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[bioontology-support] OBA performance problems

Alex Skrenchuk alex.skrenchuk at
Fri Mar 5 11:48:41 PST 2010

Dear Joey

We are getting hit pretty hard at the moment and we might not be able to
gracefully handle traffic from additional 10 workers.  Please try with
lesser number for now.

It would also be helpful if you pass in your email address in the request
so that I can trace your requests easier:
/obs/annotator?email=youraddy at edu


-----Original Message-----
From: Trish Whetzel [mailto:whetzel at] 
Sent: Friday, March 05, 2010 10:43 AM
To: Joey Geiger; Alex Skrenchuk
Cc: Cherie H Youn; Simon Twigger; support at
Subject: Re: OBA performance problems

Hi Joey,

I have included Alex, our sysadmin, who can also help take a look at  


On Mar 5, 2010, at 10:00 AM, Joey Geiger wrote:

> Hello,
> I've made some changes to the system I'm using to process the  
> annotation requests and after trying to run it at scale I'm running  
> into severe timeout issues. There are only ~10 workers hitting the  
> site and after a small amount of time I'm hitting the timeouts again.
> If you want to check the server logs I started running the test  
> about 90 minutes ago (10:30am CST) and it's still going, although  
> extremely slow. Some requests are taking over 30 seconds to return  
> while others don't return at all. As of right now (12pm CST) I don't  
> believe any of the requests are processing.
> If I go to the manual site and put in a request, it does return  
> something so I'm wondering if we're being throttled or blocked based  
> on a large number of requests.
> Thanks.

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