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https://issues.apache.org/jira/browse/HIVE-1322?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Work on HIVE-1322 started by Paul Yang.
> Cached FileSystem can lead to persistant IOExceptions
> -----------------------------------------------------
>
> Key: HIVE-1322
> URL: https://issues.apache.org/jira/browse/HIVE-1322
> Project: Hadoop Hive
> Issue Type: Bug
> Components: Metastore
> Reporter: Paul Yang
> Assignee: Paul Yang
> Priority: Minor
> Fix For: 0.6.0
>
> Attachments: HIVE-1322.1.patch, HIVE-1322.2.patch
>
>
> In the metastore, the FileSystem object is created through
> Path.getFileSytem(), which caches the created instance for performance. For
> DFS, the cached FileSystem seems to retain the original IP (resolved from the
> supplied hostname). If the hostname->IP mapping changes, then FS operations
> will throw IOExceptions. Because the FileSystem is cached, re-creating the
> object has no effect and will continue to result in IOExceptions.
> One solution is to call close on an IOException. That will remove the entry
> in the cache.
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