Robert P. Thille created ZOOKEEPER-2184:
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Summary: Zookeeper Client should re-resolve hosts when connection
attempts fail
Key: ZOOKEEPER-2184
URL: https://issues.apache.org/jira/browse/ZOOKEEPER-2184
Project: ZooKeeper
Issue Type: Bug
Components: java client
Affects Versions: 3.5.0, 3.4.6
Environment: Ubuntu 14.04 host, Docker containers for Zookeeper & Kafka
Reporter: Robert P. Thille
Testing in a Docker environment with a single Kafka instance using a single
Zookeeper instance. Restarting the Zookeeper container will cause it to receive
a new IP address. Kafka will never be able to reconnect to Zookeeper and will
hang indefinitely. Updating DNS or /etc/hosts with the new IP address will not
help the client to reconnect as the zookeeper/client/StaticHostProvider
resolves the connection string hosts at creation time and never re-resolves.
A solution would be for the client to notice that connection attempts fail and
attempt to re-resolve the hostnames in the connectString.
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