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Jiangjie Qin commented on KAFKA-2437: ------------------------------------- Possibly related to KAFKA-1155. I'm doing some further investigation. > Controller lost /controller zookeeper watcher. > ---------------------------------------------- > > Key: KAFKA-2437 > URL: https://issues.apache.org/jira/browse/KAFKA-2437 > Project: Kafka > Issue Type: Bug > Reporter: Jiangjie Qin > Assignee: Jiangjie Qin > > We see this issue occasionally. The symptom is that when /controller path got > deleted, the old controller does not resign so we end up having more than one > controller in the cluster (although the requests from controller with old > epoch will not be accepted). After checking zookeeper watcher by using wchp, > it looks the zookeeper session who created the /controller path does not have > a watcher on /controller. That causes the old controller not resigning. -- This message was sent by Atlassian JIRA (v6.3.4#6332)