[GitHub] [pulsar] tisonkun commented on issue #13954: Flaky-test: PulsarSinkE2ETest.shutdown(org.apache.pulsar.io.PulsarSinkE2ETest)

[GitBox <gi...@apache.org>]

tisonkun commented on issue #13954:
URL: https://github.com/apache/pulsar/issues/13954#issuecomment-1157622153

   Could you verify whether this exception occurs while it suffers a ZK disconnection? If there is a period of disconnection, it's possible that the op success on server but fail to response, and since we retry on CONNECTIONLOSS then it can be this case. #13892 can be in such situation, cc @MichalKoziorowski-TomTom
   
   ```java
   // ZKMetadataStore#batchOperation 8914b84115bacaf38fe892d66533c1b70431acbf
                   if (results == null) {
                       Code code = Code.get(rc);
                       if (code == Code.CONNECTIONLOSS) {
                           // There is the chance that we caused a connection reset by sending or requesting a batch
                           // that passed the max ZK limit. Retry with the individual operations
                           executor.schedule(() -> {
                               ops.forEach(o -> batchOperation(Collections.singletonList(o)));
                           }, 100, TimeUnit.MILLISECONDS);
                       } else {
                           MetadataStoreException e = getException(code, path);
                           ops.forEach(o -> o.getFuture().completeExceptionally(e));
                       }
                       return;
                   }
   ```


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