Broker hangs all of a sudden.

[Jordan Sheinfeld <jo...@convertmedia.com>]

Hi All,

This really looks like a bug to me.
I'm running Kafka 2.11-0.9.0.1.
Running 2 brokers, 3 consumers.
On a day to day basis, everything is working smoothly.
All of a sudden, out of nowhere one of the brokers hangs and the producers
lack to send messages to it, since it is the leader of some partitions
without replication to other brokers (replication-factor = 1) , the strange
thing is that it may happen not under heavy load.
In ZooKeeper I see only the working node registered under /broker/ids, the
hanged one is not there.
Restart of the node fixes everything.

Logs of the stuck node can be found at:
https://dl.dropboxusercontent.com/u/25559686/broker.rar

The time it was stuck is from around 08:41 , until the broker was restarted
at 09:12.

Any help is highly appreciated.

Best Regards,
 Jordan.