Sure, it is.
Thanks, Ivan Blinkov -----Original Message----- From: "Billy Pearson" <[EMAIL PROTECTED]> To: [email protected] 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" <[EMAIL PROTECTED]> wrote in message > news:[EMAIL PROTECTED] > > 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 > > > >
