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https://issues.apache.org/jira/browse/CONNECTORS-590?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13620733#comment-13620733
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Karl Wright commented on CONNECTORS-590:
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The hint is that this seems to be related to output connector errors in some
way. So there may be a pathway through WorkerThread that is incorrect; the
document's state is getting changed twice. I haven't been able to find any
such pathway yet, but this is a far more reassuring explanation than a database
consistency error.
> ManifoldCF sometimes throws an unexpected state exception under MySQL
> ---------------------------------------------------------------------
>
> Key: CONNECTORS-590
> URL: https://issues.apache.org/jira/browse/CONNECTORS-590
> Project: ManifoldCF
> Issue Type: Bug
> Components: Framework core
> Affects Versions: ManifoldCF 1.0.1, ManifoldCF 1.1
> Environment: MySQL 5.5.28, for Linux (x86_64), ManifoldCF 1.1-dev
> Reporter: Karl Wright
> Assignee: Karl Wright
> Fix For: ManifoldCF 1.2
>
>
> The following exception occurred under this setup:
> {code}
> 2012/12/21 10:09:37 ERROR (Worker thread '78') - Exception tossed: Unexpected
> jobqueue status - record id 1356045273314, expecting active status, saw 0
> org.apache.manifoldcf.core.interfaces.ManifoldCFException: Unexpected
> jobqueue status - record id 1356045273314, expecting active status, saw 0
> at
> org.apache.manifoldcf.crawler.jobs.JobQueue.updateCompletedRecord(JobQueue.java:742)
> at
> org.apache.manifoldcf.crawler.jobs.JobManager.markDocumentCompletedMultiple(JobManager.java:2438)
> at
> org.apache.manifoldcf.crawler.system.WorkerThread.run(WorkerThread.java:765)
> {code}
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