[ https://issues.apache.org/jira/browse/KAFKA-5963?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Ismael Juma resolved KAFKA-5963. -------------------------------- Resolution: Auto Closed Thanks for the JIRA. Kafka 0.8.x is no longer supported and the issue has most likely been fixed since then. The Selector code has received a large number of fixes in the last 2+ years. > Null Pointer Exception on server > -------------------------------- > > Key: KAFKA-5963 > URL: https://issues.apache.org/jira/browse/KAFKA-5963 > Project: Kafka > Issue Type: Bug > Affects Versions: 0.8.1.1 > Reporter: Mudit Garg > > I am using Kafka 0.8.1.1. I am sending the logs to Kafka Streams. > Initially, everything works fine but after some time when the server is idle > and no logs are produced, we get *Null Pointer Exception on the server* and > *nothing gets pushed into Kafka*. > Following is the stack trace : > java.lang.NullPointerException > at org.apache.kafka.common.network.Selector.poll(Selector.java:187) > at > org.apache.kafka.clients.producer.internals.Sender.run(Sender.java:154) > at > org.apache.kafka.clients.producer.internals.Sender.run(Sender.java:101) > at java.lang.Thread.run(Thread.java:745) > I checked the code at > https://github.com/apache/kafka/blob/0.8.1.1/clients/src/main/java/org/apache/kafka/common/network/Selector.java#L187 > Looks like transmissions object is null. -- This message was sent by Atlassian JIRA (v6.4.14#64029)