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From "Cesar Stuardo (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (ZOOKEEPER-2888) Reconfig Causes Inconsistent Configuration file among the nodes
Date Fri, 01 Sep 2017 19:59:00 GMT

     [ https://issues.apache.org/jira/browse/ZOOKEEPER-2888?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Cesar Stuardo updated ZOOKEEPER-2888:
    Attachment: ZK-2888.pdf

> Reconfig Causes Inconsistent Configuration file among the nodes
> ---------------------------------------------------------------
>                 Key: ZOOKEEPER-2888
>                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-2888
>             Project: ZooKeeper
>          Issue Type: Bug
>          Components: quorum
>    Affects Versions: 3.5.3
>            Reporter: Cesar Stuardo
>         Attachments: ZK-2888.pdf
> When we run our Distributed system Model Checking (DMCK) in ZooKeeper v3.5.3
> by following the workload (complete details attached):
> 1. start a 5 node cluster (all nodes know each other).
> 2. wait for the cluster to reach a steady state.
> 3. issue reconfig command which does not add or remove nodes but changes all the ports
of the existing cluster (no role change either). 
> We observer that in some situations, one of the followers my end up isolated since the
other nodes change their ports and end up setting up new connections. The consequence is similar
to the one at [ZK-2865|https://issues.apache.org/jira/browse/ZOOKEEPER-2865?jql=] but the
scenario is different.
> We provide further details in the attached document.

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