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https://issues.apache.org/jira/browse/HDFS-13967?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16642105#comment-16642105
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Íñigo Goiri edited comment on HDFS-13967 at 10/8/18 4:36 PM:
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Than change looks like it keeps the same functionality and it adds a couple 
null checks which is always good.
The only part that concerns me is that now we use a HashMap order for the 
{{validLocations}} which I don't think is critical for this code though.
This LGTM but I'd like [~linyiqun] to take a look to double check.


was (Author: elgoiri):
Than change looks like it keeps the same functionality and it adds a couple 
null checks which is always good.
This LGTM but I'd like [~linyiqun] to take a look to double check.

> HDFS Router Quota Class Review
> ------------------------------
>
>                 Key: HDFS-13967
>                 URL: https://issues.apache.org/jira/browse/HDFS-13967
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: federation, hdfs
>    Affects Versions: 3.2.0
>            Reporter: BELUGA BEHR
>            Assignee: BELUGA BEHR
>            Priority: Minor
>         Attachments: HDFS-13967.1.patch
>
>
> # Use Guava library
> # Prefer ArrayList over LinkedList
> # Simplify code logic



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