Can you add logging to your tasks? Is it that hbase goes unavailable or is it that you are not pulling on the progessable w/i the ten minute timeout.
You are not trying to post 4G of data to a single cell (I know you are not but asking just in case). St.Ack On Thu, Mar 17, 2011 at 8:32 AM, jonh111 <[email protected]> wrote: > > Hi, > > I'm running jaql over a cluster of 6 machines. > > When i run my jobs on small data it runs smoothly. > > However, when i use larger data (~4G) the following occurs: > > I can see that alot of tasks which have been completed, go back to "pending" > state. > When this happens i get exceptions that look like: > > "Task attempt_201103161639_0002_m_000000_0 failed to report status for 607 > seconds. Killing!" > > Most of the time the cluster gets stuck ater a while , apperantly from > memory loss, and should be restarted. > > What can possibly be wrong? > Are there any parameters i should change? > > Thanks, > Jonathan > -- > View this message in context: > http://old.nabble.com/Task-failed-to-report-status-exceptions-tp31173622p31173622.html > Sent from the HBase User mailing list archive at Nabble.com. > >
