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тАО09-01-2005 07:36 PM
тАО09-01-2005 07:36 PM
I tried to build the Tomcat examples following the documentation (@APACHE$CONFIG ANT ... etc) but while compiling javadoc, the system froze. ^T was the only thing I could do, it showed exe JAVA$JAVA using NO CPU, no change in used memory and adding 1 to IO each ^T. ^C and ^Y did not react, and after some time, telnet sessions timed out, new sessions could not be started (nor telnet, nor DECWindows at the console). Almost no disk activity.
Has anyone had the same experience?
What could be the problem?
(Next time I will >>>crash the system on reset, forgot that yesterday....)
Willem
OpenVMS Developer & System Manager
Solved! Go to Solution.
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тАО09-01-2005 08:40 PM
тАО09-01-2005 08:40 PM
Re: Building the TOMCAT examples
Have you looked at issues.apache.org/bugzilla
q
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тАО09-01-2005 09:58 PM
тАО09-01-2005 09:58 PM
Re: Building the TOMCAT examples
OpenVMS Developer & System Manager
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тАО09-01-2005 10:00 PM
тАО09-01-2005 10:00 PM
SolutionI have a customer where the Tomcat server process consumes 1.5Gbytes physical memory. On my test cluster it uses about 500Mbytes without doing anything very much.
CSWS_JAVA V2.1 (aka TOMCAT for OpenVMS) is based on TOMCAT V4.1.24 - see http://h71000.www7.hp.com/openvms/products/ips/apache/csws_java.html
I believe that there's an implementation of TOMCAT V5.x in the pipeline.
Cheers, Colin.
A thought - you might find some of the slides from a recent User Group seminar useful: http://www.downloads.xdelta.co.uk/decus%20uk%202005/vms%20web%20server%2012jul2005%20issue%201%2012jul2005.pdf or start at http://www.hpug.xdelta.co.uk
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тАО09-01-2005 11:11 PM
тАО09-01-2005 11:11 PM
Re: Building the TOMCAT examples
I _know_ that JAVA takes rediculous amounts of memory. Therefore, with my box, I keep to the Classic VM, FastVM requires even more (at least double the resources of the Classic one) and I don't have that much...
All settings have been set according the recommendations long ago. I did run Netneans 3.6 on my machine, including compilation. Slow (it's the minimal configuration), but it will run.
ANT however seems to be quite another story. I can imagine that the system will fire threads to do sub-compilations (MMS takes a lot of resources as well, because of that) and that there is some problem with these. Java internals, quite likely.
But IF I'm running out of memory, I would like to know about it, eventually crashing my process (with a message, preferably) - instead of requiring a reboot (I mean: forced reset) of the whole system.
I had some problems with CSWB 1.7 as well combined with Tomcat 2.1 and Java 1.4.2P2 - see another thread. Hard to imagine, but I don't rule out a relation....
OpenVMS Developer & System Manager
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тАО09-02-2005 12:18 AM
тАО09-02-2005 12:18 AM
Re: Building the TOMCAT examples
You can monitor it using AvailabilityMgr or AMDS from another node or even a peecee.
Purely Personal Opinion
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тАО09-03-2005 02:49 AM
тАО09-03-2005 02:49 AM
Re: Building the TOMCAT examples
BTW: I have done an autogen VERY RECENTLY and my pagefile did not need adjustments.
Anyway, I'll try with an added pageefile. I'll add another disk online (BTW. can it be undone without rebooting the system?)
Willem
OpenVMS Developer & System Manager
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тАО09-04-2005 05:39 AM
тАО09-04-2005 05:39 AM
Re: Building the TOMCAT examples
You can add disks without rebooting and pagefiles too. You can remove pagefiles - they get marked for removal and actually removed when they are not inuse. If marked for removal then they won't be used for new allocations.
Purely Personal Opinion
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тАО09-05-2005 06:26 PM
тАО09-05-2005 06:26 PM
Re: Building the TOMCAT examples
Remnains the issue that Java needs that musch resources.
OpenVMS Developer & System Manager