What is Clear Cache in Weblogic When is it Required to Clear Weblogic Cache

Question: What is the Important Configuration File in Apache?

Answer: Basically all the web-tier related files (.jsp .class, JSPCompiled files etc.,) get stored in ./wlnotdelete/app_yourapplicaiton directory. This is treated as cache whenever there is restart of a WebLogic instance happen then the WebLogic server will look-up for last serviced object status stored in the cache to service for any pending requests. Usually, when your EJB Classes need sessions, JMS object requires persistance, your web-tier may contain static contents then Cache will be used by WebLogic Application Server instance.
(What is Clear Cache in Weblogic When is it Required to Clear Weblogic Cache)
Whenever your application is accessed for the first time that fresh deployment of a new version, WebLogic server lookup in this directory, if there are older objects persists that will be conflict with new code objects. This is where the need of removal of cache arises.

Where there is a need of new version deployment we might need to clear the cache when the changes to the new version is not reflected. In the old version WebLogic 8.1 below we used to remove .wldonotdelete folder. In new version of WebLogic 9.x onwards removal of cache means deleting each server instance’s tmp folder contains cache, stage folders or you can simply remove tmp folder too provided there should not be configuration changes happen to the server.
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Generally for WebLogic 9.x and higher versions

WIN: C:\bea\user_projects\domains\yourdomain\servers\yourserver\tmp

UNIX: /bea/user_projects/domains/yourdomain/servers/yourserver/tmp
you can use the following commands to clear the cache:

WIN: rd C:\bea\user_projects\domains\yourdomain\servers\yourserver\tmp \s

UNIX: rm -rf /bea/user_projects/domains/yourdomain/servers\yourserver/tmp

Here I am removing all the subdirectories and files in the the given directory.

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