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
