Do you have development cache mode enabled? If so, it handles caching differently. With this enabled it will block all users until the change is complete. Its ideal for development environments because the changes happen faster. With this disabled, it creates a copy of the cache and only replaces it once all active API calls have completed so that users aren't impacted.
Look in ar.cfg for the "Cache-Mode:" tag. If its set to "1", then you're in development mode and that's your problem. If its set to "0", or if its not present in your ar.cfg at all, then you're in production mode and your root cause is still a mystery. There was also a 6.3 bug (although I think it was prior to patch 20) that caused users to lock up during a group recache. Although it may have been specific to dynamic group updates only. I can't remember exactly. Chad Hall (501) 342-2650 ________________________________ From: Action Request System discussion list(ARSList) [mailto:[EMAIL PROTECTED] On Behalf Of Tony Worthington Sent: Thursday, October 23, 2008 12:36 PM To: [email protected] Subject: Re: User operations halt while group cache is performed We have the same behavior here. You can see the recache operations in arthread.log if you turn on thread logging and add the ar.conf setting Copy-Cache-Logging: T This is from a 7.1 system so I don't know if it applies to 6.x <THRD> /* Wed Oct 22 2008 15:29:17.5320 */ CopyCache Begin: rpcCallProc=41 user="Remedy Application Service" tid=2364 rpcId=2371423 <THRD> /* Wed Oct 22 2008 15:35:10.0060 */ CopyCache End Because of this we only perform group additions, deletions and modifications off-hours. Tony Worthington Sr. Technical Analyst Kohl's Department Stores N56 W17000 Ridgewood Drive Menomonee Falls, WI 53051 262.703.5911 (phone) [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]> www.Kohls.com <http://www.kohls.com/> Robert Halstead <[EMAIL PROTECTED]> Sent by: "Action Request System discussion list(ARSList)" <[email protected]> 10/23/2008 11:40 AM Please respond to [email protected] To [email protected] cc Subject User operations halt while group cache is performed ** Hi guys, Hope you all are having a great day. I have an slight issue and some questions that I hope someone could help shed some light on before I take this to BMC support. Recently, we did some group changes via the group form which caused a group-cache update to be performed on the servers. During this time, the CPU of our first server jumped to 90% and sustained that for at least 3-4 minutes. During this time no user could operate in Remedy at all. All other operations came to a screeching halt while this was being done. Is this the norm for a group-cache update? I thought I read in the docs that when a group-cache update occurs, only the admin thread is used and should not affect other list and fast threads from using the system. There will be some performance impact, but no where does it state the system will come to a halt when it's performed. We have also seen this same behavior when modifying a piece of workflow. Though I can understand this happening when we modify workflow to some point as the server needs to recache workflow objects. The thing is, my coworker has worked on other Remedy projects with other companies and hasn't seen this behavior at all. On our most loaded days we only have 170 people accessing remedy. Is this a configuration issue? Has anyone else seen this behavior? My servers are as follows: 2x Sun Fire v480R 1.2 Ghz 4GB RAM Sun Solaris 9 SPARC AR System 6.3 patch 20 server group Database Server: SunFire v210 1.3Ghz 8GB RAM Sun Solaris 9 SPARC Oracle 9i -- "A fool acts, regardless; knowing well that he is wrong. The ignoramus acts on only what he knows, but all that he knows. The ignoramus may be saved, but the fool knows that he is doomed." Bob Halstead __Platinum Sponsor: www.rmsportal.com ARSlist: "Where the Answers Are" html___ ________________________________ CONFIDENTIALITY NOTICE: This is a transmission from Kohl's Department Stores, Inc. and may contain information which is confidential and proprietary. If you are not the addressee, any disclosure, copying or distribution or use of the contents of this message is expressly prohibited. If you have received this transmission in error, please destroy it and notify us immediately at 262-703-7000. CAUTION: Internet and e-mail communications are Kohl's property and Kohl's reserves the right to retrieve and read any message created, sent and received. 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