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https://issues.apache.org/jira/browse/FLINK-18209?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17133157#comment-17133157
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Aljoscha Krettek commented on FLINK-18209:
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I don't think we should rush changing "master". There has been some 
back-and-forth with this already and I think most people still confuse the 
terms. The glossary defines some terms but they are a bit different from how 
they are used in code and by most old-school Flink people. What used to be 
called JobManager is now referred to as "Flink Master" in the glossary, the 
"Flink Master" usually runs a component called JobManager but that is different 
from how us OGs think of as a JobManager. And it doesn't help that the thing 
the glossary calls JobManager is called JobMaster in the code, but there are 
still references to JobManager in there, both for the old-style usage and the 
new one.

 Maybe we can just go back to calling the "Flink Master" JobManager?

> Replace "charged" words in the Flink codebase.
> ----------------------------------------------
>
>                 Key: FLINK-18209
>                 URL: https://issues.apache.org/jira/browse/FLINK-18209
>             Project: Flink
>          Issue Type: Task
>            Reporter: Marta Paes Moreira
>            Priority: Trivial
>
> The Flink codebase still makes use of "charged" words that are considered 
> outdated and have a negative connotation. In particular, this is the number 
> of occurrences of such words:
> "Master": 1366
> "Slave": 229
>   
>  "Whitelist": 23
>   
>  "Blacklist": 28
>   
>  I'd like to propose that we rethink the use of these words [1] and consider 
> existing alternatives that other open source projects are also adopting. 
> Replacing all occurrences is non-trivial in many cases and may involve 
> breaking-changes, though, so one idea would be to break this effort down into 
> different phases that can be tackled over time, depending on the impact of 
> the required changes.
> [1] [https://lethargy.org/~jesus/writes/a-guide-to-nomenclature-selection/]



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