Integration Server Administrator's Guide : Configuring Ehcache on Integration Server : Working with Cache Managers : Adding a Cache Manager Configuration File to Integration Server
Adding a Cache Manager Configuration File to Integration Server
If you have an existing cache manager configuration file (for example, one that you created manually or one that you copied from another Integration Server), you can add it to your Integration Server using the following procedure.
If you are adding a configuration file that you created manually (rather than copying a configuration file from another Integration Server), verify that the file satisfies the following conditions before you perform this procedure:
*The name of the file ends with the extension “.xml”.
*The name of the file does not begin with the characters “SoftwareAG”.
*The <ehcache> element includes the name attribute. The name attribute specifies the name of the cache manager (the name under which the cache manager will be registered in Integration Server). Make sure the name does not begin with the characters “SoftwareAG”. Make sure the name is unique among cache managers on the Integration Server to which you are copying the file.
Example: <ehcache name="MyCacheManager">
*The rejoin attribute is set to “true” if the cache manager is configured to use a Terracotta Server Array. In other words, if the <terracottaConfig> element is present and its url attribute is specified, make sure the rejoin attribute is also specified and that it is set to “true.”
Example: <terracottaConfig url="srv3A:9510,srv3B:9510" rejoin="true">
*All distributed caches that are defined in the configuration file include the <nonstop> element. Integration Server requires all distributed caches to run in nonstop mode.
Example:
<cache
name="JLSCache01"
eternal="true"
maxElementsInMemory="5000"
overflowToDisk="false"
copyOnWrite="true"
copyOnRead="true">
<terracotta> <nonstop></nonstop> </terracotta>
</cache>
Note:  
If you have created your own configuration file, be aware that Integration Server Administrator does not preserve comments when it updates a configuration file. If your configuration file includes comments, those comments will be discarded the first time someone edits it using Integration Server Administrator.
To manually add a cache manager to an Integration Server
1. Copy your configuration file to the Integration Server_directory \instances\instance_name\config\Caching directory.
2. Restart Integration Server to initialize the cache manager.
Note:  
If the file that you copied to Integration Server in step 1 replaced the configuration file for a cache manager that is already registered on Integration Server, you can reload the cache manager using Integration Server Administrator instead of restarting the Integration Server. (If the cache manager is currently shut down, start it first and then reload it.) For procedures, see Reloading a Cache Manager.
3. Open Integration Server Administrator and go to Settings > Caching to verify that Integration Server was able to add your cache manager successfully.
If the cache manager is not listed on the Settings > Caching page or if it is not functioning properly, consult the server log or the Ehcache log to see whether errors occurred during the initialization process. For information about viewing the Ehcache log, see Logging Ehcache Activity. If there are problems with the configuration file (for example, if Integration Server could not parse the file or the file contains a duplicate cache manager name), Integration Server records an error message in the server log and writes a full stack trace to the error log.
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