You are obviously right and your network administrators are wrong. If you have a simple structure of a single sending queue manager, BigIP and two receiving queue managers, it means that the same single channel basically has one sending MCA and two receiving ones. Each is counting its own sent or received messages and only the summary of the sequence numbers of the receiving MCAs will be equal to the sequence number of the sending MCA. Basically if round-robin algorithm is used the channel will be in retry with the second sent message.
Eugene Rosenberg --- Bob Kasischke <[EMAIL PROTECTED]> wrote: > Thanks Eugene. Yes we are using a F5 BigIP and the > network admins claim > they have it working on the message level. My > experience is the same as > yours: we are getting message sequence number > problems. > > > -----Original Message----- > > From: eugene rosenberg > [mailto:[EMAIL PROTECTED] > > Sent: Wednesday, September 17, 2003 7:43 PM > > To: [EMAIL PROTECTED] > > Subject: Re: Losing Message Sequence Number Sync > > > > > > If you are talking about F5 BigIP, I used them in > MQ > > network. But you cannot use them for load > balancing on > > the message level since you will experience > channel > > sequence number problems. However, they can be > used to > > load balance on the connection level. Each channel > > connection can be considered as TCP session and > all > > messages within the session should go to the same > > queue manager. > > > > Eugene Rosenberg > > > > --- Bob Kasischke > <[EMAIL PROTECTED] wrote: > > > Our site is using a "F5 Load Balancer" in our > network. > > > > > > Using this box we are able to setup up > identical, duplicate Queue > Managers > > > on two Unix servers. The F5 will load balance > work between the > > > queue managers. > > > > > > The problem is we lose message sequence number > > > synchronization when the F5 switches between > unix boxes for some > versions of > > > MQSeries but it is not a problem when using V5.3 > on IBM > > > mainframes. > > > > > > Does anybody know what I am talking about? If > so > > > then how does the mainframe maintain sync? > > > > > > > > > > > > Robert S. Kasischke > > > 415-243-6975 > > > > > > > > > > > > > > > __________________________________ > > Do you Yahoo!? > > Yahoo! SiteBuilder - Free, easy-to-use web site > design software > > http://sitebuilder.yahoo.com > > > > 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 __________________________________ Do you Yahoo!? Yahoo! SiteBuilder - Free, easy-to-use web site design software http://sitebuilder.yahoo.com 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
