TRS Delta Monitoring Task (DMT) Troubleshooting

The objective of page is to provide an overview of the TRS Delta Monitoring Task (DMT) and also include troubleshooting steps.

What is the Delta Monitoring Task (DMT):

The DMT is a Java process within ERM for log-based TRS - the purpose is to query for and process three kinds of change (in this order) which update the TRS

• Apply compensating actions resulting from archive/restore.
• Process changes in durable log (e.g. user makes a change to a requirement).
• Container recovery.

The DMT is executed every 2 seconds (non configurable). The DMT gives Administrators a way to determine how up to date TRS processing is. DMT can be monitored by Administrators in the Tracked Resource Set monitoring page which shows the Watermark (How up to date the TRS processing is – this was never visible in event-based TRS

• It's normal for the DMT to be a few seconds behind
• It's normal for the DMT to get farther behind when there's a lot of things to process – so this isn't necessarily a problem until it continues for a long time, perhaps >15 minutes

https://<JazzServerName>/rm/admin --> Debug  --> Tracked Resource Set

Defines the “currency” of the TRS.

• Trackd_Resource_Set_Status.png:
  

DMT Troubleshooting

TBD

DMT Performance

How to determine what the DMT is processing:

TBD

Related topics: Deployment web home, Deployment web home

External links:

• IBM

Additional contributors: TWikiUser, TWikiUser