CPU Usage Spike to 100% when network connection is lost

Hi Kafka Dev team,

I see my CPU spike to 100% when network connection is lost for while. It
seems network IO thread are very busy logging following error message. Is
this expected behavior ?

2014-09-17 14:06:16.830 [kafka-producer-network-thread] ERROR
org.apache.kafka.clients.producer.internals.Sender - Uncaught error in
kafka producer I/O thread:

java.lang.IllegalStateException: No entry found for node -2

at org.apache.kafka.clients.ClusterConnectionStates.nodeState(
ClusterConnectionStates.java:110)

at org.apache.kafka.clients.ClusterConnectionStates.disconnected(
ClusterConnectionStates.java:99)

at org.apache.kafka.clients.NetworkClient.initiateConnect(
NetworkClient.java:394)

at org.apache.kafka.clients.NetworkClient.maybeUpdateMetadata(
NetworkClient.java:380)

at org.apache.kafka.clients.NetworkClient.poll(NetworkClient.java:174)

at org.apache.kafka.clients.producer.internals.Sender.run(Sender.java:175)

at org.apache.kafka.clients.producer.internals.Sender.run(Sender.java:115)

at java.lang.Thread.run(Thread.java:744)

Thanks,

Bhavesh