I seem to recall an issue in 7.5 where RAC would not play nicely with Server Groups. It was a while ago, so I don't remember the details. Sorry. :-/
Rick On Fri, Oct 14, 2011 at 2:03 PM, Chowdhury, Tauf <tauf.chowdh...@frx.com>wrote: > ** > Yeah, from my understanding, the way RAC works is similar to load > balancing. > You connect to a virtual SID like "Remedy-RAC" > Then, based on some magical parameters, your individual DB connections get > spread out amongst the nodes like Node1, Node2, Node3 etc... > Now, could there be an issue with the Nodes themselves having replication > issues? Maybe... I guess a good test would be to do some SQL queries > directly against the nodes after determining which one of your servers are > connecting to which node. > That is the troubleshooting route we may take but it's late on a Friday and > there's a slim chance I'll find any DBA help now. > > ------------------------------ > *From:* Action Request System discussion list(ARSList) on behalf of LJ > LongWing > *Sent:* Fri 10/14/2011 3:34 PM > *To:* arslist@ARSLIST.ORG > *Subject:* Re: Oracle-RAC and ARS Issues? > > ** > > JD, > > While I have never seen these symptoms, I agree with you that it appears, > somehow to be related with the communication method between your remedy > server and your DB. As I understand the RAC, it’s a Clustering software, > and if not performing properly, I could totally see problems with restarting > and the node you were on is not the one you re-connected to. One > troubleshooting step you could take would be to shut down all of the nodes > of the cluster except one….work with it for awhile…then shutdown and restart > to see if you have problems….I know it’s a bit extreme…and may not be > feasible to your situation, but it’s something I would put on my list of ‘to > try’ J > > > > *From:* Action Request System discussion list(ARSList) [mailto: > arslist@ARSLIST.ORG] *On Behalf Of *JD Hood > *Sent:* Friday, October 14, 2011 1:13 PM > *To:* arslist@ARSLIST.ORG > *Subject:* Oracle-RAC and ARS Issues? > > > > ** Having a really weird issue at a client where, when you restart the AR > Server service (not every time, but at random nth restarts)... > > - Random forms fail to load in the server (won't list in client & won't > list in the Admin tool, but T,H,B tables are still there with data) > > - Random fields vanish on forms > > - All guides (filter & active link) fail to load > > - could be some other probs, but we didn't look as we have our hands full > dealing with the first three > > > > The first time this occurred, we found that the numfields value in ARSCHEMA > table did not agree with the rowcount in the FIELD table for some CMDB forms > (AST: forms). The problem has occurred three times over as many weeks and > restoring the DB from backup each time it happens is not feasible as along > term resolution -- we need to figure out the root cause. The site is secure > and sharing logs, screenshots or webexing is not allowed, so troubleshooting > is problematic. > > > > I mentioned the symptoms to a colleague and it prompted a vague memory of > some issue between an earlier version of ARS and Oracle-RAC, even though the > versions were listed as compatible. BMC support can't find any mention and > so far (considering the site security restrictions) have only been treating > the symptoms. BMC support seems to think the problem is running multiple > class manager jobs at the same time, but we aren't doing that. The last time > it happened, the system came back up with a *bunch* of corrupted forms (bad > field counts between arschema and field tables for a variety of forms) and a > "change pending" class manager job showed up out of nowhere -- before system > restart, we weren't doing anything in class manager / class manager was > idle. > > > > In trying to make sense of this, I can only imagine that ARS starts up and > connects to the Oracle-RAC cluster in such a screwed-up fashion that it > either retrieves (or causes RAC to return) pieces of the database from > different points in time -OR- skips parts of the DB -OR- the Oracle-RAC > cluster is not keeping itself in sync like we think -OR- > <heck-if-i-know-feel-free-to-guess>. All I can say is I've never encountered > the behavior before and it's beyond weird. > > > > Two questions: > > 1. Disregarding the issues I've mentioned, does anyone recall ANY (and I > mean *any*) issues between Oracle-RAC and any version of ARS? It's the only > clue we have at this point and I'm grasping at straws. > > > > 2. Has anybody experienced the described weirdness, regardless of ARS > version? > > > > Thanks, > > JDHood > > _attend WWRUG11 www.wwrug.com ARSlist: "Where the Answers Are"_ > _attend WWRUG11 www.wwrug.com ARSlist: "Where the Answers Are"_ > ------------------------------ > This e-mail and its attachments may contain Forest Laboratories, Inc. > proprietary information that is privileged, confidential or subject to > copyright belonging to Forest Laboratories, Inc. This e-mail is intended > solely for the use of the individual or entity to which it is addressed. If > you are not the intended recipient of this e-mail, or the employee or agent > responsible for delivering this e-mail to the intended recipient, you are > hereby notified that any dissemination, distribution, copying or action > taken in relation to the contents of and attachments to this e-mail is > strictly prohibited and may be unlawful. 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