Description
[2017-07-12 21:56:39,964] ERROR Processor got uncaught exception. (kafka.network.Processor)
java.lang.NullPointerException
at kafka.network.Processor$$anonfun$processCompletedReceives$1.apply(SocketServer.scala:490)
at kafka.network.Processor$$anonfun$processCompletedReceives$1.apply(SocketServer.scala:487)
at scala.collection.Iterator$class.foreach(Iterator.scala:727)
at scala.collection.AbstractIterator.foreach(Iterator.scala:1157)
at scala.collection.IterableLike$class.foreach(IterableLike.scala:72)
at scala.collection.AbstractIterable.foreach(Iterable.scala:54)
at kafka.network.Processor.processCompletedReceives(SocketServer.scala:487)
at kafka.network.Processor.run(SocketServer.scala:417)
at java.lang.Thread.run(Thread.java:745)
Anyone knows the cause of this exception? What's the effect of it?
When this exception occurred, the log also showed that the broker was frequently shrinking ISR to itself. Are these two things interrelated?
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