Checkpoint attributes

Every AppEngine in a galaxy saves changes to values of specific attributes (checkpointed attributes) to disk at a pre-defined period of time. The more attributes defined as checkpointed by an AppEngine, the more data is written to disk. It is critical to set up this attribute to achieve the best performance for the system and the process.

In the event of a re-start of an AppEngine or after a failover, the system will read the checkpoint file to update the attribute values and start from there. The default value in the CheckpointPeriod attribute in the AppEngine is set to 0 as a safe way to checkpoint attributes every scan if the user is not aware of the functionality. However it is highly recommended to set this parameter to a higher value so that you can optimize CPU utilization and maintain data integrity in the event of a failure in the AppEngine.