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https://issues.apache.org/jira/browse/YARN-8542?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16548375#comment-16548375
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Gour Saha commented on YARN-8542:
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[~csingh] agreed that the API is to request for containers. However, the
structure I proposed adheres to the current status API structure and the
swagger definition. Note, service owners are already parsing through the
component instances across multiple components in the status response payload
if they need a single collection of all component instances. If you add a new
attribute "component_name" now, you would need to modify the swagger definition
and it would actually mean a change for the end-users since they would have to
handle the containers API output differently from the status API output.
Let me know what you think.
> Yarn Service: Add component name to container json
> --------------------------------------------------
>
> Key: YARN-8542
> URL: https://issues.apache.org/jira/browse/YARN-8542
> Project: Hadoop YARN
> Issue Type: Improvement
> Reporter: Chandni Singh
> Assignee: Chandni Singh
> Priority: Major
>
> GET app/v1/services/{\{service-name}}/component-instances returns a list of
> containers with YARN-8299.
> {code:java}
> [
> {
> "id": "container_1531508836237_0001_01_000003",
> "ip": "192.168.2.51",
> "hostname": "HW12119.local",
> "state": "READY",
> "launch_time": 1531509014497,
> "bare_host": "192.168.2.51",
> "component_instance_name": "sleeper-1"
> },
> {
> "id": "container_1531508836237_0001_01_000002",
> "ip": "192.168.2.51",
> "hostname": "HW12119.local",
> "state": "READY",
> "launch_time": 1531509013492,
> "bare_host": "192.168.2.51",
> "component_instance_name": "sleeper-0"
> }
> ]{code}
> {{component_name}} is not part of container json, so it is hard to tell which
> component an instance belongs to.
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