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Andrew Purtell commented on HBASE-3800: --------------------------------------- The fix is to delete the file in the IOException handler before retry. > If HMaster is started after NN without starting DN in Hbase 090.2 then > HMaster is not able to start due to AlreadyCreatedException for > /hbase/hbase.version > ----------------------------------------------------------------------------------------------------------------------------------------------------------- > > Key: HBASE-3800 > URL: https://issues.apache.org/jira/browse/HBASE-3800 > Project: HBase > Issue Type: Bug > Components: master > Affects Versions: 0.90.2 > Reporter: gaojinchao > Assignee: Andrew Purtell > > It reproduces when HMaster is started for the first time and NN is started > without starting DN > Hmaster logs: > 2011-04-19 16:49:09,208 DEBUG > org.apache.hadoop.hbase.master.ActiveMasterManager: A master is now available > 2011-04-19 16:49:09,400 WARN org.apache.hadoop.hbase.util.FSUtils: Version > file was empty, odd, will try to set it. > 2011-04-19 16:51:09,674 WARN org.apache.hadoop.hdfs.DFSClient: DataStreamer > Exception: org.apache.hadoop.ipc.RemoteException: java.io.IOException: File > /hbase/hbase.version could only be replicated to 0 nodes, instead of 1 > ........... > 2011-04-19 16:51:09,674 WARN org.apache.hadoop.hdfs.DFSClient: Error Recovery > for block null bad datanode[0] nodes == null > 2011-04-19 16:51:09,674 WARN org.apache.hadoop.hdfs.DFSClient: Could not get > block locations. Source file "/hbase/hbase.version" - Aborting... > 2011-04-19 16:51:09,674 WARN org.apache.hadoop.hbase.util.FSUtils: Unable to > create version file at hdfs://C4C1:9000/hbase, retrying: > org.apache.hadoop.ipc.RemoteException: java.io.IOException: File > /hbase/hbase.version could only be replicated to 0 nodes, instead of 1 > ........... > 2011-04-19 16:56:19,695 WARN org.apache.hadoop.hbase.util.FSUtils: Unable to > create version file at hdfs://C4C1:9000/hbase, retrying: > org.apache.hadoop.ipc.RemoteException: > org.apache.hadoop.hdfs.protocol.AlreadyBeingCreatedException: failed to > create file /hbase/hbase.version for > DFSClient_hb_m_C4C1.site:60000_1303202948768 on client 157.5.100.1 because > current leaseholder is trying to recreate file. > org.apache.hadoop.hdfs.protocol.AlreadyBeingCreatedException: failed to > create file /hbase/hbase.version for > DFSClient_hb_m_C4C1.site:60000_1303202948768 on client 157.5.100.1 because > current leaseholder is trying to recreate file. > at > org.apache.hadoop.hdfs.server.namenode.FSNamesystem.startFileInternal(FSNamesystem.java:1068) > .... -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira