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https://issues.apache.org/jira/browse/HADOOP-2526?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12559217#action_12559217
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Jim Kellerman commented on HADOOP-2526:
---------------------------------------
Is this still an issue? Has it occurred since reported?
> HRegionServer hangs upon exit due to DFSClient Exception
> --------------------------------------------------------
>
> Key: HADOOP-2526
> URL: https://issues.apache.org/jira/browse/HADOOP-2526
> Project: Hadoop
> Issue Type: Bug
> Components: contrib/hbase
> Affects Versions: 0.15.0
> Environment: CentOS 5
> Reporter: Chris Kline
> Priority: Minor
>
> Several HRegionServers hang around indefinitely well after the HMaster has
> exited. This was triggered executing $HBASE_HOME/bin/stop-hbase.sh. The
> HMaster exists fine, but here is what happens on one of the HRegionServers:
> 2008-01-02 18:54:01,907 INFO org.apache.hadoop.hbase.HRegionServer: Got
> regionserver stop message
> 2008-01-02 18:54:01,907 INFO org.apache.hadoop.hbase.Leases:
> regionserver/0.0.0.0:60020 closing leases
> 2008-01-02 18:54:01,907 INFO org.apache.hadoop.hbase.Leases$LeaseMonitor:
> regionserver/0.0.0.0:60020.leaseChecker exiting
> 2008-01-02 18:54:01,908 INFO org.apache.hadoop.hbase.Leases:
> regionserver/0.0.0.0:60020 closed leases
> 2008-01-02 18:54:01,908 INFO org.apache.hadoop.ipc.Server: Stopping server on
> 60020
> 2008-01-02 18:54:01,908 INFO org.apache.hadoop.ipc.Server: IPC Server handler
> 2 on 60020: exiting
> 2008-01-02 18:54:01,908 INFO org.apache.hadoop.ipc.Server: IPC Server handler
> 0 on 60020: exiting
> 2008-01-02 18:54:01,908 INFO org.apache.hadoop.ipc.Server: IPC Server handler
> 7 on 60020: exiting
> 2008-01-02 18:54:01,908 INFO org.apache.hadoop.ipc.Server: IPC Server handler
> 3 on 60020: exiting
> 2008-01-02 18:54:01,908 INFO org.apache.hadoop.ipc.Server: IPC Server handler
> 5 on 60020: exiting
> 2008-01-02 18:54:01,908 INFO org.apache.hadoop.ipc.Server: IPC Server handler
> 9 on 60020: exiting
> 2008-01-02 18:54:01,908 INFO org.apache.hadoop.ipc.Server: IPC Server handler
> 6 on 60020: exiting
> 2008-01-02 18:54:01,908 INFO org.apache.hadoop.ipc.Server: IPC Server handler
> 4 on 60020: exiting
> 2008-01-02 18:54:01,908 INFO org.apache.hadoop.ipc.Server: IPC Server handler
> 1 on 60020: exiting
> 2008-01-02 18:54:01,909 INFO org.apache.hadoop.ipc.Server: Stopping IPC
> Server listener on 60020
> 2008-01-02 18:54:01,908 INFO org.apache.hadoop.ipc.Server: IPC Server handler
> 8 on 60020: exiting
> 2008-01-02 18:54:01,909 INFO org.apache.hadoop.hbase.HRegionServer: Stopping
> infoServer
> 2008-01-02 18:54:01,909 DEBUG org.mortbay.util.Container: Stopping [EMAIL
> PROTECTED]
> 2008-01-02 18:54:01,909 DEBUG org.mortbay.util.ThreadedServer: closing
> ServerSocket[addr=0.0.0.0/0.0.0.0,port=0,localport=60030]
> 2008-01-02 18:54:01,909 DEBUG org.mortbay.util.ThreadedServer: IGNORED
> java.net.SocketException: Socket closed
> at java.net.PlainSocketImpl.socketAccept(Native Method)
> at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:384)
> at java.net.ServerSocket.implAccept(ServerSocket.java:453)
> at java.net.ServerSocket.accept(ServerSocket.java:421)
> at
> org.mortbay.util.ThreadedServer.acceptSocket(ThreadedServer.java:432)
> at
> org.mortbay.util.ThreadedServer$Acceptor.run(ThreadedServer.java:631)
> 2008-01-02 18:54:01,910 INFO org.mortbay.util.ThreadedServer: Stopping
> Acceptor ServerSocket[addr=0.0.0.0/0.0.0.0,port=0,localport=60030]
> 2008-01-02 18:54:01,910 DEBUG org.mortbay.util.ThreadedServer: Self connect
> to close listener /127.0.0.1:60030
> 2008-01-02 18:54:01,911 DEBUG org.mortbay.util.ThreadedServer: problem
> stopping acceptor /127.0.0.1:
> 2008-01-02 18:54:01,911 DEBUG org.mortbay.util.ThreadedServer: problem
> stopping acceptor /127.0.0.1:
> java.net.ConnectException: Connection refused
> at java.net.PlainSocketImpl.socketConnect(Native Method)
> at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333)
> at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195)
> at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182)
> at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
> at java.net.Socket.connect(Socket.java:519)
> at java.net.Socket.connect(Socket.java:469)
> at java.net.Socket.<init>(Socket.java:366)
> at java.net.Socket.<init>(Socket.java:209)
> at
> org.mortbay.util.ThreadedServer$Acceptor.forceStop(ThreadedServer.java:682)
> at org.mortbay.util.ThreadedServer.stop(ThreadedServer.java:557)
> at org.mortbay.http.SocketListener.stop(SocketListener.java:211)
> at org.mortbay.http.HttpServer.doStop(HttpServer.java:781)
> at org.mortbay.util.Container.stop(Container.java:154)
> at org.apache.hadoop.hbase.util.InfoServer.stop(InfoServer.java:237)
> at org.apache.hadoop.hbase.HRegionServer.run(HRegionServer.java:835)
> at java.lang.Thread.run(Thread.java:619)
> 2008-01-02 18:54:01,911 INFO org.mortbay.http.SocketListener: Stopped
> SocketListener on 0.0.0.0:60030
> 2008-01-02 18:54:01,912 DEBUG org.mortbay.util.Container: Stopping
> HttpContext[/static,/static]
> 2008-01-02 18:54:01,912 DEBUG org.mortbay.http.handler.AbstractHttpHandler:
> Stopped org.mortbay.http.handler.ResourceHandler in
> HttpContext[/static,/static]
> 2008-01-02 18:54:02,039 INFO org.mortbay.util.Container: Stopped
> HttpContext[/static,/static]
> 2008-01-02 18:54:02,039 DEBUG org.mortbay.util.Container: Stopping
> HttpContext[/logs,/logs]
> 2008-01-02 18:54:02,039 DEBUG org.mortbay.http.handler.AbstractHttpHandler:
> Stopped org.mortbay.http.handler.ResourceHandler in HttpContext[/logs,/logs]
> 2008-01-02 18:54:02,154 INFO org.mortbay.util.Container: Stopped
> HttpContext[/logs,/logs]
> 2008-01-02 18:54:02,154 DEBUG org.mortbay.util.Container: Stopping
> WebApplicationContext[/,/]
> 2008-01-02 18:54:02,154 DEBUG org.mortbay.util.Container: Stopping [EMAIL
> PROTECTED]
> 2008-01-02 18:54:02,155 INFO org.mortbay.util.Container: Stopped [EMAIL
> PROTECTED]
> 2008-01-02 18:54:02,277 DEBUG
> org.mortbay.jetty.servlet.AbstractSessionManager: Session scavenger exited
> 2008-01-02 18:54:02,278 DEBUG org.mortbay.util.Container: remove component:
> [EMAIL PROTECTED]
> 2008-01-02 18:54:02,278 INFO org.mortbay.util.Container: Stopped
> WebApplicationContext[/,/]
> 2008-01-02 18:54:02,278 INFO org.mortbay.util.Container: Stopped [EMAIL
> PROTECTED]
> 2008-01-02 18:54:02,278 DEBUG org.apache.hadoop.hbase.HRegionServer: closing
> region spider_pages,10_131455761,1198140179439
> 2008-01-02 18:54:02,278 INFO org.apache.hadoop.hbase.HRegionServer:
> regionserver/0.0.0.0:60020.cacheFlusher exiting
> 2008-01-02 18:54:02,278 INFO org.apache.hadoop.hbase.HRegionServer:
> regionserver/0.0.0.0:60020.compactor exiting
> 2008-01-02 18:54:02,278 INFO org.apache.hadoop.hbase.HRegionServer:
> regionserver/0.0.0.0:60020.splitter exiting
> 2008-01-02 18:54:02,279 DEBUG org.apache.hadoop.hbase.HStore: closed
> spider_pages,10_131455761,1198140179439/search (1501227429/search)
> 2008-01-02 18:54:02,279 DEBUG org.apache.hadoop.hbase.HStore: closed
> spider_pages,10_131455761,1198140179439/profile (1501227429/profile)
> 2008-01-02 18:54:02,279 DEBUG org.apache.hadoop.hbase.HStore: closed
> spider_pages,10_131455761,1198140179439/meta (1501227429/meta)
> 2008-01-02 18:54:02,279 INFO org.apache.hadoop.hbase.HRegion: closed
> spider_pages,10_131455761,1198140179439
> 2008-01-02 18:54:02,279 DEBUG org.apache.hadoop.hbase.HRegionServer: closing
> region spider_pages,10_486594261,1198319654267
> 2008-01-02 18:54:02,280 DEBUG org.apache.hadoop.hbase.HStore: closed
> spider_pages,10_486594261,1198319654267/search (364081590/search)
> 2008-01-02 18:54:02,280 DEBUG org.apache.hadoop.hbase.HStore: closed
> spider_pages,10_486594261,1198319654267/profile (364081590/profile)
> 2008-01-02 18:54:02,280 DEBUG org.apache.hadoop.hbase.HStore: closed
> spider_pages,10_486594261,1198319654267/meta (364081590/meta)
> 2008-01-02 18:54:02,280 INFO org.apache.hadoop.hbase.HRegion: closed
> spider_pages,10_486594261,1198319654267
> ...
> ... this closing of regions goes on for a while
> ...
> ... the following continues until a kill -9
> ...
> 2008-01-02 20:39:20,552 INFO org.apache.hadoop.fs.DFSClient: Could not obtain
> block blk_5124700261538503923 from any node: java.io.IOException: No live
> nodes contain current block
> 2008-01-02 20:40:23,556 INFO org.apache.hadoop.fs.DFSClient: Could not obtain
> block blk_5124700261538503923 from any node: java.io.IOException: No live
> nodes contain current block
> 2008-01-02 20:41:26,560 INFO org.apache.hadoop.fs.DFSClient: Could not obtain
> block blk_5124700261538503923 from any node: java.io.IOException: No live
> nodes contain current block
> 2008-01-02 20:42:29,566 INFO org.apache.hadoop.fs.DFSClient: Could not obtain
> block blk_5124700261538503923 from any node: java.io.IOException: No live
> nodes contain current block
> 2008-01-02 20:43:32,571 INFO org.apache.hadoop.fs.DFSClient: Could not obtain
> block blk_5124700261538503923 from any node: java.io.IOException: No live
> nodes contain current block
> ...
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