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https://issues.apache.org/jira/browse/FLINK-7947?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16237418#comment-16237418
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Till Rohrmann commented on FLINK-7947:
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I think so because {{ParameterTool}} has unfortunately been marked as
{{Public}}.
> Let ParameterTool return a dedicated GlobalJobParameters object
> ---------------------------------------------------------------
>
> Key: FLINK-7947
> URL: https://issues.apache.org/jira/browse/FLINK-7947
> Project: Flink
> Issue Type: Improvement
> Components: Client
> Affects Versions: 1.4.0
> Reporter: Till Rohrmann
> Assignee: Bowen Li
> Priority: Major
>
> The {{ParameterTool}} directly implements the {{GlobalJobParameters}}
> interface. Additionally it has grown over time to not only store the
> configuration parameters but also to record which parameters have been
> requested and what default value was set. This information is irrelevant on
> the server side when setting a {{GlobalJobParameters}} object via
> {{ExecutionConfig#setGlobalJobParameters}}.
> Since we don't separate the {{ParameterTool}} logic and the actual data view,
> users ran into problems when reusing the same {{ParameterTool}} to start
> multiple jobs concurrently (see FLINK-7943). I think it would be a much
> clearer separation of concerns if we would actually split the
> {{GlobalJobParameters}} from the {{ParameterTool}}.
> Furthermore, we should think about whether {{ParameterTool#get}} should have
> side effects or not as it does right now.
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