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https://issues.apache.org/jira/browse/HDFS-13576?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17233310#comment-17233310
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JiangHua Zhu commented on HDFS-13576:
-------------------------------------
This abnormality is normal. Related to the parameter
(dfs.namenode.fs-limits.max-component-length), the default value of this
parameter is 255. It represents the length of the name of the INode. Once it
exceeds this value, the above exception will be displayed.
> RBF: Add destination path length validation for add/update mount entry
> ----------------------------------------------------------------------
>
> Key: HDFS-13576
> URL: https://issues.apache.org/jira/browse/HDFS-13576
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Dibyendu Karmakar
> Assignee: Ayush Saxena
> Priority: Minor
>
> Currently there is no validation to check destination path length while
> adding or updating mount entry. But while trying to create directory using
> this mount entry
> {noformat}
> RemoteException(org.apache.hadoop.hdfs.protocol.FSLimitException$PathComponentTooLongException){noformat}
> is thrown with exception message as
> {noformat}
> "maximum path component name limit of ....<long path>... directory / is
> exceeded: limit=255 length=1817"{noformat}
>
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