activemq-commits mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Lionel Cons (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (APLO-176) What do "Detected store change" messages mean?
Date Thu, 29 Mar 2012 07:11:30 GMT

    [ https://issues.apache.org/jira/browse/APLO-176?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13241036#comment-13241036
] 

Lionel Cons commented on APLO-176:
----------------------------------

First of all, if these messages indicate a (potential) problem, please raise their priority
to WARN or ERROR.

We got these only on one broker, several times over a two weeks period. This broker is not
different from the others (FWIW it uses LevelDB) but we did run several stress tests on it.
I don't know if this can come from a corrupted store...

We will eventually install the latest snapshot and re-run our tests to see if we can reproduce
the problem.
                
> What do "Detected store change" messages mean?
> ----------------------------------------------
>
>                 Key: APLO-176
>                 URL: https://issues.apache.org/jira/browse/APLO-176
>             Project: ActiveMQ Apollo
>          Issue Type: Question
>         Environment: apollo-99-trunk-20120306.040517-2
>            Reporter: Lionel Cons
>             Fix For: 1.2
>
>
> On one of our brokers, we detected the following messages:
> 2012-03-27 17:17:33,678 | INFO  | Detected store change in range 622852159 to 622862157.
3869 message(s) and 617003 bytes | org.apache.activemq.apollo.broker.QueueEntry | hawtdispatch-DEFAULT-2
> 2012-03-27 17:18:26,337 | INFO  | Detected store change in range 623647284 to 623657282.
6355 message(s) and 947641 bytes | org.apache.activemq.apollo.broker.QueueEntry | hawtdispatch-DEFAULT-2
> 2012-03-27 17:19:41,528 | INFO  | Detected store change in range 624785258 to 624788515.
62 message(s) and 8246 bytes | org.apache.activemq.apollo.broker.QueueEntry | hawtdispatch-DEFAULT-5
> 2012-03-27 17:19:57,644 | INFO  | Detected store change in range 625016042 to 625022112.
62 message(s) and 8246 bytes | org.apache.activemq.apollo.broker.QueueEntry | hawtdispatch-DEFAULT-2
> 2012-03-27 17:19:58,280 | INFO  | Detected store change in range 625016863 to 625026923.
-62 message(s) and -8246 bytes | org.apache.activemq.apollo.broker.QueueEntry | hawtdispatch-DEFAULT-1
> 2012-03-27 17:21:05,636 | INFO  | Detected store change in range 626032257 to 626042255.
6543 message(s) and 1075071 bytes | org.apache.activemq.apollo.broker.QueueEntry | hawtdispatch-DEFAULT-3
> [...]
> Since they are marked as INFO I hope they are harmless (please confirm) but I would anyway
like to understand what they mean and why they are logged.

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira

        

Mime
View raw message