pnowojski commented on a change in pull request #18989:
URL: https://github.com/apache/flink/pull/18989#discussion_r820521747
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File path:
flink-state-backends/flink-statebackend-changelog/src/main/java/org/apache/flink/state/changelog/PeriodicMaterializationManager.java
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@@ -104,7 +105,7 @@ public void start() {
LOG.info("Task {} starts periodic materialization", subtaskName);
- scheduleNextMaterialization();
+ scheduleNextMaterialization(new Random().nextInt((int)
periodicMaterializeDelay));
Review comment:
I think it would be better to have this logic deterministic based on for
example some combination of uid, task id, subtask id. It would make the
behaviour less surprisingly to the users. As it is now, for example due to some
unrelated failover, job might start miss behaving due to a random chance and
debugging/reproducing issues might be impossible.
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