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https://issues.apache.org/jira/browse/YARN-7512?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16401323#comment-16401323
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Chandni Singh commented on YARN-7512:
-------------------------------------
{quote}I was just questioning whether the version should appear in the file
name of the file that is saved to HDFS.
{quote}
Since we are not restricting upgrade while another upgrade is in progress,
there will be conflicts during writing to the existing file from rest service
while Service AM is reading the file to figure out which components need
upgrade. YARN-8018 has these changes to initializing service upgrade. Please,
let me know if there are problems with the approach on YARN-8018.
> Support service upgrade via YARN Service API and CLI
> ----------------------------------------------------
>
> Key: YARN-7512
> URL: https://issues.apache.org/jira/browse/YARN-7512
> Project: Hadoop YARN
> Issue Type: New Feature
> Reporter: Gour Saha
> Assignee: Chandni Singh
> Priority: Major
> Fix For: yarn-native-services
>
> Attachments: _In-Place Upgrade of Long-Running Applications in
> YARN_v1.pdf, _In-Place Upgrade of Long-Running Applications in YARN_v2.pdf
>
>
> YARN Service API and CLI needs to support service (and containers) upgrade in
> line with what Slider supported in SLIDER-787
> (http://slider.incubator.apache.org/docs/slider_specs/application_pkg_upgrade.html)
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