On Mon, Mar 26, 2012 at 7:01 AM, Simon Gilliot <[email protected]> wrote: > Hello, > > we have a small architecture of 4 servers with 1 > Namenode/Jobtracker/HbaseMaster, 2 Datanode/Tasktracker, 1 server > Failover Namenode/Jobtracker. > We often Hbase crashes with this error: >
> 2012-03-26 15:15:11,043 WARN org.apache.hadoop.ipc.HBaseServer: > IPC Server handler 7 on 58237 caught: > java.nio.channels.ClosedChannelException That doesn't look like a crash. It looks like client was gone -- shut down the socket -- when we went to respond. Do you see a client timeout previous on client-side? If server is crashing, maybe later logs show why. St.Ack
