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From "Bryan Duxbury (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HBASE-10) HRegionServer hangs upon exit due to DFSClient Exception
Date Thu, 17 Apr 2008 23:33:21 GMT

    [ https://issues.apache.org/jira/browse/HBASE-10?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12590240#action_12590240
] 

Bryan Duxbury commented on HBASE-10:
------------------------------------

We could use a comment in Flusher explaining why we need the removeFromQueue option in flushRegion.
Otherwise, tests pass, +1.

> HRegionServer hangs upon exit due to DFSClient Exception
> --------------------------------------------------------
>
>                 Key: HBASE-10
>                 URL: https://issues.apache.org/jira/browse/HBASE-10
>             Project: Hadoop HBase
>          Issue Type: Bug
>          Components: regionserver
>         Environment: CentOS 5
>            Reporter: Chris Kline
>            Assignee: Jim Kellerman
>            Priority: Minor
>             Fix For: 0.2.0
>
>         Attachments: patch.txt
>
>
> 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 org.mortbay.jetty.Server@62c09554
> 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 org.mortbay.jetty.servlet.WebApplicationHandler@7ec5495e
> 2008-01-02 18:54:02,155 INFO org.mortbay.util.Container: Stopped org.mortbay.jetty.servlet.WebApplicationHandler@7ec5495e
> 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: org.mortbay.jetty.servlet.WebApplicationHandler@7ec5495e
> 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 org.mortbay.jetty.Server@62c09554
> 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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