apache.org/jira/browse/HBASE-4951 > Project: HBase > Issue Type: Bug > Components: master > Affects Versions: 0.90.3 > Reporter: xufeng > Assignee: ramkrishna.s.vasudevan > Priority: Critical > Fix For: 0.90.6 > > Attachments: HBASE-4951.patch > > > It is easy to reproduce by following step: > step1:start master process.(do not start regionserver process in the cluster). > the master will wait the regionserver to check in: > org.apache.hadoop.hbase.master.ServerManager: Waiting on regionserver(s) to > checkin > step2:stop the master by sh command bin/hbase master stop > result:the master process will never die because catalogTracker.waitForRoot() > method will block unitl the root region assigned. -- 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