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https://issues.apache.org/jira/browse/HADOOP-7973?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13189648#comment-13189648
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Jitendra Nath Pandey commented on HADOOP-7973:
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bq. Unbalanced opens & closes would lead to situations where a close, that
formerly caused all fs streams to close, would be deferred into the future (if
ever).
It is a very common usage pattern that filesystem objects are not closed at
all, therefore it should be ok to have less number of closes than opens, with
reference count.
> 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-7973-3.patch,
> HADOOP-7973-4.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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