SR-D89428 · Issue 550393
Data Flow StartTime uses locale timezone
Resolved in Pega Version 8.4.1
The start time of the dataflow was displayed in GMT instead of the operator locale timezone. This has been corrected.
SR-D89643 · Issue 548293
Old Tumbling Time data in event strategies given TTL for cleanup
Resolved in Pega Version 8.4.1
Old Tumbling Time data keys in event strategies were not being cleaned up, causing Cassandra timeouts after the dataflow run had been running for several months. The longer the dataflow was running using standard compaction, the more the data was potentially spread out across SSTables and the slower it became. This has been resolved by adding a 'time to live' value for tumbling time windows, and event strategies has been switched to use leveled compaction by default.