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Posted to common-dev@hadoop.apache.org by "Christian Kunz (JIRA)" <ji...@apache.org> on 2008/10/24 21:19:44 UTC
[jira] Updated: (HADOOP-4517) unstable dfs when running jobs on
0.18.1
[ https://issues.apache.org/jira/browse/HADOOP-4517?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Christian Kunz updated HADOOP-4517:
-----------------------------------
Attachment: datanode.out
> unstable dfs when running jobs on 0.18.1
> ----------------------------------------
>
> Key: HADOOP-4517
> URL: https://issues.apache.org/jira/browse/HADOOP-4517
> Project: Hadoop Core
> Issue Type: Bug
> Components: dfs
> Affects Versions: 0.18.1
> Environment: hadoop-0.18.1 plus patches HADOOP-4277 HADOOP-4271 HADOOP-4326 HADOOP-4314 HADOOP-3914 HADOOP-4318 HADOOP-4351 HADOOP-4395
> Reporter: Christian Kunz
> Attachments: datanode.out
>
>
> 2 attempts of a job using 6000 maps, 19000 reduces
> 1.st attempt: failed during reduce phase after 22 hours with 31 dead datanodes most of which became unresponsive due to an exception; dfs lost blocks
> 2nd attempt: failed during map phase after 5 hours with 5 dead datanodes due to exception; dfs lost blocks responsible for job failure.
> I will post typical datanode exception and attach thread dump.
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