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From "Kim van der Riet (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (QPID-5388) Linearstore: Segmentation fault when recovering empty queue
Date Wed, 04 Dec 2013 22:10:35 GMT

     [ https://issues.apache.org/jira/browse/QPID-5388?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Kim van der Riet resolved QPID-5388.
------------------------------------

    Resolution: Fixed

Fixed in r.1547921.

When a queue is first created, the first journal file is placed into the queue directory uninitialized
(ie the file header does not contain key information). When the first record is written, the
journal header is initialized, since it must reflect the first record's rid.

The RecoveryManager was unable to handle uninitialized journal files. The fix now allows RecoveryManager
to use the uninitialized file in place and allow it to be initialized when the first record
is written.

The reproducer described above now works as expected.

> Linearstore: Segmentation fault when recovering empty queue
> -----------------------------------------------------------
>
>                 Key: QPID-5388
>                 URL: https://issues.apache.org/jira/browse/QPID-5388
>             Project: Qpid
>          Issue Type: Bug
>            Reporter: Kim van der Riet
>            Assignee: Kim van der Riet
>
> When linear store recovers an empty queue, it crashes with a segmentation fault.
> Steps to reproduce:
> 1. Start broke with linearstore loaded.
> 2. Create a queue:
> {color:blue}{noformat}drain "q;{create:always,node:{type:queue,durable:true}}"{noformat}{color}
> 3. Stop the broker
> 4. Restart the broker, allowing the store to recover the queue "q".
> The broker crashes with the following message:
> {noformat}warning Linear Store: Journal 'q":Journal file /home/wherever/qls/jrnl/q/e8c9cfce-2dfd-400e-a229-5d8b4e5cd5ea.jrnl
belongs to queue "": ignoring{noformat}



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