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Shuaifeng Zhou commented on HBASE-14407: ---------------------------------------- [~apurtell] > NotServingRegion: hbase region closed forever > --------------------------------------------- > > Key: HBASE-14407 > URL: https://issues.apache.org/jira/browse/HBASE-14407 > Project: HBase > Issue Type: Bug > Components: Region Assignment > Affects Versions: 0.98.10, 1.2.0, 1.1.2, 1.3.0 > Reporter: Shuaifeng Zhou > Assignee: Shuaifeng Zhou > Priority: Critical > Attachments: 14407-0.98.patch, 14407-branch-1.2.patch, > hbase-14407-0.98.patch, hbase-14407-1.1.patch, hbase-14407-1.2.patch, > hs4.log, master.log > > > I found a situation may cause region closed forever, and this situation > happend usually on my cluster, version is 0.98.10, but 1.1.2 also have the > problem: > 1, master send region open to regionserver > 2, rs open a handler do openregion > 3, rs return resopnse to master > 3, master not received the response, or timeout, send open region again > 4, rs already opened the region > 5, master processAlreadyOpenedRegion, update regionstate open in master > memory > 6, master received zk message region opened(for some reason late, eg: net > work), and triger update regionstate open, but find that region already > opened, ERROR! > 7, master send close region, and region be closed forever. -- This message was sent by Atlassian JIRA (v6.3.4#6332)