ajothomas commented on code in PR #1616:
URL: https://github.com/apache/samza/pull/1616#discussion_r923695705
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samza-core/src/main/scala/org/apache/samza/system/SystemConsumers.scala:
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@@ -237,6 +233,13 @@ class SystemConsumers (
}
}
+ def drain(): Unit = {
+ if (!isDraining) {
+ isDraining = true;
+ info("SystemConsumers is set to drain mode.")
+ writeDrainControlMessageToSspQueue()
Review Comment:
New envelopes will be added to SystemConsumers' in-memory queue from the
registered consumers whenever refresh is called. When in drain mode, refresh
will not add new messages from the consumers.
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