Our non-ITSM production MT is set to check every 60 minutes. That environment tends to have more changes done since it is a custom environment. The MT useage is lightish on this system since most people are still using WUT with this environment.
Our ITSM 8 system is set to check every 10 hours. There are times we'll implement a minor change that is so minor or infrequently used functionality that I'll let the cache update on it own. This mentality is really from before Sync Cache was available when we didn't want to affect users by flushing cache. Jason On Thu, Oct 10, 2013 at 1:57 PM, LJ LongWing <[email protected]> wrote: > ** > 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]> 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]] *On Behalf Of *Brittain, Mark >> *Sent:* Thursday, October 10, 2013 4:34 PM >> *To:* [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.**** >> >> **** >> >> ARS 7.6.06 SP3**** >> >> Mid-Tier 7.6.06 SP4**** >> >> **** >> >> Thanks**** >> >> Mark**** >> _ARSlist: "Where the Answers Are" and have been for 20 years_ _ARSlist: >> "Where the Answers Are" and have been for 20 years_ > > > _ARSlist: "Where the Answers Are" and have been for 20 years_ > _______________________________________________________________________________ UNSUBSCRIBE or access ARSlist Archives at www.arslist.org "Where the Answers Are, and have been for 20 years"
