[jira] [Commented] (KAFKA-6783) consumer poll(timeout) blocked infinitely when no available bootstrap server

["ASF GitHub Bot (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/KAFKA-6783?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16435724#comment-16435724 ] 

ASF GitHub Bot commented on KAFKA-6783:
---------------------------------------

koqizhao opened a new pull request #4860: KAFKA-6783/6784: consumer poll(timeout) blocked infinitely when no available bootstrap server, FindCoordinatorResponse cannot be cast to FetchResponse
URL: https://github.com/apache/kafka/pull/4860
 
 
   KAFKA-6783: consumer poll(timeout) blocked infinitely when no available bootstrap server
   KAFKA-6784: FindCoordinatorResponse cannot be cast to FetchResponse

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> consumer poll(timeout) blocked infinitely when no available bootstrap server
> ----------------------------------------------------------------------------
>
>                 Key: KAFKA-6783
>                 URL: https://issues.apache.org/jira/browse/KAFKA-6783
>             Project: Kafka
>          Issue Type: Bug
>          Components: clients
>    Affects Versions: 1.1.0
>            Reporter: Qiang Zhao
>            Priority: Major
>              Labels: features
>             Fix For: 1.2.0
>
>   Original Estimate: 48h
>  Remaining Estimate: 48h
>
> {code:java}
>     @Test
>     public void testPollWithAllBootstrapServersDown() throws Exception {
>         ExecutorService executor = Executors.newSingleThreadExecutor();
>         try {
>             final long pollTimeout = 1000;
>             final AtomicBoolean pollComplete = new AtomicBoolean();
>             executor.submit(new Runnable() {
>                 @Override
>                 public void run() {
>                     Properties props = new Properties();
>                     props.put(ConsumerConfig.BOOTSTRAP_SERVERS_CONFIG, "localhost:29092");
>                     try (KafkaConsumer<byte[], byte[]> consumer = newConsumer(props)) {
>                         consumer.subscribe(Arrays.asList(topic));
>                         try {
>                             consumer.poll(pollTimeout);
>                         } catch (Exception ex) {
>                             ex.printStackTrace();
>                         } finally {
>                             pollComplete.set(true);
>                         }
>                     }
>                 }
>             });
>             Thread.sleep(pollTimeout * 2);
>             Assert.assertTrue("poll timeout not work when all servers down", pollComplete.get());
>         } finally {
>             executor.shutdown();
>         }
>     }
> {code}



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