topic RE: Anyone seen these error in Windchill

Anyone seen these error

avillanueva — Wed, 02 May 2018 17:03:29 GMT

Users are getting this on search (NullPointerException). Lower searchresults area displays Windchill Error and this message. If the userrefreshes, clears search or other repeated attempts, then can proceedwithout error. Seems random. I sure a reboot would clear out the bug butI would

Anyone seen these error

avillanueva — Wed, 17 Nov 2010 16:05:50 GMT

Hmmm... Knowledge base seems to indicate this issue is known but fixed
in 9.1 M020 which we are on. Restart Tomcat is recommended. Looks like
more SPRs fixed in M050. Ok, restart Tomcat it is.

Anyone seen these error

tbusch — Wed, 17 Nov 2010 16:06:23 GMT

I've been seeing this too on 9.1. It seems to happen consistently the first time we hit the library->team page after a server restart. It makes me think there's a cache somewhere that isn't getting initialized, but I'm not sure yet.

-Thomas R. Busch
Sr. Software Developer
Stryker Instruments
(269) 323-7700 x4014
tom.busch@stryker.com<">mailto:tom.busch@stryker.com>

Anyone seen these error

RajeshBalasunda — Wed, 17 Nov 2010 16:38:05 GMT

We also see this now and then, a restart of Tomcat after clearing the
cache resolves the issue. Haven't investigated the underlying cause yet.

Best Regards

Rajesh Balasundaram

RE: Anyone seen these error

sdrzewiczewski — Wed, 17 Nov 2010 16:51:40 GMT

I've seen this error and in some cases it appears to be caused by an incorrect URL.

Is this happening for all users, or just some users?

EmptyModelCommand -> look to see if the OID is getting passed to the page, etc.

RE: Anyone seen these error

davide.marietta — Tue, 23 Nov 2010 14:37:10 GMT

We experienced this issue systematically.

It occurred when displaying a table with no elements in it (ex. going to the search page for the first time, empty results table). The problem occurred systematically for italian localization.

We opened a call. TS gaveus a patch and never happened again. We are on 9.1 M020

RE: Anyone seen these error

MarkPlimley — Tue, 23 Nov 2010 19:21:15 GMT

This is most likely caused by insufficient heap space (memory) allocation for Tomcat. Regardless of how much RAM your server has, Tomcat and various Windchill java processes (ServerManager and MethodServer) have a specific max memory allocation.

For wtomcat_start, you need to increase JAVA_OPS values -XX:PermSize, -XXMaxPermSize, -Xms and -Xmx. Double them from their old values if you have enough unused system RAM (keep total used system memory below 85% of actual total RAM). I always make these values some multiple of 2, like 92, 128, 192, 256, 512 or 1024.

If Tomcat is installed as a Windows service, run regedit and go to HEKY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\Tomcat\Parameters. To change them, double-click on each JVM Option Number where these 4 values appear.

Be sure to leave the "M" at the end of each numeric value, and keep the two PermSize values less than the two Xms/Xmx values. You can make PermSize = MaxPermSize and Xms = Xmx if you want.

Mark Plimley NxRev, Inc.
PLM Implementer/Trainer

RE: Anyone seen these error

patrick.chin1 — Thu, 25 Nov 2010 19:59:55 GMT

Hey Tony,

We did have issues back in WC090M050 with thePTC supplied version of java. We even tried to start tomcat first and have a delay to make sure tomcat has allocated the resources when starting the process. That's now all gonewhen I've reset it to the latest supported version.

I usually use the one of the latest versions of Java. If it is Java 1.6.0_19 or 1.6.0_20, I have to install this patch 9.1-M050_TP23 if using WC091M050. for SPRS 1985832, 1974670...

I then set my tomcat heap to in the $TOMCAT_HOME/bin/wttomcat_start:

-Xms768M -Xmx3968M.

We haven't had any issues which results in restarting our servlet engine Tomcat. I talso depends on how much ram you have on your system to allocate. I usually give a minimum of 768MEG.