Qiang Zhao created KAFKA-6783:
---------------------------------

             Summary: 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
             Fix For: 1.2.0



{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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