AmatyaAvadhanula commented on code in PR #13223:
URL: https://github.com/apache/druid/pull/13223#discussion_r998921580
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indexing-service/src/main/java/org/apache/druid/indexing/seekablestream/supervisor/SeekableStreamSupervisor.java:
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@@ -1950,6 +1950,45 @@ public Boolean
apply(SeekableStreamIndexTaskRunner.Status status)
// make sure the checkpoints are consistent with each other and with the
metadata store
verifyAndMergeCheckpoints(taskGroupsToVerify.values());
+
+ // A pause from the previous Overlord's supervisor, immediately before
leader change
+ // can lead to tasks being in a state where they are active but do not
read.
+ // If this is the first run, resume all existing active tasks to be safe
+ if (getState().isFirstRunOnly()) {
+ Map<String, ListenableFuture<Boolean>> activeTaskToResumeFutureMap = new
HashMap<>();
Review Comment:
It was supposed to mean a map from the set of activeTasks to their
resumeFutures.
tasksToResume does seem simpler, I'll make the change
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