guozhangwang commented on code in PR #12244:
URL: https://github.com/apache/kafka/pull/12244#discussion_r889350182
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clients/src/main/java/org/apache/kafka/clients/consumer/internals/ConsumerCoordinator.java:
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@@ -553,8 +554,8 @@ public boolean poll(Timer timer, boolean waitForJoinGroup) {
// requests result in polls returning immediately, causing a tight
loop of polls. Without
// the wakeup, poll() with no channels would block for the
timeout, delaying re-connection.
// awaitMetadataUpdate() in ensureCoordinatorReady initiates new
connections with configured backoff and avoids the busy loop.
- if (coordinatorUnknownAndUnready(timer)) {
- return false;
+ if (metadata.updateRequested() &&
!client.hasReadyNodes(timer.currentTimeMs())) {
Review Comment:
ack
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