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https://issues.apache.org/jira/browse/FLINK-10436?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16655450#comment-16655450
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ASF GitHub Bot commented on FLINK-10436:
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TisonKun commented on issue #6872: [FLINK-10436] Add
ConfigOption#withFallbackKeys
URL: https://github.com/apache/flink/pull/6872#issuecomment-431058218
The idea we need a fallback key is because keyA and keyB(with keyA fallback
to keyB) are conceptually not the same thing or keyB succeed keyA. It just, in
the context, we use the configured keyB as a default(fallback) value to keyA.
And I agree that if the key's semantic changes, we should update the fallback
dependency on demand.
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> Example config uses deprecated key jobmanager.rpc.address
> ---------------------------------------------------------
>
> Key: FLINK-10436
> URL: https://issues.apache.org/jira/browse/FLINK-10436
> Project: Flink
> Issue Type: Sub-task
> Components: Startup Shell Scripts
> Affects Versions: 1.7.0
> Reporter: Ufuk Celebi
> Assignee: TisonKun
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.7.0
>
>
> The example {{flink-conf.yaml}} shipped as part of the Flink distribution
> (https://github.com/apache/flink/blob/master/flink-dist/src/main/resources/flink-conf.yaml)
> has the following entry:
> {code}
> jobmanager.rpc.address: localhost
> {code}
> When using this key, the following deprecation warning is logged.
> {code}
> 2018-09-26 12:01:46,608 WARN org.apache.flink.configuration.Configuration
> - Config uses deprecated configuration key
> 'jobmanager.rpc.address' instead of proper key 'rest.address'
> {code}
> The example config should not use deprecated config options.
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