Re: Tomcat upgrade: 3.3.1 --> 5.0.28, hang up after running 1 or 2 days

[Glen Mazza <gr...@verizon.net>]

Monica Wu wrote:

> This is a update for this problem/solution.
> 
> After removing Java 1.5 + Tomcat 5.0, reinstalling Java 1.3 + Tomcat 3.3.1 on last Monday, 1/23/2006, everything has been running fine by far.
> 
> I have certain confidence to conclude that different versions of Java and Tomcat coexisting introduced the upgrade problem.
> 

By the way, may I ask why you needed to install "J2EE 1.3" (see below) 
also? I can understand the J2SE SDK, but am unsure why you needed J2EE 
downloaded as well.  I wonder if that is causing conflicts with whatever 
TC itself provides.

Glen


> Thank you all for your attention and help!
> 
> - Monica
> 
> -----Original Message-----
> From: Monica Wu [mailto:Monica.Wu@XenoPort.com]
> Sent: Tuesday, January 24, 2006 11:11 AM
> To: Tomcat Users List
> Subject: RE: Tomcat upgrade: 3.3.1 --> 5.0.28, hang up after running 1
> or 2 days
> 
> 
> Thank you for your attention, Glen!
> 
> These 2 (good and buggy) production tomcat servers run different web applications on different physical machines. Their hardware and operation systems including Windows service packs are same. Tomcat configuration is very similar. The good tomcat server was brand new (new installed operating system, new web application) and started Java 5.0 + tomcat 5.0 at the very beginning. The buggy one started with Java1.3 + Tomcat 3.3.1 and had ran smoothly about 4 years. 
> 
> Regarding the web application on the buggy tomcat 5.0 server. The source code remain the same before and after the tomcat upgrade. The only change is to use the new java 1.5 compiler with option "-souce 1.4". Compiling is not a problem. Starting the buggy tomcat 5.0 is not a problem. The only problem is hangup after some user access.
> 
> All possible changes were minimized during tomcat upgrade.
> 
> The buggy tomcat server was rolled back to Java 1.3 + tomcat 3.3.1 again last Friday. This rollback did not fix the problem. Yesterday (last Monday) I removed Java 1.5 + Tomcat 5.0 completely. JDK 1.3 + J2EE 1.3 were re-installed. At this point, everything was rolled back to the state before tomcat upgrade. 
> 
> This buggy tomcat server has run okay by far (< 24 hours), but is too early to say it is fixed. If it can behave until the end of this week, I may dare to say it is fixed and the problem is caused by the upgrade. Maybe the co-existence of Java 1.3 and 1.5. Maybe co-existence of Tomcat 3.3 and 5.0. Maybe ...
> 
> - Monica
> 
> 
> -----Original Message-----
> From: Glen Mazza [mailto:grm7790@verizon.net]
> Sent: Tuesday, January 24, 2006 10:47 AM
> To: Tomcat Users List
> Subject: Re: Tomcat upgrade: 3.3.1 --> 5.0.28, hang up after running 1
> or 2 days
> 
> 
> Monica Wu wrote:
> 
> 
>>First of all, upgraded to the version I have ever tested. Tomcat 5.0 has been running well on my another production server about one year. At that installation time, Tomcat 5.0 was the latest. Moreover, having all productions share the same Java + tomcat versions is one of my agendas to ease the development and maintenance.
>>
> 
> 
> Oh!  Now I understand.  Thanks for the explanation and sorry I couldn't 
> help you that much with your problem.  It is strange that Tomcat 5.0 has 
> been running well for a year on one server but not the new one.  BTW, 
> are you running different or the same web applications on the 
> good-for-one-year 5.0 server and the buggy new 5.0 one?  I wonder if the 
> source of the problem is with the applications that the buggy TC is 
> running rather than TC itself.
> 
> Glen
> 

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