Re: New Tomcat 6 Deployment
Re: New Tomcat 6 Deployment
- Subject: Re: New Tomcat 6 Deployment
- From: Pascal Robert <email@hidden>
- Date: Wed, 30 May 2012 10:13:30 -0400
Le 2012-05-30 à 10:04, Ron Lift a écrit :
> I have been doing some more research and I am beginning to think this post describes the cause of the issue
>
> http://stackoverflow.com/questions/3320400/to-prevent-a-memory-leak-the-jdbc-driver-has-been-forcibly-unregistered
>
> Has anyone deployed and application to production with either Tomcat 6 or 7 with these messages? If so, did they have any issues?
>
> We are using out of the box EOF, the article talks about the need for connection pooling. I have read the Cayenne supports connection pooling. Does EOF?
>
> Or maybe we switch to monitor for deployment on RHEL6. I read the articles and considering it. Anyone done this?
monitor as in JavaMonitor? Yes, lot of us have done it on RHEL or CentOS (which is a "free" clone of RHEL). It works great.
>
> On Tue, May 29, 2012 at 3:30 PM, D Tim Cummings <email@hidden> wrote:
> I have noticed these messages too and would like to know if there is anything that can be done about them
>
> Tim
>
>
>
> On 29/05/2012, at 23:31, Ron Lift <email@hidden> wrote:
>
>> At work we are migrating from RHEL 5 to RHEL 6 and also upgrading to Tomcat 6. When I deploy the current application that is running on Tomcat 5.5 to tomcat 6, I see the following messages in the catalina.out when I either deploy the app, start/ stop the app or the tomcat instance. I do not have these messages in my tomcat 5.5 log files. Is there some setting that I am missing? Any help will be greatly appreciated
>> Eclipse 3.6.1 , WOLips 3.6. MSSQL 2008R2 Database.
>>
>> The last 2 messages repeat multiple times
>>
>>
>> May 29, 2012 8:59:00 AM org.apache.catalina.loader.WebappClassLoader clearReferencesJdbc
>> SEVERE: The web application [/CoopApp] registered the JDBC driver [com.microsoft.sqlserver.jdbc.SQLServerDriver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered.
>>
>> May 29, 2012 8:59:00 AM org.apache.catalina.loader.WebappClassLoader clearThreadLocalMap
>> SEVERE: The web application [/CoopApp] created a ThreadLocal with key of type [er.extensions.eof.ERXEC$1] (value [er.extensions.eof.ERXEC$1@1083964f]) and a value of type [java.util.Vector] (value [[]]) but failed to remove it when the web application was stopped. This is very likely to create a memory leak.
>>
>> May 29, 2012 8:59:00 AM org.apache.catalina.loader.WebappClassLoader clearThreadLocalMap
>> SEVERE: The web application [/CoopApp] created a ThreadLocal with key of type [er.extensions.foundation.ERXThreadStorage.ERXThreadStorageCloneableThreadLocal] (value [er.extensions.foundation.ERXThreadStorage$ERXThreadStorageCloneableThreadLocal@2f012501]) and a value of type [java.util.HashMap] (value [{}]) but failed to remove it when the web application was stopped. This is very likely to create a memory leak.
>>
>> Ron Lift
>> C-E
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