walterddr commented on code in PR #9582:
URL: https://github.com/apache/pinot/pull/9582#discussion_r996227427
##########
pinot-query-runtime/src/main/java/org/apache/pinot/query/runtime/operator/MailboxReceiveOperator.java:
##########
@@ -79,7 +79,12 @@ public
MailboxReceiveOperator(MailboxService<Mailbox.MailboxContent> mailboxServ
singletonInstance = serverInstance;
}
}
- _sendingStageInstances = Collections.singletonList(singletonInstance);
+ if (singletonInstance == null) {
+ // TODO: fix WorkerManager assignment, this should not happen if we
properly assign workers.
+ _sendingStageInstances = Collections.emptyList();
+ } else {
+ _sendingStageInstances = Collections.singletonList(singletonInstance);
+ }
Review Comment:
@ankitsultana ^
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