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https://issues.apache.org/jira/browse/KAFKA-6510?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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John Chu updated KAFKA-6510:
----------------------------
Summary: WARN: Failed to send SSL Close message java.io.IOException:
Unexpected status returned by SSLEngine.wrap, expected CLOSED, received OK.
(was: WARN: Fail to send SSL Close message)
> WARN: Failed to send SSL Close message java.io.IOException: Unexpected status
> returned by SSLEngine.wrap, expected CLOSED, received OK.
> ----------------------------------------------------------------------------------------------------------------------------------------
>
> Key: KAFKA-6510
> URL: https://issues.apache.org/jira/browse/KAFKA-6510
> Project: Kafka
> Issue Type: Bug
> Affects Versions: 0.11.0.0
> Reporter: John Chu
> Priority: Major
>
> I have a thread which once in a while is going to list the topics on the
> Message Hub. But once in a while, I am getting a :Failed to send SSL Close
> message.
> Any ideas?
> Noticed there is another similar defect open:
> https://issues.apache.org/jira/browse/KAFKA-3702
> Not sure if this is the same as that issue. .
> Also another post from grokbase:
> [http://grokbase.com/t/kafka/users/1653bm0a02/warn-failed-to-send-ssl-close-message]
>
> {code:java}
> KafkaConsumer<String, String> consumer = new
> KafkaConsumer<>(getConsumerConfiguration());
> try{
> Map<String, List<PartitionInfo>> topics = consumer.listTopics();
> return new ArrayList<String>(topics.keySet());
> }
> finally{
> if (consumer != null){
> consumer.close();
> }
> }
> {code}
> I am getting the warning from *consumer.close*.
> The configuration of the consumer:
> * sasl.mechanism = PLAIN
> * security.protocol = SASL_SSL
> * group.id = consumer1
> * ssl.enabled.protocol = TLSv1.2
> * ssl.endpoint.identification.algorithm = HTTPS
> * ssl.protocol = TLSv1.2
> * sasl.jaas.config = org.apache.kafka.common.security.plain.PlainLoginModule
> required username="USERNAME" password="PASSWORD";
> {quote}[WARN ] 2018-01-25 20:12:23.204 [ClusterChannelMonitorTaskThread]
> org.apache.kafka.common.network.SslTransportLayer {} - Failed to send SSL
> Close message java.io.IOException: Unexpected status returned by
> SSLEngine.wrap, expected CLOSED, received OK. Will not send close message to
> peer. at
> org.apache.kafka.common.network.SslTransportLayer.close(SslTransportLayer.java:158)
> [kafka-clients-0.11.0.0.jar:?] at
> org.apache.kafka.common.utils.Utils.closeAll(Utils.java:663)
> [kafka-clients-0.11.0.0.jar:?] at
> org.apache.kafka.common.network.KafkaChannel.close(KafkaChannel.java:59)
> [kafka-clients-0.11.0.0.jar:?] at
> org.apache.kafka.common.network.Selector.doClose(Selector.java:582)
> [kafka-clients-0.11.0.0.jar:?] at
> org.apache.kafka.common.network.Selector.close(Selector.java:573)
> [kafka-clients-0.11.0.0.jar:?] at
> org.apache.kafka.common.network.Selector.close(Selector.java:539)
> [kafka-clients-0.11.0.0.jar:?] at
> org.apache.kafka.common.network.Selector.close(Selector.java:250)
> [kafka-clients-0.11.0.0.jar:?] at
> org.apache.kafka.clients.NetworkClient.close(NetworkClient.java:505)
> [kafka-clients-0.11.0.0.jar:?] at
> org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient.close(ConsumerNetworkClient.java:439)
> [kafka-clients-0.11.0.0.jar:?] at
> org.apache.kafka.clients.ClientUtils.closeQuietly(ClientUtils.java:71)
> [kafka-clients-0.11.0.0.jar:?] at
> org.apache.kafka.clients.consumer.KafkaConsumer.close(KafkaConsumer.java:1613)
> [kafka-clients-0.11.0.0.jar:?] at
> org.apache.kafka.clients.consumer.KafkaConsumer.close(KafkaConsumer.java:1573)
> [kafka-clients-0.11.0.0.jar:?] at
> org.apache.kafka.clients.consumer.KafkaConsumer.close(KafkaConsumer.java:1549)
> [kafka-clients-0.11.0.0.jar:?] at
> {quote}
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