[jira] [Updated] (QPID-3447) Creating invalid federation link causes file descriptor leak

["Pavel Moravec (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/QPID-3447?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Pavel Moravec updated QPID-3447:
--------------------------------

    Attachment: fd_leak.patch

Patch proposal.

The root cause of the FD leak is missing Socket::close() method when ::connect method returns negative (i.e. connection fails).

Patch adds the close method invocation plus logs the failure via QPID_LOG.

> Creating invalid federation link causes file descriptor leak
> ------------------------------------------------------------
>
>                 Key: QPID-3447
>                 URL: https://issues.apache.org/jira/browse/QPID-3447
>             Project: Qpid
>          Issue Type: Bug
>          Components: C++ Broker
>    Affects Versions: 0.10
>            Reporter: Pavel Moravec
>              Labels: patch
>         Attachments: fd_leak.patch
>
>   Original Estimate: 2h
>  Remaining Estimate: 2h
>
> Specifying invalid IP address of destination broker causes repeatable file
> descriptor leak.
> Steps to Reproduce:
> 1. qpid-route -v link add localhost 10:17700
> (alternativelly, create a dynamic route like    qpid-route dynamic add localhost 10:17700 amq.direct )
> 2. lsof -p $(pgrep qpidd) | grep "can't identify protocol"
> Since then, lsof will show "can't identify protocol" file descriptors whose number is increasing in time.

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