Hey guys, Not sure if you are aware, but at the Evening with Engineers night at the WWRUG 2013, we were informed that there is a fix for cache corruption in the latest hotfix for MidTier 8.0 (not sure if it is solved for 8.1 or 7.6.04). This is the kind of corruption where fields/labels/etc. are in weird spots. I just downloaded it and will be testing/QA'ing in my environments soon.
Thanks! -Sharon From: Action Request System discussion list(ARSList) [mailto:[email protected]] On Behalf Of Jason Miller Sent: Friday, October 11, 2013 2:52 PM To: [email protected] Subject: Re: Another Mid-tier cache question ** The sync shouldn't have any affect on logging in. Even if the server isn't finished syncing yet the login process shouldn't care. If syncing was as hard on a system as a cache rebuild then I could see timeout issues occurring. You could probably tail the Mid Tier logs to see what is happening during a sync (depending on your logging settings). I have tailed the log when flushing cache but not syncing cache. The only way I know of seeing if a person is using MT or WUT is either 1) using workflow to capture it (in a record) or 2) watching access logs on the web server. I guess one other kind of goofy way is to tail the aruser.log. Since 7.6.04 or so when a user is using WUT there is a ton of logins recorded vs. when a user is using MT. If you see the same person logging in every few seconds then they are using WUT. On our environment where WUT is primarily used the aruser.log grows very rapidly. I choose always allow as well for pop-up blockers. Basically you want to trust any page MT is going to throw at you. It has been so long since I have read the message that I don't even remember what it say. Clicking the always allow happens from muscle memory at this point :) Jason On Fri, Oct 11, 2013 at 7:24 AM, Susan Palmer <[email protected]<mailto:[email protected]>> wrote: ** I tried sync cache last night and it seemed a bit faster but still took at least 10-15 min. I have noticed that after a sync I have issues logging back into mid-tier which I assume means the sync is not done. Is there a place to watch what it's doing? Different question: Can you see who is logged on via the mid-tier as opposed to client tool. License review just shows everyone. Different question: Pop-up blockers. A bit confusing, it says 'don't have pop-ups active, then later it say it wants pop-ups. I actually had misread the 'don't allow' message wrong initially and had chosen 'always allow' and didn't see any ill effects of that. Thanks, Susan On Fri, Oct 11, 2013 at 9:12 AM, Brittain, Mark <[email protected]<mailto:[email protected]>> wrote: ** Sync cache is disabled/grayed out so the only option I have is Flush Cache. ________________________________ From: Action Request System discussion list(ARSList) [[email protected]<mailto:[email protected]>] On Behalf Of Joe D'Souza [[email protected]<mailto:[email protected]>] Sent: Thursday, October 10, 2013 5:13 PM To: [email protected]<mailto:[email protected]> Subject: Re: Another Mid-tier cache question ** Like LJ said its best left off on production as your changes to Production if your company follows a proper change process is minimal. And you Sync the cache whenever there is a genuine change in the cache. Joe ________________________________ From: Action Request System discussion list(ARSList) [mailto:[email protected]<mailto:[email protected]>] On Behalf Of ravi rai Sent: Thursday, October 10, 2013 5:07 PM To: [email protected]<mailto:[email protected]> Subject: Re: Another Mid-tier cache question LJ, We do Quarterly releases.After each release we do manual flush Cache . Is is safe to turn this option off. It might resolve cache corruption issues which we encounter almost every alternate week Ravi ________________________________ Date: Thu, 10 Oct 2013 14:57:48 -0600 From: [email protected]<mailto:[email protected]> Subject: Re: Another Mid-tier cache question To: [email protected]<mailto:[email protected]> ** Mark, I agree with Joe....but look at it this way....this check box tells the Mid-Tier server to periodically check your Remedy server for definition changes. How often are definition changes made in your production server?....Weekly? Monthly? Quarterly? You likely don't need an automated 'check' to be turned on in production as it doesn't change very often...and when it does, you can manually hit the 'sync' button. Regarding the app server being behind a load balancer...no, that won't affect things because regardless of which app node the mid-tier gets the cache from, it should be 'correct' :) On Thu, Oct 10, 2013 at 2:45 PM, Joe D'Souza <[email protected]<mailto:[email protected]>> wrote: ** I won't pretend to answer this question for you - but this is my guess.. >From what it looks like, this functionality performs a periodic check on the >AR Server, to check for changes in definitions, and collects that information. >This will in my opinion have some impact on performance. So as long as that interval is relatively high, and set in such a way that it occurs in periodic cycles when users are usually not online, it should be fine. My guess is that when this box is checked and the interval is defined, there is probably a definition check that happens that instant, followed next by the interval that is defined. So if this is done lets say at 11:00 PM when most users are usually offline in that time zone, and the interval is set for 86400 for the next check to happen at 11:00 PM the next night, you might not have too much to worry about. I would however not be comfortable doing it every few minutes, as it MAY impact the performance of that particular mid-tier server in that load balanced configuration.. Cheers Joe ________________________________ From: Action Request System discussion list(ARSList) [mailto:[email protected]<mailto:[email protected]>] On Behalf Of Brittain, Mark Sent: Thursday, October 10, 2013 4:34 PM To: [email protected]<mailto:[email protected]> Subject: Another Mid-tier cache question Hi All, Is it safe to use Definition Change Check (Peform Check) with load balancers? When the dev and production ITSM servers were installed Perform Check was no selected. Don't know why it was done that way. Later when I applied a patch to the mid-tier servers, BMC Support said I should select Perform Check. I did this on the development server which has one ar server, one mid-tier and no load balancers, but did not select Perform Check on production which is a VIP > load balanced to two mid-tiers which are load balanced to two ars servers in a server group. Particularly with small changes I really like using change check/perform check on dev and would like to use on the production servers. Since I don't know why this was not originally set up that way I figured I would ask the group first. 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