tisonkun commented on code in PR #20242:
URL: https://github.com/apache/pulsar/pull/20242#discussion_r1186971096
##########
pulsar-client/src/main/java/org/apache/pulsar/client/impl/ConsumerImpl.java:
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@@ -2153,9 +2153,14 @@ private CompletableFuture<Void> seekAsyncInternal(long
requestId, ByteBuf seek,
MessageIdAdv originSeekMessageId = seekMessageId;
seekMessageId = (MessageIdAdv) seekId;
- duringSeek.set(true);
+
+ if (!duringSeek.compareAndSet(false, true)) {
+ log.warn("[{}][{}] Attempting to seek operation that is already in
progress, cancelling {}",
+ topic, subscription, seekBy);
+ seekFuture.cancel(true);
Review Comment:
After a closer look `f.cancel(true)` is the same as
`f.completeExceptionally(new CancellationException())`. So either way should be
OK.
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