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Date: Sat, 2 Feb 2013 14:08:12 +0000 (UTC)
From: "Hiram Chirino (JIRA)" <jira@apache.org>
To: commits@activemq.apache.org
Message-ID: <JIRA.12626312.1357549607942.235059.1359814092563@arcas>
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Subject: [jira] [Commented] (APLO-284) Invalid log position warnings
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    [ https://issues.apache.org/jira/browse/APLO-284?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13569559#comment-13569559 ] 

Hiram Chirino commented on APLO-284:
------------------------------------

FYI: the  "waiting on: dispatch" message means that there is a message loaded in memory ready to be sent to the consumer and the consumer should be able to accept it.  Typically a message should not stay in that state very long, since when messages go into that state, they should trigger the 'dispatching' process which basically picks the best possible consumers for the given message, and actually sends it.

I'll try to setup a scenario like you described.  multiple producers sending to one topic with 2 durables subs each sub with just one consumer.  Are you using a default queue/topic configuration for that topic/dsub ?  About how big are the messages and what's the send frequency?  
                
> Invalid log position warnings
> -----------------------------
>
>                 Key: APLO-284
>                 URL: https://issues.apache.org/jira/browse/APLO-284
>             Project: ActiveMQ Apollo
>          Issue Type: Bug
>         Environment: apollo-99-trunk-20121221.031630-148
>            Reporter: Lionel Cons
>
> I don't know if this is related to APLO-176 but on a broker running apollo-99-trunk-20121221.031630-148 we see many (>1k) warnings like:
> 2013-01-07 10:02:55,941 | WARN  | Invalid log position: 122526748304 | 
> 2013-01-07 10:02:55,941 | WARN  | Invalid log position: 122526748923 | 
> 2013-01-07 10:02:55,942 | WARN  | Invalid log position: 122526750644 | 
> 2013-01-07 10:02:55,942 | WARN  | Invalid log position: 122526751727 | 
> 2013-01-07 10:02:55,942 | WARN  | Invalid log position: 122526752423 | 
> Does this indicate some kind of data store corruption?

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