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From "Jeffrey Zhong (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-10895) unassign a region fails due to the hosting region server is in FailedServerList
Date Wed, 02 Apr 2014 01:46:17 GMT
Jeffrey Zhong created HBASE-10895:
-------------------------------------

             Summary: unassign a region fails due to the hosting region server is in FailedServerList
                 Key: HBASE-10895
                 URL: https://issues.apache.org/jira/browse/HBASE-10895
             Project: HBase
          Issue Type: Bug
          Components: Region Assignment
    Affects Versions: 0.98.1, 0.96.1, 0.99.0
            Reporter: Jeffrey Zhong
            Assignee: Jeffrey Zhong


This issue is similar as HBASE-10833 which deal with the sendRegionOpen RPC while the JIRA
issue happens with sendRegionClose.

Once a RS in in failed server list due to a network hiccup, AM quickly exhausted all retries
and failed the whole region assignment later. Below is a sample stack trace:

{noformat}
2014-03-31 13:39:10,056 INFO  [AM.-pool1-t8] master.AssignmentManager: Server hor16n09.gq1.ygridcore.net,60020,1396270942046
returned org.apache.hadoop.hbase.ipc.RpcClient$FailedServerException: This server is in the
failed servers list: hor16n09.gq1.ygridcore.net/68.142.246.220:60020 for loadtest_d1,59999994,1396261861562.fcef8d691632e99948fbf876d24f907e.,
try=20 of 20
org.apache.hadoop.hbase.ipc.RpcClient$FailedServerException: This server is in the failed
servers list: hor16n09.gq1.ygridcore.net/68.142.246.220:60020
        at org.apache.hadoop.hbase.ipc.RpcClient$Connection.setupIOstreams(RpcClient.java:880)
        at org.apache.hadoop.hbase.ipc.RpcClient$Connection.writeRequest(RpcClient.java:1065)
        at org.apache.hadoop.hbase.ipc.RpcClient$Connection.tracedWriteRequest(RpcClient.java:1032)
        at org.apache.hadoop.hbase.ipc.RpcClient.call(RpcClient.java:1474)
        at org.apache.hadoop.hbase.ipc.RpcClient.callBlockingMethod(RpcClient.java:1684)
        at org.apache.hadoop.hbase.ipc.RpcClient$BlockingRpcChannelImplementation.callBlockingMethod(RpcClient.java:1737)
        at org.apache.hadoop.hbase.protobuf.generated.AdminProtos$AdminService$BlockingStub.closeRegion(AdminProtos.java:20854)
        at org.apache.hadoop.hbase.protobuf.ProtobufUtil.closeRegion(ProtobufUtil.java:1656)
        at org.apache.hadoop.hbase.master.ServerManager.sendRegionClose(ServerManager.java:693)
        at org.apache.hadoop.hbase.master.AssignmentManager.unassign(AssignmentManager.java:1685)
        at org.apache.hadoop.hbase.master.AssignmentManager.forceRegionStateToOffline(AssignmentManager.java:1786)
        at org.apache.hadoop.hbase.master.AssignmentManager.assign(AssignmentManager.java:1436)
        at org.apache.hadoop.hbase.master.AssignCallable.call(AssignCallable.java:45)
....
2014-03-31 13:39:10,056 WARN  [AM.-pool1-t8] master.RegionStates: Failed to open/close fcef8d691632e99948fbf876d24f907e
on hor16n09.gq1.ygridcore.net,60020,1396270942046, set to FAILED_CLOSE
2014-03-31 13:39:10,056 INFO  [AM.-pool1-t8] master.RegionStates: Transitioned {fcef8d691632e99948fbf876d24f907e
state=PENDING_OPEN, ts=1396273149814, server=hor16n09.gq1.ygridcore.net,60020,1396270942046}
to {fcef8d691632e99948fbf876d24f907e state=FAILED_CLOSE, ts=1396273150056, server=hor16n09.gq1.ygridcore.net,60020,1396270942046}
2014-03-31 13:39:10,056 INFO  [AM.-pool1-t8] master.AssignmentManager: Skip assigning {ENCODED
=> fcef8d691632e99948fbf876d24f907e, NAME => 'loadtest_d1,59999994,1396261861562.fcef8d691632e99948fbf876d24f907e.',
STARTKEY => '59999994', ENDKEY => '66666660'}, we couldn't close it: {fcef8d691632e99948fbf876d24f907e
state=FAILED_CLOSE, ts=1396273150056, server=hor16n09.gq1.ygridcore.net,60020,1396270942046}
{noformat}



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