KB-XXXX Process Design and Groups engines constantly checkpointing and filling up disk space

Symptoms

For a given interval of time, both the Process Design KDB & Personalization KDBs are checkpointing often, causing issues with disk space. For example:

2018-02-02 20:30:18,436 [KomodoEventBus-29] INFO  com.appian.komodo.engine.checkpoint.AutoCheckpointer - Automatic checkpointing enabled for channels, triggered after every 100000 transactions or every 22 hours.
2018-02-02 20:30:18,590 [KomodoEventBus-32] INFO  com.appian.komodo.engine.checkpoint.AutoCheckpointer - Automatic checkpointing enabled for notifications-email, triggered after every 100000 transactions or every 22 hours.
2018-02-02 20:30:18,700 [KomodoEventBus-58] INFO  com.appian.komodo.engine.checkpoint.AutoCheckpointer - Automatic checkpointing enabled for forums, triggered after every 100000 transactions or every 22 hours.
2018-02-02 20:30:18,859 [KomodoEventBus-8] INFO  com.appian.komodo.engine.checkpoint.AutoCheckpointer - Automatic checkpointing enabled for download-stats, triggered after every 100000 transactions or every 22 hours.

Cause

The following settings in custom.properties ,if not adjusted to the environment needs/usage, can effect the increase in disk space:

ServiceManager.checkpoint.automatic.boundary.replay

Setting used to checkpoint after a given time period. The default unit is milliseconds unless you specify Ex) 30 minutes

ServiceManager.checkpoint.automatic.boundary.transaction

Setting used to checkpoint after a given number of transactions.

Action

Update custom.properties with the appropriate time unit for the ServiceManager.checkpoint.automatic.boundary.replay setting , increase the transaction boundary for the ServiceManager.checkpoint.automatic.boundary.transaction setting, and restart ServiceManager for the changes to take affect.

Affected Versions

This article applies to Appian 16.3 and later.

Last Reviewed: February 2018