Hi, On Thu, Feb 07, 2008 at 12:22:18PM +0100, Andrew Beekhof wrote: > > On Feb 7, 2008, at 10:08 AM, Lino Moragon wrote: > >> Hi list, >> I'm running a HA 2 node active / passive cluster with drbd and mysql. >> I was told about the ocf monitoring function of the yet available mysql >> ocf script. > > well if its an OCF script it needs to implement some kind of monitoring - > its mandatory > > whether the monitoring it does is any good is another question... > >> Could you tell me the advantages or disadvantages of implementing this >> monitoring function? > > its not optional :-)
It isn't, but he was probably asking about the repeated monitor operations which are optional. Thanks, Dejan >> I mean surely it does have benefits, but what if I my php webapplications >> e.g. generate too much load, too large and complex queries and the timeout >> value exceeds? >> Then the server would restart or failover and then that would repeat >> itself on and on and my ha-cluster wouldn't be a hacluster anymore. >> Have you any experience what possible things could happen to a mysql >> server and what would be the reasons for hang-up, crash, etc...? >> Problem is, I can't estimate the load or amount of queries the application >> will generate, as I don't have much experience in this field and the DBs >> will grow over time. >> Should I implement ocf monitoring or rather not? >> >> I'm very thankful for any advice or hints about this matter, where to get >> more information, or personal experiences with the stability of mysql >> servers. >> Thanks >> Lino >> _______________________________________________ >> Linux-HA mailing list >> [email protected] >> http://lists.linux-ha.org/mailman/listinfo/linux-ha >> See also: http://linux-ha.org/ReportingProblems > > _______________________________________________ > Linux-HA mailing list > [email protected] > http://lists.linux-ha.org/mailman/listinfo/linux-ha > See also: http://linux-ha.org/ReportingProblems _______________________________________________ Linux-HA mailing list [email protected] http://lists.linux-ha.org/mailman/listinfo/linux-ha See also: http://linux-ha.org/ReportingProblems
