Ya, I don't get the comment of "affects bandwidth" either. Usually I hear this from a manager who thinks they are a developer. When a WMQ client program issues a MQGET, only a few bytes are sent across the network. The 2 major items that are sent are: Connection Handle (4 bytes) and Object Handle (4 bytes).
In the past, I have used small WaitInterval of 3, 5 and 10 seconds with no noticeable network hit for a Windows based MQ client program running as a service. I mean seriously, if you changed your WaitInterval from 120 to 3 seconds (40 times smaller) then your program would be sending an extra 320 bytes (40 * 8).
You are going to do all this extra work to save less than 1 KB of bandwidth per every 120 seconds. I think you should suggest to your manager(s) that they need re-evaluate if there is actually a problem with using a smaller WaitInterval value.
Regards, Roger Lacroix Enterprise Architect Capitalware Inc.
At 12:56 PM 8/4/2003, you wrote:
Steve, I guess we come from different schools; sending a "quit" message seems quite elegant to me. Are you claiming the waitinterval affects bandwidth? I don't get it.
> -----Original Message----- > From: Steve D. Perkins [SMTP:[EMAIL PROTECTED] > Sent: Saturday, August 02, 2003 3:42 PM > To: [EMAIL PROTECTED] > Subject: MQGet Blocked Read > > Hello, > > I have an application which one of the prerequisites is to call MQGET with > a minimum 120 second WaitInterval! This application is using MQSeries 5.3 > client on a WIN32 platform and runs as a service. The minimum 120 second > interval is there to supposedly keep the bandwidth down to a minimum. > However, the problem is with WIN32 the Service Control Manager times out and > cannot shut down the service in a timely fashion. MQGET will only return if > the WaitInterval has expired or a message is received. My only solution is > to put a message onto the "GET Queue" prior to shutdown to force an exit out > of the blocked read. I was hoping for a more elegant solution on WIN32. > Are there any other ways to "signal" a blocked MQI MQGET on Win32 to exit? > > Thanks much! > > Steve > > 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
