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https://issues.apache.org/jira/browse/YARN-9100?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Peter Bacsko updated YARN-9100:
-------------------------------
Attachment: YARN-9100-009.patch
> Add tests for GpuResourceAllocator and do minor code cleanup
> ------------------------------------------------------------
>
> Key: YARN-9100
> URL: https://issues.apache.org/jira/browse/YARN-9100
> Project: Hadoop YARN
> Issue Type: Improvement
> Reporter: Szilard Nemeth
> Assignee: Peter Bacsko
> Priority: Major
> Attachments: YARN-9100-004.patch, YARN-9100-005.patch,
> YARN-9100-006.patch, YARN-9100-007.patch, YARN-9100-008.patch,
> YARN-9100-009.patch, YARN-9100.001.patch, YARN-9100.002.patch,
> YARN-9100.003.patch
>
>
> Add tests for GpuResourceAllocator and do minor code cleanup
> - Improved log and exception messages
> - Added some new debug logs
> - Some methods are named like *Copy, these are returning copies of internal
> data structures. The word "copy" is just a noise in their name, so they have
> been renamed. Additionally, the copied data structures modified to be
> immutable.
> - The waiting loop in method assignGpus were decoupled into a new class,
> RetryCommand.
> Some more words about the new class RetryCommand:
> There are some similar waiting loops in the code in: AMRMClient,
> AMRMClientAsync and even in GenericTestUtils (see waitFor method).
> RetryCommand could be a future replacement of these duplicated code, as it
> gives a solution to this waiting loop problem in a generic way.
> The only downside of the usage of RetryCommand in GpuResourceAllocator
> (startGpuAssignmentLoop) is the ugly exception handling part, but that's
> solely because how Java deals with checked exceptions vs. lambdas. If there's
> a cleaner way to solve the exception handling, I'm open for any suggestions.
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