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From Christian Hepworth <christian.hepwo...@york.ac.uk>
Subject Re: How to fix: Error: Unexpected jobqueue status
Date Wed, 03 Apr 2013 08:43:22 GMT
Hi Karl,

Yes, we are seeing this on PostgreSQL. It's never happened to us before, so
it's not a common issue.

We have been able to restart the job now, we couldn't yesterday. I will
have a look in the history for any messages that may be helpful and post
them back to you on here.

Thanks

Christian

On 3 April 2013 08:12, Karl Wright <daddywri@gmail.com> wrote:

> The reason I don't think this is the correct explanation is because the
> error itself indicates that two threads appear to be working on the same
> document at the same time.  That's not supposed to be possible, because
> there is only one thread that queues documents for processing, and there is
> only one thread it can hand the document to.  When the thread that is
> supposed to be handling the document finishes with it, it finds that some
> other thread has been there first and already updated the document's status
> in the database.
>
> See CONNECTORS-590 for more detail.
>
> My current theory is that this happens ONLY on MySQL - which is known to
> have transactional integrity bugs.  If you are seeing this on PostgreSQL, I
> would really want to know that.
>
> Thanks,
> Karl
>
>
>
> On Wed, Apr 3, 2013 at 3:02 AM, Karl Wright <daddywri@gmail.com> wrote:
>
>> So you believe this error occurs due to requeuing of documents when there
>> is an output connector error?  Can you provide some evidence for that?  I'd
>> love to resolve this problem but heretofore it has been so rare as to be
>> almost impossible to chase down.
>>
>> Karl
>>
>>
>>
>> On Wed, Apr 3, 2013 at 12:16 AM, <pankaj.pandey4@wipro.com> wrote:
>>
>>> Christian,
>>>
>>> We have also faced similar situation in the past. We figured out that
>>> this was happening because of some issue(maybe memory, not sure though)
>>> with "Output Connection"(Solr in our case ). Try reducing Throttling for
>>> the for output connection. For us, it's working fine if we set it to
>>> 2(default is 10) on DEV server.
>>>
>>> HTH.
>>>
>>> Pankaj
>>>
>>> -----Original Message-----
>>> From: Karl Wright [mailto:daddywri@gmail.com]
>>> Sent: Tuesday, April 02, 2013 9:45 PM
>>> To: user@manifoldcf.apache.org
>>> Subject: Re: How to fix: Error: Unexpected jobqueue status
>>>
>>> Hi Christian,
>>>
>>> This error should never occur.  If it does it likely indicates a problem
>>> with database transactional integrity.  What database are you using?  Would
>>> that be MySQL?
>>>
>>> Karl
>>>
>>> On Tue, Apr 2, 2013 at 11:05 AM, Christian Hepworth <
>>> christian.hepworth@york.ac.uk> wrote:
>>> > Hi there,
>>> >
>>> > We are experiencing the following error from Manifold CF.
>>> >
>>> > Error: Unexpected jobqueue status - record id 1363876634288, expecting
>>> > active status, saw 2
>>> >
>>> > How do we go about fixing this to allow our job to run again as normal?
>>> >
>>> > Thanks
>>>
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>>
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