How to prevent file locking when undeploying a Tomcat web app?

tomcat memory-leaks tomcat7 file-locking undeploy
bali208 picture bali208 · Feb 14, 2013 · Viewed 49.3k times · Source

I am using the manager app in tomcat 7, and i am unable to undeploy an application completely.

It says FAIL - Unable to delete [F:\apache-tomcat-7.0.33\webapps\balaji]. The continued presence of this file may cause problems.

I read somewhere its because of some phenomenon called memory leak , and if we fix it the issue will be solved.

Can anyone tell me what is this memory leak in tomcat 7, and how can we fix it ?? I am using windows 7 OS. If i am able to fix it will my un-deploy and re-deploy process run smooth ?

Answer

mvlupan picture mvlupan · Feb 15, 2013

This is very common in Windows environment but there is a solution via the antiResourceLocking context property:

Open context.xml from /tomcat/conf folder and modify the context to match this :

<Context antiResourceLocking="true">

Edit: Updated properties following @JanM comment. Previously it also contained 'antiJARLocking'

Related questions

Best way to increase heap size in catalina.bat file

I have tomcat 6 server on windows xp ,And I start tomcat through console i.e. using startup.bat. AFAIK catalina.bat file is for windows so I am changing bat file for memory management.I don't have tomcat configuration window. …

Read More
Is there a way to avoid undeployment memory leaks in Tomcat?

This question is for anyone who's ever tested the "Find leaks" button in the Tomcat manager and got some results like this: The following web applications were stopped (reloaded, undeployed), but their classes from previous runs are still loaded in …

Read More
Using Jconsole for Memory Leak

I'm trying to diagnose some memory issues in our J2EE server. I've setup jconsole on our live server and I'm trying to monitor the status of the tomcat server through it. I've a quick question about the Threads tab …

Read More