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https://issues.apache.org/jira/browse/FLINK-10637?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16658787#comment-16658787
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Till Rohrmann commented on FLINK-10637:
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Yes, this is correct. However, we use the {{MiniCluster}} directly in some
tests. I would like to replace it by splitting the current
{{MiniClusterResource}} into {{MiniClusterWithClientResource extends
MiniClusterResource}} and the {{MiniClusterResource}} which only starts a
{{MiniCluster}}.
> Start MiniCluster with random REST port
> ---------------------------------------
>
> Key: FLINK-10637
> URL: https://issues.apache.org/jira/browse/FLINK-10637
> Project: Flink
> Issue Type: Improvement
> Components: Tests
> Affects Versions: 1.5.4, 1.6.1, 1.7.0
> Reporter: Till Rohrmann
> Assignee: Till Rohrmann
> Priority: Critical
> Fix For: 1.5.6, 1.6.3, 1.7.0
>
>
> The {{MiniCluster}} picks a random port for the {{RpcService}} but not for
> the REST server endpoint. Due to this it falls back to {{8081}}. This can
> lead to port conflicts if tests are executed concurrently.
> I propose to rename the {{MiniClusterResource}} into
> {{MiniClusterResourceWithRestClient}} and add a new {{MiniClusterResource}}
> which only starts a {{MiniCluster}} with the REST port set to 0.
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