dear all, My Kafka consumer program was stopped and at that time I was trying to get some logs from Kafka broker and encountered this
// xxx.xxx.xxx.xxx is host containing Kafka consumer > // ... > [2016-01-04 12:06:21,676] ERROR Closing socket for /xxx.xxx.xxx.xxx > because of error (kafka.network.Processor) > java.lang.NullPointerException > at kafka.network.Processor.run(SocketServer.scala:404) > at java.lang.Thread.run(Thread.java:745) > [2016-01-04 12:06:21,685] INFO Closing socket connection to > /xxx.xxx.xxx.xxx. (kafka.network.Processor) > [2016-01-04 12:06:21,689] INFO Closing socket connection to > /xxx.xxx.xxx.xxx. (kafka.network.Processor) > [2016-01-04 12:06:21,693] INFO Closing socket connection to > /xxx.xxx.xxx.xxx. (kafka.network.Processor) > [2016-01-04 12:06:21,697] INFO Closing socket connection to > /xxx.xxx.xxx.xxx. (kafka.network.Processor) > [2016-01-04 12:06:21,701] INFO Closing socket connection to > /xxx.xxx.xxx.xxx. (kafka.network.Processor) > [2016-01-04 12:06:21,705] INFO Closing socket connection to > /xxx.xxx.xxx.xxx. (kafka.network.Processor) > [2016-01-04 12:06:21,712] INFO Closing socket connection to > /xxx.xxx.xxx.xxx. (kafka.network.Processor) > [2016-01-04 12:06:21,715] INFO Closing socket connection to > /xxx.xxx.xxx.xxx. (kafka.network.Processor) > // ... but unfortunately I can't provide the consumer program log. Is there any hypotheses / explanation about this log? The running Kafka version is 0.8.2 and the consumer used is SimpleConsumer. Thank you, -- Muqtafi Akhmad Software Engineer Traveloka
