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https://issues.apache.org/jira/browse/HDFS-54?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13154138#comment-13154138
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Harsh J commented on HDFS-54:
-----------------------------
Although there is a check in BlockReceiver<init> now for disk errors upon IOE,
it seems to be limited to errors that only go like:
"Possible disk error on file creation:"
I guess this is hence still not covered today.
Should we get rid of this check, and simply issue disk error checks each time
we plainly hit an IOE? Other places do this directly, but perhaps for the
constructor here its too expensive to.
> datanode not failing when read-only filesystem
> ----------------------------------------------
>
> Key: HDFS-54
> URL: https://issues.apache.org/jira/browse/HDFS-54
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: Koji Noguchi
> Priority: Minor
>
> (This is not directly related to dfs -put hanging, but thought it should get
> fixed.)
> Datanode is catching IOException but not shutting itself down.
> 2008-02-02 00:10:24,237 ERROR org.apache.hadoop.dfs.DataNode: DataXceiver:
> java.io.IOException: Read-only file system
> at java.io.UnixFileSystem.createFileExclusively(Native Method)
> at java.io.File.createNewFile(File.java:883)
> at
> org.apache.hadoop.dfs.FSDataset$FSVolume.createTmpFile(FSDataset.java:329)
> at org.apache.hadoop.dfs.FSDataset.createTmpFile(FSDataset.java:606)
> at org.apache.hadoop.dfs.FSDataset.writeToBlock(FSDataset.java:582)
> at
> org.apache.hadoop.dfs.DataNode$BlockReceiver.<init>(DataNode.java:1257)
> at
> org.apache.hadoop.dfs.DataNode$DataXceiver.writeBlock(DataNode.java:901)
> at org.apache.hadoop.dfs.DataNode$DataXceiver.run(DataNode.java:804)
> at java.lang.Thread.run(Thread.java:619)
> 2008-02-02 00:16:29,996 INFO org.apache.hadoop.dfs.DataNode: Received block
> blk_-7723120264171092160 from /11.11.11.11
> 2008-02-02 00:41:40,409 INFO org.apache.hadoop.dfs.DataNode: Received block
> blk_1939877544554342517 from /22.22.22.22
> 2008-02-02 00:46:53,925 INFO org.apache.hadoop.dfs.DataNode: Received block
> blk_-4102605170938551016 from /33.33.33.33
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