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| [Solved]Control Center memory limits? |
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| jefflowrey |
 Posted: Tue Apr 22, 2003 6:00 am Post subject: [Solved]Control Center memory limits? |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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I keep getting complaints from the control center that it is running low on memory, and I should quit and restart or save and refresh my workspace.
The difficulty is that the total memory on my computer is only about 1/3 full when this is occurring. 
So it seems that the Control Center is only able to use up to about 250 mbs of memory, regardless of how much is available. Is this true? Can I change this? I'd really like to be able to use at least *half* my available memory...
Last edited by jefflowrey on Wed Apr 23, 2003 5:46 am; edited 2 times in total |
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| kirani |
| Posted: Tue Apr 22, 2003 9:42 pm Post subject: |
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Jedi Knight
Joined: 05 Sep 2001
Posts: 3779
Location: Torrance, CA, USA
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I think Control Center Java application, by default, has a limit of 256MB. You can override this limit by specifying following java parameters in your control center batch file.
| Code: |
-Xms<size> set initial Java heap size
-Xmx<size> set maximum Java heap size
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I tried using these parameter but then I started getting some memory errors .. my control center application would still work in the background after getting this error!
I try to keep minimum number of message flows/sets to my workspace.
_________________
Kiran
IBM Cert. Solution Designer & System Administrator - WBIMB V5
IBM Cert. Solutions Expert - WMQI
IBM Cert. Specialist - WMQI, MQSeries
IBM Cert. Developer - MQSeries
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| jefflowrey |
| Posted: Wed Apr 23, 2003 5:45 am Post subject: [Solved]Control Center memory limits? |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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I'm trying to keep a minimum number of message sets and flows in my workspace. The problem is my one message set has several hundred fields.
I tried using the -Xmx and -Xms, and it didn't seem to work.
Memory utilization never went above 256MB, even with -Xms400M -Xmx600M.
I tried using both bin/java.exe and bin/javaw.exe in the batch file.
Maybe I had the switches in the wrong place... hrmmmm... Yes, that seems to work if I put the switches before the class name. 
It appears that the java and javaw supplied in <install_dir>/Tool/bin use '-mx' and '-ms' and not '-Xms' or '-Xmx' for these parameters. So what worked for me is
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| start bin\javaw.exe -cp "%MQSI_CLASSPATH%" -DDomainAware=%1 -mx600M -ms400M com.ibm.ivm.mqitool.app.MQIToolkit |
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