如何清除WEBLOGIC缓存How To Clear The Server Cache Directories (cache, stage, tmp) (文档 ID 1323602.1)

爱被打了一巴掌 2023-10-18 19:35 33阅读 0赞

How To Clear The Server Cache Directories (cache, stage, tmp) (文档 ID 1323602.1)

In this Document  
Goal  
Solution  
APPLIES TO:

Oracle WebLogic Portal - Version 8.1 and later  
Oracle E-Business Suite Technology Stack - Version 12.2.1 to 12.2.1 \[Release 12.2\]  
Oracle SOA Suite - Version 12.2.1.2.0 to 12.2.1.2.0 \[Release 12c\]  
Oracle WebLogic Server - Version 8.1 and later  
Information in this document applies to any platform.  
GOAL

WebLogic Server (WLS) has several server cache directories it uses to store deployed applications and shared libraries. Each server (admin and managed) has its own cache directories named cache, stage and tmp. Sometimes these cache directories become stale and there can be a mismatch between what's running in memory and what's in the cache directory. This can cause various WebLogic Portal (WLP) issues such as NullPointerExceptions, broken portlets and deployment problems, to name a few. When experiencing these types of issues the first thing you should do is clear the cache directories to see if it resolves the issue.

This document explains how to clear the server cache directories (cache, stage, tmp).

SOLUTION

Note: This applies to all WLP versions from 8.1 all the way through 10.3.X.

1. Shutdown all admin and managed servers.

2. For WLP versions 9.2 and above, delete the following Admin and Managed server cache directories:

<Domain>/servers/<Server Name>/cache  
<Domain>/servers/<Server Name>/stage (if exists)  
<Domain>/servers/<Server Name>/tmp

For WLP version 8.1, delete the equivalent server cache directories:

<Domain>/<Server Name>/stage  
<Domain>/<Server Name>/.internal  
<Domain>/<Server Name>/.wlnotdelete

Notes  
The domain directory structures are different between 8.1 and all other versions  
The servers must be shutdown in order to clear the cache directories  
The stage directory normally doesn't exist for the admin server unless the application is deployed to the admin server (e.g, in WLP 8.1)

3. Restart all admin and managed servers. The cache directories (cache, stage, tmp) are then automatically recreated upon server startup and application deployment.

When should you clear out the server cache directories?

After installing a patch  
Upon redeployment of an application  
Upon redeployment of a shared library