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Support Article

Slow query on Event tables

SA-81332

Summary



Performance degrades when querying MKT_EVENT_P711 and MKT_EVENT_P713 from the DF_Wait dataflow.

When the Outbound campaign's (PR-xxx) dataflow is running and a DF_Wait dataflow starts, the dataflow nodes consume 100% CPU and the outbound Program Run (PR) performance degrades. Additionally, the DF_wait dataflow takes more than 20 minutes to process the records (1 to 10).


Error Messages



Not Applicable


Steps to Reproduce



Run an event Campaign.


Root Cause



A defect in Pegasystems’ code or rules.
The DF_Wait dataflow generates queries with the Where clause on CustomerID because the Event dataset (for the campaign output table) is keyed on the CustomerID property. However, there are no indexes on the CustomerID column when the EVENT table is created.



Resolution



Apply HFix-53539.
Suggest Edit

Published August 19, 2019 - Updated December 2, 2021

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