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From "Sergei Sokolov (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (AMQ-3758) Recover scheduler database option
Date Tue, 06 Mar 2012 14:20:57 GMT
Recover scheduler database option
---------------------------------

                 Key: AMQ-3758
                 URL: https://issues.apache.org/jira/browse/AMQ-3758
             Project: ActiveMQ
          Issue Type: Improvement
          Components: Message Store
    Affects Versions: 5.5.0
            Reporter: Sergei Sokolov


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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