lukecwik commented on a change in pull request #11911:
URL: https://github.com/apache/beam/pull/11911#discussion_r442969338
##########
File path:
sdks/java/harness/src/main/java/org/apache/beam/fn/harness/control/BeamFnControlClient.java
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@@ -159,6 +159,16 @@ public void processInstructionRequests(Executor executor)
} catch (Error e) {
sendErrorResponse(e);
throw e;
+ } catch (IllegalStateException e) {
Review comment:
I would suggest sending back an empty successful response instead of
throwing an error. Empty progress/split responses are no-ops from the runners
side.
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