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https://issues.apache.org/jira/browse/KUDU-2962?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Bankim Bhavsar updated KUDU-2962:
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Code Review: https://gerrit.cloudera.org/c/14533/
> Fix kudu::itest::FindTabletFollowers() test utility function
> ------------------------------------------------------------
>
> Key: KUDU-2962
> URL: https://issues.apache.org/jira/browse/KUDU-2962
> Project: Kudu
> Issue Type: Improvement
> Components: test
> Reporter: Alexey Serbin
> Assignee: Bankim Bhavsar
> Priority: Minor
> Labels: newbie
>
> The {{kudu::itest::FindTabletFollowers()}} function is unsafe: it uses
> {{kudu::itest::FindTabletLeader()}} to generate the result as a complement to
> tablet servers hosting the leader replica, but it doesn't sanitize the set of
> tablet servers to make sure it contains only tablet servers hosting replicas
> of the specified tablet.
> For example, if you have a cluster with 10 tablet servers, and a tablet with
> 3 tablet replicas, passing the map for all tablet servers in the 10-node
> cluster would result in {{FindTabletFollowers()}} reporting 9 followers.
> Whoops!
> It's necessary to either fix the implementation of this utility function to
> sanitize its first argument, or simply get rid of it.
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