Tomcat issue

["Yadav, Sushma" <Su...@colt.net>]

Hi,

 

We are using Tomcat5.5 on LINUX plaftform.Tomcat is used by web client
of our one of the application known as Serena Dimensions.

 

>From past few days out tomcat shutdowns on daily basis or withinh an
interval of 2-3 days.then we have to restart it.

 

How we check:

 

1) Open the URL http://loncfg02:8080/   and we get "The page can not be
displayed"

   LONCFG02: It is our Linux box  

  8080 is port in use

 

2) Then we login to loncfg02 box and go to tomcat directory and run sh
shutdown.sh and then starup.sh

 

3) The page get displayed.

 

I am  attaching tomcat log files for your refrence.

 

Please suggest why this is happening.Your support will be highly
appreciated.

 

Thanks&Regards,

Sushma 



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Re: Tomcat issue

[Christopher Schultz <ch...@christopherschultz.net>]

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Mark,

On 6/4/2009 7:42 AM, Mark Thomas wrote:
> Yadav, Sushma wrote:
>> We are using Tomcat5.5 on LINUX plaftform.Tomcat is used by web client
>> of our one of the application known as Serena Dimensions.
> 
> That could be one of 28 different 5.5.x versions. Which one is it?

- From the logs, it looks like it's 5.5.12.

Sushma, you should really upgrade to a more recent version of Tomcat.
The 5.5 series is at 5.5.27 and there have been a lot of improvements
and bug fixes over the years.

>> I am  attaching tomcat log files for your refrence.
> 
> We don't need (or want) to see days of logs files. The only bits of
> interest are when Tomcat shutdown so please provide extracts from the
> logs at that time.

+1

>> Please suggest why this is happening.Your support will be highly
>> appreciated.
> 
> Possibilities:
> - someone is running the shutdown script
> - an app is calling system exit
> - the linux OOM killer

catalina.out seems to show a graceful shutdown of Tomcat each time I can
see it (but there's no telling what might be in there... I don't have
all night to read this damned 15-day log file), so I suspect that #1 or
#2 above are the cause.

- -chris
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Re: Tomcat issue

[Mark Thomas <ma...@apache.org>]

Yadav, Sushma wrote:
> We are using Tomcat5.5 on LINUX plaftform.Tomcat is used by web client
> of our one of the application known as Serena Dimensions.

That could be one of 28 different 5.5.x versions. Which one is it?

> From past few days out tomcat shutdowns on daily basis or withinh an
> interval of 2-3 days.then we have to restart it.

How does it shutdown? Gracefully (as if someone had run the shutdown
script) or does it terminate abruptly as if someone had done a kill -9?

> I am  attaching tomcat log files for your refrence.

We don't need (or want) to see days of logs files. The only bits of
interest are when Tomcat shutdown so please provide extracts from the
logs at that time.

> Please suggest why this is happening.Your support will be highly
> appreciated.

Possibilities:
- someone is running the shutdown script
- an app is calling system exit
- the linux OOM killer

Mark



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