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cobolbaby avatar cobolbaby commented on September 16, 2024

It seems that the time of commit offset will exceed the default timeout configuration. How much impact will the authentication operation have on performance?

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cobolbaby avatar cobolbaby commented on September 16, 2024

Problems caused by host dns.

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notizklotz avatar notizklotz commented on September 16, 2024

I observed the same problem and I could resolve it by advertising the brokers using fully qualified domain names.

If the brokers are avertised by IP adresses this causes a reverse DNS lookup via java.net.InetAddress#getHostName() which is slow on some environments. The relevant code is here: https://github.com/apache/kafka/blob/3.3.1/clients/src/main/java/org/apache/kafka/common/network/SaslChannelBuilder.java#L231

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