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Date: Thu, 3 May 2012 16:30:50 +0000 (UTC)
From: "Zhihong Yu (JIRA)" <jira@apache.org>
To: issues@hbase.apache.org
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Subject: [jira] [Commented] (HBASE-5883) Backup master is going down due to
 connection refused exception
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    [ https://issues.apache.org/jira/browse/HBASE-5883?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13267560#comment-13267560 ] 

Zhihong Yu commented on HBASE-5883:
-----------------------------------

Integrated to 0.94 and trunk.
                
> Backup master is going down due to connection refused exception
> ---------------------------------------------------------------
>
>                 Key: HBASE-5883
>                 URL: https://issues.apache.org/jira/browse/HBASE-5883
>             Project: HBase
>          Issue Type: Bug
>          Components: master
>    Affects Versions: 0.90.6, 0.92.1, 0.94.0
>            Reporter: Gopinathan A
>            Assignee: Jieshan Bean
>             Fix For: 0.96.0, 0.94.1
>
>         Attachments: HBASE-5883-90.patch, HBASE-5883-92.patch, HBASE-5883-94.patch, HBASE-5883-trunk.patch
>
>
> The active master node network was down for some time (This node contains Master,DN,ZK,RS). Here backup node got 
> notification, and started to became active. Immedietly backup node got aborted with the below exception.
> {noformat}
> 2012-04-09 10:42:24,270 INFO org.apache.hadoop.hbase.master.SplitLogManager: finished splitting (more than or equal to) 861248320 bytes in 4 log files in [hdfs://192.168.47.205:9000/hbase/.logs/HOST-192-168-47-202,60020,1333715537172-splitting] in 26374ms
> 2012-04-09 10:42:24,316 FATAL org.apache.hadoop.hbase.master.HMaster: Master server abort: loaded coprocessors are: []
> 2012-04-09 10:42:24,333 FATAL org.apache.hadoop.hbase.master.HMaster: Unhandled exception. Starting shutdown.
> java.io.IOException: java.net.ConnectException: Connection refused
> 	at org.apache.hadoop.hbase.ipc.HBaseClient$Connection.setupIOstreams(HBaseClient.java:375)
> 	at org.apache.hadoop.hbase.ipc.HBaseClient.getConnection(HBaseClient.java:1045)
> 	at org.apache.hadoop.hbase.ipc.HBaseClient.call(HBaseClient.java:897)
> 	at org.apache.hadoop.hbase.ipc.WritableRpcEngine$Invoker.invoke(WritableRpcEngine.java:150)
> 	at $Proxy13.getProtocolVersion(Unknown Source)
> 	at org.apache.hadoop.hbase.ipc.WritableRpcEngine.getProxy(WritableRpcEngine.java:183)
> 	at org.apache.hadoop.hbase.ipc.HBaseRPC.getProxy(HBaseRPC.java:303)
> 	at org.apache.hadoop.hbase.ipc.HBaseRPC.getProxy(HBaseRPC.java:280)
> 	at org.apache.hadoop.hbase.ipc.HBaseRPC.getProxy(HBaseRPC.java:332)
> 	at org.apache.hadoop.hbase.ipc.HBaseRPC.waitForProxy(HBaseRPC.java:236)
> 	at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.getHRegionConnection(HConnectionManager.java:1276)
> 	at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.getHRegionConnection(HConnectionManager.java:1233)
> 	at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.getHRegionConnection(HConnectionManager.java:1220)
> 	at org.apache.hadoop.hbase.catalog.CatalogTracker.getCachedConnection(CatalogTracker.java:569)
> 	at org.apache.hadoop.hbase.catalog.CatalogTracker.getRootServerConnection(CatalogTracker.java:369)
> 	at org.apache.hadoop.hbase.catalog.CatalogTracker.waitForRootServerConnection(CatalogTracker.java:353)
> 	at org.apache.hadoop.hbase.catalog.CatalogTracker.verifyRootRegionLocation(CatalogTracker.java:660)
> 	at org.apache.hadoop.hbase.master.HMaster.assignRootAndMeta(HMaster.java:616)
> 	at org.apache.hadoop.hbase.master.HMaster.finishInitialization(HMaster.java:540)
> 	at org.apache.hadoop.hbase.master.HMaster.run(HMaster.java:363)
> 	at java.lang.Thread.run(Thread.java:662)
> Caused by: java.net.ConnectException: Connection refused
> 	at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
> 	at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:567)
> 	at org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:206)
> 	at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:488)
> 	at org.apache.hadoop.hbase.ipc.HBaseClient$Connection.setupConnection(HBaseClient.java:328)
> 	at org.apache.hadoop.hbase.ipc.HBaseClient$Connection.setupIOstreams(HBaseClient.java:362)
> 	... 20 more
> 2012-04-09 10:42:24,336 INFO org.apache.hadoop.hbase.master.HMaster: Aborting
> 2012-04-09 10:42:24,336 DEBUG org.apache.hadoop.hbase.master.HMaster: Stopping service threads
> {noformat}

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