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https://issues.apache.org/jira/browse/HADOOP-6283?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12763290#action_12763290
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dhruba borthakur commented on HADOOP-6283:
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+1. Code looks good.
> The exception meessage in FileUtil$HardLink.getLinkCount(..) is not clear
> -------------------------------------------------------------------------
>
> Key: HADOOP-6283
> URL: https://issues.apache.org/jira/browse/HADOOP-6283
> Project: Hadoop Common
> Issue Type: Bug
> Components: fs
> Reporter: Tsz Wo (Nicholas), SZE
> Priority: Minor
> Attachments: c6283_20090923.patch, c6283_20091007.patch
>
>
> When a file is not found, FileUtil$HardLink.getLinkCount(..) shows the
> following error message.
> {noformat}
> java.lang.NumberFormatException: For input string: ""
> at
> java.lang.NumberFormatException.forInputString(NumberFormatException.java:48)
> at java.lang.Integer.parseInt(Integer.java:470)
> at java.lang.Integer.parseInt(Integer.java:499)
> at
> org.apache.hadoop.fs.FileUtil$HardLink.getLinkCount(FileUtil.java:663)
> at
> org.apache.hadoop.hdfs.server.datanode.ReplicaInfo.detachBlock(ReplicaInfo.java:209)
> ...
> stat: cannot stat
> `/home/tsz/hadoop/hdfs/h265/build/test/data/dfs/data/data3/current/finalized/blk_-94418387820168072_1001.meta':
> No such file or directory on
> file:/home/tsz/hadoop/hdfs/h265/build/test/data/dfs/data/data3/current/finalized/blk_-94418387820168072_1001.meta
> {noformat}
> It looks like that there was a uncaught NumberFormatException.
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