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From "Gary Tully (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (AMQ-3758) Recover scheduler database option
Date Wed, 28 Aug 2013 14:06:52 GMT

    [ https://issues.apache.org/jira/browse/AMQ-3758?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13752416#comment-13752416
] 

Gary Tully commented on AMQ-3758:
---------------------------------

if kahadb could implement the scheduler store interface we would be in business
                
> Recover scheduler database option
> ---------------------------------
>
>                 Key: AMQ-3758
>                 URL: https://issues.apache.org/jira/browse/AMQ-3758
>             Project: ActiveMQ
>          Issue Type: New Feature
>          Components: Message Store
>    Affects Versions: 5.5.0
>            Reporter: Sergei Sokolov
>              Labels: scheduler
>             Fix For: 5.9.0
>
>
> I am not sure why, but Scheduler database got corrupted, and some messages couldn't be
delivered to a broker. I got many exceptions similar to:
> {code}
> 2012-03-02 03:26:08,234 | ERROR | JMS Failed to schedule job | org.apache.activemq.broker.scheduler.JobSchedulerImpl
| JobScheduler:JMS 
> java.io.IOException: Could not locate data file <correct-file-path>\db-2.log 
>         at org.apache.kahadb.journal.Journal.getDataFile(Journal.java:350) 
>         at org.apache.kahadb.journal.Journal.read(Journal.java:597) 
>         at org.apache.activemq.broker.scheduler.JobSchedulerStore.getPayload(JobSchedulerStore.java:315)

>         at org.apache.activemq.broker.scheduler.JobSchedulerImpl.fireJob(JobSchedulerImpl.java:421)

>         at org.apache.activemq.broker.scheduler.JobSchedulerImpl.mainLoop(JobSchedulerImpl.java:473)

>         at org.apache.activemq.broker.scheduler.JobSchedulerImpl.run(JobSchedulerImpl.java:429)

>         at java.lang.Thread.run(Unknown Source) 
> {code}
> The problem is that there is no way to restore the database like you can if you are working
with the main ActiveMQ database. You can fix the main database by specifying the following
configuration:
> {code}
> <persistenceAdapter>  
>             <kahaDB directory="${activemq.base}/data/kahadb" 
>                     ignoreMissingJournalfiles="true" 
>                     checkForCorruptJournalFiles="true" 
>                     checksumJournalFiles="true" />  
> </persistenceAdapter>
> {code}
> It would be nice to have the same feature for the scheduler database.

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