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From "Keith Wall (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (QPID-7016) BDB JE cleaner can make no progress allowing for unbounded store growth
Date Fri, 22 Jan 2016 13:36:39 GMT

     [ https://issues.apache.org/jira/browse/QPID-7016?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Keith Wall updated QPID-7016:
-----------------------------
    Description: 
A user on a 0.32 derivative (including QPID-6734 and using BDB JE 5.0.104) encountered a problem
where the store continued to grow (3GB per hour) even though messages were not accumulating
within the Broker.

Analysis with the showed the the BDB JE cleaner was making no progress and in particular,
JE's getEnvironmentStats() revealed that lnSizeCorrectionFactor had fallen to 0.079.  On restarting
the Broker, the store size shrunk back to a normal size.  (Java Broker's Recovery evicted
no messages).

More details here:

https://community.oracle.com/message/13647939#13647939


  was:
A user on a 0.32 derivative (including QPID-6734) encountered a problem where the store continued
to grow (3GB per hour) even though messages were not accumulating within the Broker.

Analysis with the showed the the BDB JE cleaner was making no progress and in particular,
JE's getEnvironmentStats() revealed that lnSizeCorrectionFactor had fallen to 0.079.  On restarting
the Broker, the store size shrunk back to a normal size.  (Java Broker's Recovery evicted
no messages).

More details here:

https://community.oracle.com/message/13647939#13647939



> BDB JE cleaner can make no progress allowing for unbounded store growth
> -----------------------------------------------------------------------
>
>                 Key: QPID-7016
>                 URL: https://issues.apache.org/jira/browse/QPID-7016
>             Project: Qpid
>          Issue Type: Bug
>          Components: Java Broker
>            Reporter: Keith Wall
>            Priority: Critical
>
> A user on a 0.32 derivative (including QPID-6734 and using BDB JE 5.0.104) encountered
a problem where the store continued to grow (3GB per hour) even though messages were not accumulating
within the Broker.
> Analysis with the showed the the BDB JE cleaner was making no progress and in particular,
JE's getEnvironmentStats() revealed that lnSizeCorrectionFactor had fallen to 0.079.  On restarting
the Broker, the store size shrunk back to a normal size.  (Java Broker's Recovery evicted
no messages).
> More details here:
> https://community.oracle.com/message/13647939#13647939



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