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Release the thread efficiently without disrupting server

I am running R5.0.9a on an NT4 box. I have set up SSO for two servers and set the token to expire in 14 hours. We have 1500 users. Each time around 65 users are logged on the http server. The Idle Thread Timeout is set to 15 Minutes. Users are complaining slow login or couldn't login at all. It looks that there are not enough threads for everybody. Is there a way to release the thread efficiently and won't cause the server to abend?
This is tricky. We have servers using SSO and sometimes have as many as 800 to 1000 users signed on at a time. The thread problem is more likely a Webquerysave agent or image conversion problem. If you have an agent that is not exiting completely or images that are embedded in documents and translated for the Web, you will use threads quickly as the components hold the threads open. The image conversion component of Domino will not exit and will hold threads open when you have an image that does not convert correctly. It is best to attach images and reference the image via the $File reference. For best results limit Web images to 72 pixels per inch.

This was first published in March 2002

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