Jason Gustafson created KAFKA-6672:
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             Summary: ConfigCommand failing to alter configs
                 Key: KAFKA-6672
                 URL: https://issues.apache.org/jira/browse/KAFKA-6672
             Project: Kafka
          Issue Type: Bug
            Reporter: Jason Gustafson
            Assignee: Jason Gustafson

Seen a few system test failures with the following error:
{code:java}
RemoteCommandError: ubuntu@worker7: Command 
'/opt/kafka-dev/bin/kafka-configs.sh --zookeeper worker6:2181 --entity-name 
kafka-broker --entity-type users --alter --add-config 
SCRAM-SHA-256=[password=broker-secret]' returned non-zero exit status 1. Remote 
error message: 
Error while executing config command with args [Ljava.lang.String;@52363f8d
org.apache.zookeeper.KeeperException$NoNodeException: KeeperErrorCode = NoNode 
for /config/changes/config_change_
at org.apache.zookeeper.KeeperException.create(KeeperException.java:111)
at org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
at kafka.zookeeper.AsyncResponse.maybeThrow(ZooKeeperClient.scala:472)
at 
kafka.zk.KafkaZkClient.createConfigChangeNotification(KafkaZkClient.scala:292)
at 
kafka.zk.AdminZkClient.kafka$zk$AdminZkClient$$changeEntityConfig(AdminZkClient.scala:393)
at 
kafka.zk.AdminZkClient.changeUserOrUserClientIdConfig(AdminZkClient.scala:323)
at kafka.zk.AdminZkClient.changeConfigs(AdminZkClient.scala:287)
at kafka.admin.ConfigCommand$.alterConfig(ConfigCommand.scala:133)
at kafka.admin.ConfigCommand$.processCommandWithZk(ConfigCommand.scala:100)
at kafka.admin.ConfigCommand$.main(ConfigCommand.scala:77)
at kafka.admin.ConfigCommand.main(ConfigCommand.scala){code}

This may have been failing for a while and was only exposed after KAFKA-6656.



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