Hello Kubota,
I have already deployed this kind of script. Effectively you need to manage the crash case. To avoid violation case. The best, is to give a specific tag name to your lock file used by your VCS resource (use a tag which managed several other lock), and create a Script to cleanup this kind of lock file during the boot time startup before S99vcs script. I attach at this email a sample of this cleanup script. Should be put under the same location of S99vcs script (depending of Unix OS used). The script can be helped for example S98vcscleanupflag. S98 will be execute before S99vcs. This is simple an avoid any modification from Official S99vcs, which can be modify follow up update VCS release or VCS patch. I hope this help Best regards, Philippe -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Kubota, Harald (GTS Pac Rim) Sent: Tuesday, February 03, 2009 8:53 AM To: Manuel Braun; [email protected] Subject: Re: [Veritas-ha] Application Resource with Start/Stop but noMonitorscript possible? Hi Manuel, > Is it possible to use an application resource with a start and stop script > and no monitor script and VCS will trust the start script and believe the > application is running although it's actually not? This is not possible, but as a workaround you can just touch a file in the start script which is tracked by the monitor script. Here is an example monitorscript: #!/bin/sh [ -f /var/VRTSvcs/lock/dummy.lock ] && exit 110 exit 100 Yeah, we thought about this too and actually implemented a very similar solution, however this leads into troubles if you crash a node as it will leave the lock file on the crashed node and when it comes back, it'll find the lock file and report the application as online on the same node, giving you a concurrency violation. We could use /tmp (or anything similar memory based filesystem which always gets wiped out on reboots). Or modifying the vcs startup script to remove all locks in the above directory before it does the hastart. Neither solution is very elegant, safe or convenient, so I was hoping there is a better built-in solution available for this rather unusual problem. Thanks, Harald ------------------------------------------------------------------------ -- This message w/attachments (message) may be privileged, confidential or proprietary, and if you are not an intended recipient, please notify the sender, do not use or share it and delete it. Unless specifically indicated, this message is not an offer to sell or a solicitation of any investment products or other financial product or service, an official confirmation of any transaction, or an official statement of Merrill Lynch. Subject to applicable law, Merrill Lynch may monitor, review and retain e-communications (EC) traveling through its networks/systems. The laws of the country of each sender/recipient may impact the handling of EC, and EC may be archived, supervised and produced in countries other than the country in which you are located. This message cannot be guaranteed to be secure or error-free. References to "Merrill Lynch" are references to any company in the Merrill Lynch & Co., Inc. group of companies, which are wholly-owned by Bank of America Corporation. Secu! rities and Insurance Products: * Are Not FDIC Insured * Are Not Bank Guaranteed * May Lose Value * Are Not a Bank Deposit * Are Not a Condition to Any Banking Service or Activity * Are Not Insured by Any Federal Government Agency. Attachments that are part of this E-communication may have additional important disclosures and disclaimers, which you should read. This message is subject to terms available at the following link: http://www.ml.com/e-communications_terms/. By messaging with Merrill Lynch you consent to the foregoing. ------------------------------------------------------------------------ -- _______________________________________________ Veritas-ha maillist - [email protected] http://mailman.eng.auburn.edu/mailman/listinfo/veritas-ha
etc_rc3.d_S98vcscleanupflag
Description: etc_rc3.d_S98vcscleanupflag
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