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https://issues.apache.org/jira/browse/YARN-10006?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16988708#comment-16988708
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Adam Antal commented on YARN-10006:
-----------------------------------
Uploaded patch v1.
{{CapacitySchedulerQueueManager#parseQueue}} has multiple sources where
IOException can be thrown (e.g. in the constructor of {{PlanQueue}},
{{ReservationQueue}}, {{ManagedParentQueue}}, {{LeafQueue}}). Also in
{{CapacityScheduler#initializeQueues}} there are other calls that throw
IOException (like {{#updatePlacementRules}}), so I think it's better to catch
any arbitrary type of Exceptions in {{initializeQueues}}, and emit a
{{YarnException}} there.
Also I think it's logically correct that in {{CapacityScheduler#initScheduler}}
we can throw IOException too (from {{CSConfigurationProvider#init}} and
{{#loadConfiguration}}), because it refers to failed IO operation.
> IOException used in place of YARNException in CapaitySheduler
> -------------------------------------------------------------
>
> Key: YARN-10006
> URL: https://issues.apache.org/jira/browse/YARN-10006
> Project: Hadoop YARN
> Issue Type: Bug
> Components: capacity scheduler
> Affects Versions: 3.3.0
> Reporter: Prabhu Joseph
> Assignee: Adam Antal
> Priority: Minor
> Attachments: YARN-10006.001.patch
>
>
> IOException used in place of YARNException in CapacityScheduler. As per
> YARNException Doc,
> {code:java}
> /**
> * YarnException indicates exceptions from yarn servers. On the other hand,
> * IOExceptions indicates exceptions from RPC layer.
> */
> {code}
> Below methods throws IOException but it is suppose to throw YarnException.
> CapacitySchedulerQueueManager#parseQueue <- initializeQueues <-
> CapacityScheduler#initializeQueues <- initScheduler <- serviceInit
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