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From Иван <...@mail.ru>
Subject Re[2]: Starting HBase from an old snapshot
Date Fri, 19 Sep 2008 12:55:00 GMT
Sure, it is.


Thanks,
Ivan Blinkov


-----Original Message-----
From: "Billy Pearson" <sales@pearsonwholesale.com>
To: hbase-user@hadoop.apache.org
Date: Thu, 18 Sep 2008 13:40:59 -0500
Subject: Re: Starting HBase from an old snapshot

> 
> Was the old directory made form the same version of hbase as the current one 
> you are trying to use?
> 
> Billy
> 
> "Иван" <m11@mail.ru> wrote in message 
> news:E1KgOB2-0007Or-00.m11-mail-ru@f161.mail.ru...
> > The situation is quite simple: I'm just trying to launch an HBase instance 
> > from a hbase directory in HDFS which was remaining inactive for a some 
> > period of time (in fact the HBase was just running from a different 
> > directory on the same HDFS, it was something like a backup). But for some 
> > reasons there has been some problems in launching it, which resulted in 
> > some exceptions, mostly like this:
> >
> > 2008-09-18 12:35:53,995 INFO org.apache.hadoop.ipc.Server: IPC Server 
> > handler 2 on 60020 caught: java.nio.channels.ClosedChannelException
> >        at 
> > sun.nio.ch.SocketChannelImpl.ensureWriteOpen(SocketChannelImpl.java:125)
> >        at sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:294)
> >        at 
> > org.apache.hadoop.ipc.Server$Responder.processResponse(Server.java:594)
> >        at 
> > org.apache.hadoop.ipc.Server$Responder.doRespond(Server.java:654)
> >        at org.apache.hadoop.ipc.Server$Handler.run(Server.java:917)
> >
> > and this:
> >
> > 2008-09-18 12:53:35,097 WARN 
> > org.apache.hadoop.hbase.regionserver.HRegionServer: Processing message 
> > (Retry: 1)
> > java.net.SocketTimeoutException: timed out waiting for rpc response
> >        at org.apache.hadoop.ipc.Client.call(Client.java:559)
> >        at 
> > org.apache.hadoop.hbase.ipc.HbaseRPC$Invoker.invoke(HbaseRPC.java:230)
> >        at $Proxy0.regionServerReport(Unknown Source)
> >        at 
> > org.apache.hadoop.hbase.regionserver.HRegionServer.run(HRegionServer.java:314)
> >        at java.lang.Thread.run(Thread.java:595)
> >
> > The snapshot was made while cleanly stopping of HBase and copying (or 
> > maybe moving, I'm not really sure) it's folder to another location in DFS.
> > Even web interface of HBase have failed to launch, but it seems that that 
> > HBase is doing something when it tries to launch: assigning some regions, 
> > creating/removing some blocks in HDFS, etc. But finally it fails...
> >
> > Does anyone have any ideas about the reasons of such a behavior?
> >
> > P.S.: Hadoop 0.17.1, HBase 0.2.0, Debian Etch
> >
> > Thanks,
> > Ivan Blinkov
> > 
> 
> 


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