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From pix_siro <flaviosuard...@alice.it>
Subject Re: java thread open after Tomcat shutting down
Date Tue, 07 Dec 2010 10:38:47 GMT

You're right but for the moment this is not my priority. Anyway I post the
lines of code in the catalina.out logfile with errors:

3-dic-2010 11.32.05 org.apache.catalina.loader.WebappClassLoader
clearReferencesJdbc
GRAVE: The web application [/OverEncrypt] registered the JBDC driver
[org.postgresql.Driver] but failed to unregister it when the web application
was stopped. To prevent a memory leak, the JDBC Driver has been forcibly
unregistered.
3-dic-2010 11.32.05 org.apache.catalina.loader.WebappClassLoader
clearReferencesThreads
GRAVE: The web application [/OverEncrypt] appears to have started a thread
named [pool-1-thread-1] but has failed to stop it. This is very likely to
create a memory leak.

I think the second GRAVE error is that significant.


Pid * wrote:
> 
> On 12/7/10 10:13 AM, pix_siro wrote:
>> 
>> I solved writing a simple script to shutting down tomacat and kill the
>> java
>> process:
>> 
>> # stop tomcat
>> su - primelife -c "/usr/local/apache-tomcat-7.0.4/bin; ./shutdown.sh
>>> /dev/null 2>&1"
>> 
>> # give application 5 seconds to stop itself
>> sleep 2
>> 
>> # if application is still running kill it anyway
>> app_pid=$(ps axuw | grep -v grep | grep
>> "/usr/local/apache-tomcat-7.0.4/bin"
>> | awk '{print $2}')
>> [[ "x${app_pid}x" == "xx" ]] || kill -9 ${app_pid} >/dev/null 2>&1
>> 
>> Thanks.
> 
> You've treated the symptom.  What was the actual problem?
> 
> If you stop an application, or Tomcat and the catalina.out logfile
> contains warnings about threads still running, you'll have an idea of
> what's wrong.  (Which is why we asked for more information.)
> 
> Alternatively, ignore the problem and any other side-effects it might
> have.
> 
> 
> p
> 
> 
>> markt-2 wrote:
>>>
>>> On 03/12/2010 18:36, pix_siro wrote:
>>>>
>>>> Hi all,
>>>> I'm working on Ubuntu 9.10, I have implemented a Java application and I
>>>> have
>>>> installed it on Tomcat 7.0.4 with a WAR file. When I shut down Tomcat
>>>> with
>>>> the command ./shutdown.sh, a java thread remains open. Notice that
>>>> application have a connection with a postgres db but the connections
>>>> are
>>>> correctly closed. Someone know why?
>>>> With the command ps ax | grep java I have the thread's specifications:
>>>
>>> That is the process, not the specific Java thread. Take a thread dump to
>>> see what threads are still running. You want the non-daemon one.
>>>
>>> Mark
>>>
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>>>
>>>
>> 
> 
> 
>  
>  
> 

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View this message in context: http://old.nabble.com/java-thread-open-after-Tomcat-shutting-down-tp30366568p30395039.html
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