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Kafka >> mail # user >> Failed to start preferred replica election


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Failed to start preferred replica election
I have a cluster of 3 kafka servers. Replication factor is 3. Two out of 3
servers were shutdown and traffic was sent to only one server that was up.
I brought second host up and it says according to logs that server has
started.

I ran ./kafka-list-topic.sh --zookeeper <host> Still was showing leaders
are not distributed. Then ran
kafka-preferred-replica-election.sh which exited with error:

kafka.common.AdminCommandFailedException: Admin command failed
        at
kafka.admin.PreferredReplicaLeaderElectionCommand.moveLeaderToPreferredReplica(PreferredReplicaLeaderElectionCommand.scala:119)
        at
kafka.admin.PreferredReplicaLeaderElectionCommand$.main(PreferredReplicaLeaderElectionCommand.scala:60)
        at
kafka.admin.PreferredReplicaLeaderElectionCommand.main(PreferredReplicaLeaderElectionCommand.scala)

Would you please give suggestion what have caused the exception and how to
recover from it?

Thanks so much in advance,
Vadim