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https://issues.apache.org/jira/browse/HADOOP-7973?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Daryn Sharp updated HADOOP-7973:
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Attachment: HADOOP-7973-2.patch
There's opposition to disabling the cache, so here's an alternate approach to
the problem. I'm again only posting untested code for community comment.
Basically if the FS is cached, then it isn't closed until removed from the
cache. This allows the cache to remain enabled so {{FileSystem.closeAll}},
{{FileSystem.closeAllForUGI}}, etc continue to work as intended: boost
performance and not let objects leak. If caching is disabled, then the object
is immediately closed.
Please critique.
> DistributedFileSystem close has severe consequences
> ---------------------------------------------------
>
> Key: HADOOP-7973
> URL: https://issues.apache.org/jira/browse/HADOOP-7973
> Project: Hadoop Common
> Issue Type: Bug
> Components: fs
> Affects Versions: 1.0.0
> Reporter: Daryn Sharp
> Assignee: Daryn Sharp
> Priority: Blocker
> Attachments: HADOOP-7973-2.patch, HADOOP-7973.patch
>
>
> The way {{FileSystem#close}} works is very problematic. Since the
> {{FileSystems}} are cached, any {{close}} by any caller will cause problems
> for every other reference to it. Will add more detail in the comments.
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