Configuring Project Hierarchy Cache in Services Settings

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If you are running services and P6 on the same server, you should keep the defaults. If you want to apply the cache immediately, you should set the Frequency low. Remember that if the server is actively applying the cache, all users will experience delays in the application.

To set your project hierarchy cache settings:

  1. Open the P6 Administrator application.
  2. In the Configurations tab, expand your configuration.
  3. Expand Services/Project Hierarchy Cache.
    1. In the Cache Policy field, select the cache policy to use. The cache policy determines how much data is in the cache and which data to remove to reclaim memory.

      You can select one of the following:

      • FIFO First In First Out-projects are cleared from the cache in the same order they were added to memory.
      • LRU Least Recently Used projects are cleared from the cache before more recently used ones.
      • JVMM Java Virtual Machine Managed uses soft references to cache elements; memory used by soft references is reclaimed by the JVM as required.
      • PRR Projects are selected at random to be cleared from cache.
      • PRFIFO Periodic Refresh First In First Out is the same as FIFO, except policy is enforced based on MaintenanceFrequency.
      • PRLRU Periodic Refresh Least Recently Used is the same as LRU, except policy is enforced based on MaintenanceFrequency.
      • PRCC Periodic Refresh Clear Cache ignores CacheLimit to flush the entire cache, based on MaintenanceFrequency.
    2. In the Cache Limit field, enter the maximum number of projects stored in memory.

      The default is 5000.

      Enter anything from 1000-30000.

    3. In the Maintenance Frequency field, enter the frequency for applying the specified cache policy. If you apply the cache policy, the system can reclaim memory from the cache.

      The default is 5h.

      Enter anything from 1m-24d.

    4. In the Enable WBS Hierarchy Preload field, select true or false.

      Oracle recommends keeping this setting true for most situations since security checks rely on the WBS Hierarchy cache preload.

      Make this setting false only if you are loading project details (for example, an API request) and the preloading cache with WBS Hierarchy details is taking a lot of time.

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Last Published Wednesday, July 29, 2015

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