CA Data Protection 15.2 event importers displays symptoms of a slow ingestion with reports of rates dropping from 8 msg/sec in Data Protection 14.5 to 1 msg/sec in Data Protection 15.2. This has a knock on effect of creating a backlog of events in the source repository (i.e. MS Exchange). This behavior is accompanied by errors like the one below recorded in the activity log:
Nov 24, 2018 17:34:53 PM NT AUTHORITY\SYSTEM E1362 The Analysis thread stalled while processing email with subject 'Test Message' from sender '/O=UNIPRAXIS/OU=EXCHANGE ADMINISTRATIVE GROUP (FYDIBOHF23SPDLT)/CN=RECIPIENTS/CN=ORVILLEP149'
This is a programmatic issue related to mulit-threading.
Orchestria, Orchestria APM, Orchestria EPM, CA DLP and CA DataMinder are all products now known as CA Data Protection.