[ http://issues.apache.org/jira/browse/HADOOP-159?page=all ]
Doug Cutting updated HADOOP-159:
--------------------------------
Fix Version: 0.3
(was: 0.2)
> name node at 100% cpu, making redundant replications
> ----------------------------------------------------
>
> Key: HADOOP-159
> URL: http://issues.apache.org/jira/browse/HADOOP-159
> Project: Hadoop
> Type: Bug
> Components: dfs
> Versions: 0.1.1
> Reporter: Yoram Arnon
> Assignee: Sameer Paranjpye
> Priority: Blocker
> Fix For: 0.3
>
> some hours after adding some new nodes to the cluster, the name node went
> into a state where it's consuming 100% cpu.
> The log file keeps logging messages of the forms
> 060421 155049 Obsoleting block blk_8093115169359854355
> 060421 155049 Pending transfer (block blk_-6965677235456960523) from
> node1383:50010 to 2 destinations
> 060421 155049 Block report from node1283:50010: 2140 blocks.
> 060421 155049 Redundant addStoredBlock request received for block
> blk_-6836937139917042917 on node node1143:50010
> many DFS operations time out, making useful work impossible.
> restarting dfs solved the problem for a while, but it came back within an
> hour.
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