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MapReduce >> mail # user >> Reduce tasks timeouts


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Re: Reduce tasks timeouts
Can you put here the output logs of your NN and DN servers?
Regards

2011/11/28 Radim Kolar <[EMAIL PROTECTED]>:
> I have problem with reduce tasks ending like this:
> Task attempt_201111250441_0009_r_000001_1 failed to report status for 602
> seconds. Killing!
>
> Every reduce tasks running on particular block ends like this.
>
> can it be caused that list for one key is too long or because processing of
> one list item takes too long?
>
>

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Marcos Luis Ortíz Valmaseda
 Linux Infrastructure Engineer
 Linux User # 418229
 http://marcosluis2186.posterous.com
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NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB