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Posted to common-dev@hadoop.apache.org by "Doug Cutting (JIRA)" <ji...@apache.org> on 2006/04/13 19:46:00 UTC
[jira] Resolved: (HADOOP-128) Failure to replicate dfs block kills
client
[ http://issues.apache.org/jira/browse/HADOOP-128?page=all ]
Doug Cutting resolved HADOOP-128:
---------------------------------
Fix Version: 0.2
Resolution: Fixed
I just committed this.
I note that you increased the timeout in the client, presumably to account for timeouts down the replication chain. But shouldn't we then also increase the timeout in the datanode when it connects to the next link in the chain? It didn't look like you added that.
+1 for refactoring this (in another patch). The logic of this is hard to follow!
> Failure to replicate dfs block kills client
> -------------------------------------------
>
> Key: HADOOP-128
> URL: http://issues.apache.org/jira/browse/HADOOP-128
> Project: Hadoop
> Type: Bug
> Components: dfs
> Versions: 0.1.1
> Environment: ~200 node linux cluster (kernel 2.6, redhat, 2 hyper threaded cpus)
> Reporter: Owen O'Malley
> Assignee: Owen O'Malley
> Fix For: 0.2
> Attachments: conf.patch, datanode-mirroring.patch, datanode.no-ws-diff
>
> When the datanode gets an exception, which is logged as:
> 060407 155835 13 DataXCeiver
> java.io.EOFException
> at java.io.DataInputStream.readFully(DataInputStream.java:178)
> at java.io.DataInputStream.readLong(DataInputStream.java:380)
> at org.apache.hadoop.dfs.DataNode$DataXceiver.run(DataNode.java:462)
> at java.lang.Thread.run(Thread.java:595)
> It closes the user's connection to the data node, which causes the client to get an IOException from:
> at java.io.DataInputStream.readFully(DataInputStream.java:178)
> at java.io.DataInputStream.readLong(DataInputStream.java:380)
> at org.apache.hadoop.dfs.DFSClient$DFSOutputStream.internalClose(DFSClient.java:883)
>
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