Setting the cache size limit for the Content Manager cache

You can specify the upper limit of the cache size, as a percentage of the JVM heap size.

The default is 10%. Valid values are 0 to 100. Increasing the cache size can reduce the load on the Content Manager, allowing it to serve more distributed nodes. However, setting this value too high may cause out-of-memory errors in the dispatcher.

Setting the value to 0 (zero) disables the cache system-wide, sending all query requests directly to the Content Manager, which may degrade system performance. However, this is useful for comparing performance with and without the cache.

Procedure

  1. In IBM Cognos Administration, on the Status tab, click System.
  2. In the Scorecard pane, from the change view menu of the current view, click Services > Content Manager Cache.
    Tip: The current view is one of All servers, All server groups, All dispatchers, or Services.
  3. From the ContentManagerCacheService Actions menu, click Set properties.
  4. Click the Settings tab.
  5. In the Value column, change the number for Heap limit for the content manager cache service.
  6. Type the setting that you want, and click OK.
Parent topic: Content Manager Locations