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https://issues.apache.org/jira/browse/HDFS-10626?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15378755#comment-15378755
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Yiqun Lin commented on HDFS-10626:
----------------------------------
Thanks [~shahrs87] and [~yzhangal] for the review. Post the new patch for
addressing the comment.
The patch change the code form
{code}
LOG.warn("Cannot report bad " + block.getBlockId(), e);
{code}
to
{code}
LOG.warn("Cannot report bad " + block, ie);
{code}
It will print out the detail info of the bad block.
> VolumeScanner prints incorrect IOException in reportBadBlocks operation
> -----------------------------------------------------------------------
>
> Key: HDFS-10626
> URL: https://issues.apache.org/jira/browse/HDFS-10626
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: Yiqun Lin
> Assignee: Yiqun Lin
> Priority: Minor
> Labels: supportability
> Attachments: HDFS-10626.001.patch, HDFS-10626.002.patch
>
>
> VolumeScanner throws incorrect IOException in {{datanode.reportBadBlocks}}.
> The related codes:
> {code}
> public void handle(ExtendedBlock block, IOException e) {
> FsVolumeSpi volume = scanner.volume;
> ...
> try {
> scanner.datanode.reportBadBlocks(block, volume);
> } catch (IOException ie) {
> // This is bad, but not bad enough to shut down the scanner.
> LOG.warn("Cannot report bad " + block.getBlockId(), e);
> }
> }
> {code}
> The IOException that printed in the log should be {{ie}} rather than {{e}}
> which was passed in method {{handle(ExtendedBlock block, IOException e)}}.
> It will be a important info that can help us to know why datanode
> reporBadBlocks failed.
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