Samrat002 commented on code in PR #27921:
URL: https://github.com/apache/flink/pull/27921#discussion_r3098934664
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flink-runtime/src/main/java/org/apache/flink/runtime/scheduler/adaptive/Executing.java:
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@@ -300,6 +309,69 @@ private void initializeFailedCheckpointCountdownIfUnset() {
}
}
+ /**
+ * Actively triggers a checkpoint to expedite rescaling. Without this, the
scheduler would
+ * passively wait for the next periodic checkpoint, which could delay
rescaling significantly
+ * when checkpoint intervals are large.
+ *
+ * <p>Guard conditions:
+ *
+ * <ul>
+ * <li>Checkpointing must be configured
+ * <li>Parallelism must have actually changed
+ * <li>No checkpoint must be currently in progress or being triggered
+ * </ul>
+ */
+ private void triggerCheckpointForRescale() {
Review Comment:
added tests PTAL
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