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From "Richard Lackey (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-6914) IPC Client Connection close does not protect against partially Connection objects
Date Thu, 12 Aug 2010 20:57:20 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-6914?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Richard Lackey updated HADOOP-6914:
-----------------------------------

    Status: Patch Available  (was: Open)

The fix is isolated to the close() method. It does not change the normal flow. It only affects
the RuntimeException flow.

> IPC Client Connection close does not protect against partially Connection objects
> ---------------------------------------------------------------------------------
>
>                 Key: HADOOP-6914
>                 URL: https://issues.apache.org/jira/browse/HADOOP-6914
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: ipc
>    Affects Versions: 0.20.0
>            Reporter: Richard Lackey
>         Attachments: hbase-2042.patch
>
>   Original Estimate: 0h
>  Remaining Estimate: 0h
>
> The purpose of this ticket is to cross-reference hbase-2042, opened 12/12/2009. close()
is used to release Connection resources. It is invoked even though the Connection object may
not have been completely initialized. For example, the file descriptor ulimit may have been
exceeded in which case no socket would have been acquired. The result would be an NPE in close.
The implied contract for close() seems to be that it will never fail. 
> There is a proposed patch in the hbase-2042 ticket.

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