Peter Bacsko created YARN-9269:
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Summary: Minor cleanup in FpgaResourceAllocator
Key: YARN-9269
URL: https://issues.apache.org/jira/browse/YARN-9269
Project: Hadoop YARN
Issue Type: Sub-task
Reporter: Peter Bacsko
Some stuff that we observed:
* {{addFpga()}} - we check for duplicate devices, but we don't print any
error/warning if there's any.
* {{findMatchedFpga()}} should be called findMatchingFpga(). Also, is this
method even needed? We already receive an {{FpgaDevice}} instance in
{{updateFpga()}} which I believe is the same that we're looking up.
* variable {{IPIDpreference}} is confusing
* {{availableFpga}} / {{usedFpgaByRequestor}} are instances of
{{LinkedHashMap}}. What's the rationale behind this? Doesn't a simple
{{HashMap}} suffice?
* {{usedFpgaByRequestor}} should be renamed, naming is a bit unclear
* {{allowedFpgas}} should be an immutable list
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