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Chukwa >> mail # user >> chukwa collector crashed because org.apache.hadoop.ipc.RemoteException

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Re: chukwa collector crashed because org.apache.hadoop.ipc.RemoteException
A little of both.

Looks like your Hadoop filesystem wasn't ready to accept writes;
that's what Namenode in safe mode is telling you. Perhaps due to
downed nodes?

However, Chukwa ought to wait, not crash. Do you have anything else in
the Chukwa logs you can show us?


On Mon, Apr 11, 2011 at 12:18 AM, Ying Tang <[EMAIL PROTECTED]> wrote:
> The log showed
> 2011-04-07 08:50:17,584 WARN LeaseChecker DFSClient - Problem renewing lease
> for DFSClient_-252461351
> org.apache.hadoop.ipc.RemoteException:
> org.apache.hadoop.hdfs.server.namenode.SafeModeException: Cannot renew lease
> for DFSClient_-252461351. Name node is in safe mode.
> The reported blocks 31049 needs additional 3088 blocks to reach the
> threshold 0.9990 of total blocks 34172. Safe mode will be turned off
> automatically.
> And the chukwa collector crashed.
> Is this problem caused by hadoop or chukwa ?
> --
> Best regards,
> Ivy Tang

UC Berkeley Computer Science Department