WAS v8.5 > Script the application serving environment (wsadmin) > Use properties files to manage system configuration > Manage specific configuration objects using properties files > Work with cache provider properties files

Work with servlet cache properties files

We can use properties files to create, modify, or delete servlet cache properties and custom properties.

Determine the changes to make to your servlet cache configuration or its configuration objects.

Start the wsadmin scripting tool. To start wsadmin using the Jython language, run the wsadmin -lang jython command from the bin directory of the server profile. Using a properties file, we can create, modify, or delete a servlet cache instance. We can also create, modify, or delete servlet cache custom properties.

Run administrative commands using wsadmin to create or change a properties file for a servlet cache, validate the properties, and apply them to your configuration.

Actions for servlet cache properties files. We can create, modify, and delete servlet cache properties.

Action Procedure
create Set required properties and then run the applyConfigProperties command.
modify Edit properties and then run the applyConfigProperties command to modify the value of a custom property.
delete Run the deleteConfigProperties command to delete a property. If the deleted property has a default value, the property is set to the default value. To delete the entire ServletCacheInstance object, uncomment #DELETE=true and then run the deleteConfigProperties command.
create Property Not applicable
delete Property Not applicable

Optionally, we can use interactive mode with the commands:

  1. Create or edit a servlet cache properties file.

    1. Set ServletCacheInstance properties as needed.

      Open an editor on a ServletCacheInstance properties file. Modify the Environment Variables section to match your system and set any property value that needs to be changed. An example ServletCacheInstance properties file follows:

      #
      # Header
      #
      ResourceType=ServletCacheInstance
      ImplementingResourceType=ServletCacheInstance
      ResourceId=Cell=!{cellName}:CacheProvider=myCacheProvider:ServletCacheInstance=jndiName#myServletCacheJndiName
      #DELETE=true
      #
      
      #
      #Properties
      #
      diskCacheEntrySizeInMB=0 #integer,default(0)
      defaultPriority=1 #integer,required,default(1)
      useListenerContext=false #boolean,default(false)
      pushFrequency=1 #integer,default(1)
      memoryCacheSizeInMB=0 #integer,default(0)
      hashSize=1024 #integer,default(1024)
      providerType=null
      diskCacheSizeInEntries=0 #integer,default(0)
      diskOffloadLocation=null
      diskCacheSizeInGB=0 #integer,default(0)
      enableCacheReplication=false #boolean,default(false)
      cacheSize=2000 #integer,required,default(2000)
      jndiName=myServletCacheJndiName #required
      enableDiskOffload=false #boolean,required,default(false)
      replicationType=NONE #ENUM(PULL|PUSH|PUSH_PULL|NONE),default(NONE)
      category=null
      description=null
      #provider=CacheProvider#ObjectName(CacheProvider),readonly
      diskCacheCleanupFrequency=0 #integer,default(0)
      referenceable=null
      flushToDiskOnStop=false #boolean,default(false)
      diskCachePerformanceLevel=BALANCED #ENUM(LOW|BALANCED|HIGH|CUSTOM),default(BALANCED)
      name=myServletCache #required
      #
      EnvironmentVariablesSection
      #
      #
      #Environment Variables
      cellName=myCell04

    2. Run the applyConfigProperties command to create or change a servlet cache configuration.

      Running the applyConfigProperties command applies the properties file to the configuration. In this Jython example, the optional -reportFileName parameter produces a report named report.txt:

        AdminTask.applyConfigProperties(['-propertiesFileName myObjectType.props -reportFileName report.txt'])

  2. If you no longer need the servlet cache or an existing custom property, we can delete the entire servlet cache object or the custom property.

    • To delete the entire object, specify DELETE=true in the header section of the properties file and run the deleteConfigProperties command; for example:

        AdminTask.deleteConfigProperties('[-propertiesFileName myObjectType.props -reportFileName report.txt]')
    • To delete a custom property, specify only the property to be deleted in the properties file and then run the deleteConfigProperties command.


Results

We can use the properties file to manage the servlet cache object and its properties.

Save the changes to your configuration.


Related


Extracting properties files using wsadmin.sh
Create server, cluster, application, or authorization group objects using properties files and wsadmin scripting
Delete server, cluster, application, or authorization group objects using properties files


Reference:

PropertiesBasedConfiguration command group for AdminTask using wsadmin.sh


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