Thanks Paul, I found a "Technote" that mentioned another environment variable that could be used instead:
export AMQ_THREADMODEL_RESET=1 Is it preferable to use this e.v. rather then LD_ASSUME_KERNEL, and if so what values are available for it and what is their impact? Thanks again Dave -----Original Message----- From: MQSeries List [mailto:[EMAIL PROTECTED] Behalf Of Paul Clarke Sent: 29 June 2004 15:54 To: [EMAIL PROTECTED] Subject: Re: Fw: Red Hat Linux 9 David, I spoke to one of our Linux guys and this was his response > there are 2 possible values you can set in LD_ASSUME_KERNEL. Both > are supported by MQ. > > 2.4.19 Linuxthreads with floating stacks > 2.2.5 Linuxthreads without floating stacks > In order to use MQ on Red Hat 9 (or any NPTL based distribution) you > must use one of these settings and have at least MQ CSD 5 installed. > The LD_ASSUME_KERNEL variable must be set in the enviornment when > executing any of the mq administration commands (crtmqm, strmqm, runmqsc etc). > (Note: Also if you have trouble installing MQ then try setting > LD_ASSUME_KERNEL before executing the 'rpm' installation commands) > > MQ applications (linked with libmqm.so or libmqm_r.so) must also set > LD_ASSUME_KERNEL to one of the values, however client applications > (libmqic.so or libmqic_r.so) can run without setting LD_ASSUME_KERNEL. > > I hope this helps. So do I, Cheers, P. Paul G Clarke WebSphere MQ Development IBM Hursley > ----- Forwarded by Paul Clarke/UK/IBM on 29/06/2004 12:24 ----- > > "David C. Partridge" <[EMAIL PROTECTED]> > Sent by: MQSeries List <[EMAIL PROTECTED]> > > 29/06/2004 12:10 > > Please respond to > MQSeries List > > To > > [EMAIL PROTECTED] > > cc > > Subject > > Red Hat Linux 9 > > I know there was a discussion about this while back, and IIRC the consensus > was that you should set LD_ASSUME_KERNEL=2.2.5 to run MQ 5.3 on RHL 9.0. > > Is this really the right value - or should I be using > LD_ASSUME_KERNEL=2.4.1? > > The reason I ask this is that MQ 5.3 is running fine on my RHL 8 system with > kernel level 2.4.20 with no specific LD_ASSUME_KERNEL settings and should > therefore be using the "floating stacks" version of LinuxThreads by default > (rather than the original LinuxThreads version which a 2.2.5 value would > force). > > Has this changed with recent CSDs (i.e. does MQ 5.3 plus CSD?? now have the > fixes to work correctly with both LinuxThreads and NPTL?)? > > Do user applications using the QM need this setting or is it just the queue > manager processes? > > What about the IBM JDK/JRE? Does that need this as well? > > Thanks, > David > > Instructions for managing your mailing list subscription are provided in > the Listserv General Users Guide available at http://www.lsoft.com > Archive: http://vm.akh-wien.ac.at/MQSeries.archive Instructions for managing your mailing list subscription are provided in the Listserv General Users Guide available at http://www.lsoft.com Archive: http://vm.akh-wien.ac.at/MQSeries.archive Instructions for managing your mailing list subscription are provided in the Listserv General Users Guide available at http://www.lsoft.com Archive: http://vm.akh-wien.ac.at/MQSeries.archive
