[jira] [Created] (KAFKA-13418) Brokers disconnect intermittently with TLS1.3

["shylaja kokoori (Jira)" <ji...@apache.org>]

shylaja kokoori created KAFKA-13418:
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             Summary: Brokers disconnect intermittently with TLS1.3
                 Key: KAFKA-13418
                 URL: https://issues.apache.org/jira/browse/KAFKA-13418
             Project: Kafka
          Issue Type: Bug
          Components: clients
    Affects Versions: 2.8.0
            Reporter: shylaja kokoori


Using TLS1.3 (with JDK11) is causing a regression and an increase in inter-broker p99 latency, as mentioned by Yiming in [Kafka-9320|https://issues.apache.org/jira/browse/KAFKA-9320?focusedCommentId=17401818&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-17401818]. We tested this with Kafka 2.8.
The issue seems to be because of a renegotiation exception being thrown by 
{code:java}
read(ByteBuffer dst)
{code}
 & 
{code:java}
write(ByteBuffer src)
{code}
 in 
_clients/src/main/java/org/apache/kafka/common/network/SslTransportLayer.java_

This exception is causing the connection to close between the brokers before read/write is completed. In our internal experiments we have seen the p99 latency stabilize when we remove this exception.

Given that TLS1.3 does not support renegotiation, I would like to make it applicable just for TLS1.2.



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