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[bioontology-support] Annotator returning 500 error when overloaded (Could Not Annotate with Mgrep Server)

Trish Whetzel whetzel at
Tue Feb 9 11:48:44 PST 2010

Thanks - is it the recommendation still to add the delay in calling the web
service, even with multiple clients? If so, I can pass that information back
to Joey. 


>-----Original Message-----
>From: Cherie H Youn [mailto:cyoun at]
>Sent: Tuesday, February 09, 2010 11:45 AM
>To: 'Trish Whetzel'
>Cc: support at
>Subject: RE: [bioontology-support] Annotator returning 500 error when
>overloaded (Could Not Annotate with Mgrep Server)
>Hi Trish,
>I will re-write the email for Joey and expose less details since my
>original response has very specific details regarding our architecture
>changes and my analysis.
>I will cc you and support group.
>-----Original Message-----
>From: Trish Whetzel [mailto:whetzel at]
>Sent: Tuesday, February 09, 2010 8:12 AM
>To: Cherie Youn
>Cc: support at
>Subject: Re: [bioontology-support] Annotator returning 500 error when
>overloaded (Could Not Annotate with Mgrep Server)
>Hi Cherie,
>Can you reply to Joey and cc the support list? I'm not sure if the
>recommendation is the same as yesterday's internal email thread, ie to
>include a delay between calls since this email mentions use of
>multiple clients.
>On Feb 9, 2010, at 7:28 AM, Joey Geiger wrote:
>> Hello.
>> I'm running some tests on the annotator, and I'm running into issues
>> when trying to annotate some text using multiple client daemons at
>> one time. Everything works for about 100-200 items, but then the
>> system begins throwing errors. I've included the text of the error
>> below.
>> <?xml version="1.0" encoding="UTF-8"?>
>> <errorStatus>
>>  <accessedResource>/obs_hibernate/annotator</accessedResource>
>>  <accessDate>2010-02-09 07:23:35.929 PST</accessDate>
>>  <shortMessage>Internal Server Error</shortMessage>
>>  <longMessage>Error. Could Not Annotate with Mgrep Server.</
>> longMessage>
>>  <errorCode>500</errorCode>
>> </errorStatus>
>> I'm not sure of the cause, but I know that I've previously been able
>> to hit the system a lot harder. Right now I'm using 5 clients, and
>> I've done multiple tests previously with 10-25 clients at one time.
>> This was on the dev server as well.
>> Thank you.
>> _______________________________________________
>> bioontology-support mailing list
>> bioontology-support at

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