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https://issues.apache.org/jira/browse/YARN-6533?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16003636#comment-16003636
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Billie Rinaldi commented on YARN-6533:
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Thanks for the review, [~jianhe]. I am attaching a new patch that allows the
registerComponent method to be called, but removes the initial registration of
the service record. (After thinking about it some more, I don't think any
providers will want this partial record to be written.) I also found a
potentially bad bug where the YARN_ID was not being encoded when the service
record was updated.
> Race condition in writing service record to registry in yarn native services
> ----------------------------------------------------------------------------
>
> Key: YARN-6533
> URL: https://issues.apache.org/jira/browse/YARN-6533
> Project: Hadoop YARN
> Issue Type: Sub-task
> Reporter: Billie Rinaldi
> Assignee: Billie Rinaldi
> Attachments: YARN-6533-yarn-native-services.001.patch,
> YARN-6533-yarn-native-services.002.patch
>
>
> The ServiceRecord is written twice, once when the container is initially
> registered and again in the Docker provider once the IP has been obtained for
> the container. These occur asynchronously, so the more important record (the
> one with the IP) can be overwritten by the initial record. Only one record
> needs to be written, so we can stop writing the initial record when the
> Docker provider is being used.
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