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https://issues.apache.org/jira/browse/RANGER-4520?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17910018#comment-17910018
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Sanket Shelar commented on RANGER-4520:
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ranger-2.6 :
https://github.com/apache/ranger/commit/f8444190679d9c4276a64ba350f6e1ffdca7f3a1
> Both usersync/tagsync instances becoming active and syncing users/tags
> ----------------------------------------------------------------------
>
> Key: RANGER-4520
> URL: https://issues.apache.org/jira/browse/RANGER-4520
> Project: Ranger
> Issue Type: Bug
> Components: Ranger
> Affects Versions: 3.0.0, 2.6.0
> Reporter: suja s
> Assignee: Sanket Shelar
> Priority: Major
> Fix For: 3.0.0
>
> Attachments: 0001-RANGER-4520.patch, 0002-RANGER-4520.patch,
> 0003-RANGER-4520.patch
>
>
> Both usersync/tagsync instances becoming active and syncing users/tags in the
> following scenario
> Scenario:
> Bring up 2 instances of UserSync so that one is active and other is passive
> Cluster has 3 zk instances, stop 2 zk servers so that there is no quorum
> Both usersync instances fail to establish Zk connection
> Start both zk servers
> Both usersync instances have transitioned to active and started performing
> usersync
> Same issue exists for tagsync also
> Test:
> Add user u1 to host1
> Add user u2 to host2
> Both users are synced and available on ranger admin side.
> Usersync audits show details of both users synced
> EXPECTED BEHAVIOUR:
> In case of usersync/tagsync running in HA mode, there should be only 1
> instance active at any point of time
> CURRENT BEHAVIOUR:
> After zk goes down and is back functional, more than 1 usersync/tagsync
> instance becoming active
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