[jira] [Commented] (ZOOKEEPER-2554) reconfig can not add new server as observer

["Arshad Mohammad (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/ZOOKEEPER-2554?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15465723#comment-15465723 ] 

Arshad Mohammad commented on ZOOKEEPER-2554:
--------------------------------------------

ZOOKEEPER-2554-01.patch is test code  patch to reproduce the scenario.

> reconfig can not add new server as observer
> -------------------------------------------
>
>                 Key: ZOOKEEPER-2554
>                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-2554
>             Project: ZooKeeper
>          Issue Type: Bug
>          Components: server
>    Affects Versions: 3.5.0, 3.5.1, 3.5.2
>            Reporter: Arshad Mohammad
>            Assignee: Arshad Mohammad
>            Priority: Critical
>         Attachments: ZOOKEEPER-2554-01.patch
>
>
> Try to add new observer server using reconfig API, server gets added as participant.
> STEPS:
> # create 3 node cluster.
> {code}
> server.0=127.0.0.1:11223:11224:participant;127.0.0.1:11222
> server.1=127.0.0.1:11226:11227:participant;127.0.0.1:11225
> server.2=127.0.0.1:11229:11230:participant;127.0.0.1:11228
> {code}
> # Suppose the 2 is the leader in the above cluster. Configure the new server as
> {code}
> server.2=127.0.0.1:11229:11230:participant;127.0.0.1:11228
> server.3=127.0.0.1:11232:11233:observer;127.0.0.1:11231
> {code}
> # Connect to 1 and execute the reconfig command
> {code}
> zkClient.reconfig("server.3=127.0.0.1:11232:11233:observer;127.0.0.1:11231", null, null, -1, null, null);
> {code}
> # Verify sever 3. It was supposed to run as observer but it is running as participant



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