Support Article
Errors on restarting server and performing shutdown of nodes
Summary
Errors occur in the logs on restarting server or performing an abrupt shutdown of the server or nodes.
Error Messages
Log errors
Interrupted by service shutdown
Interrupted by unexpected service shutdown
Steps to Reproduce
Scenario 1
Perform a graceful shutdown of the DataFlow node during an on-going campaign program run.
Scenario 2
Perform an abrupt shutdown of the DataFlow node during an on-going campaign program run.
Root Cause
This behavior is as per the Pega product design.
Resolution
Here’s the explanation for the reported behavior:
While performing a shutdown of a node gracefully, the DNode DataFlow service (Shutdown-function) marks the DataFlow runs with the message, 'Interrupted by service shutdown'. Hence, the 'Interrupted by service shutdown' error message occurs in the logs.
The DNode DataFlow service (Start-up function) at the time of PRPC startup causes the 'Interrupted by unexpected service shutdown' error to occur in the log.This occurs when a stale or running assisgnments (with running status) are present in the data base for the data flow run, which is the result of abrupt or kill -9 type of server shutdown.
Published July 31, 2020 - Updated December 2, 2021
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