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https://issues.apache.org/jira/browse/HDFS-9055?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14741421#comment-14741421
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Allen Wittenauer commented on HDFS-9055:
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bq. Can you show some numbers on what are the latencies on data-center
networks?
Our customers are transferring data from outside our data center so the the
point is moot.
bq. If the NN takes the read / write lock to perform the recursive requests,
shouldn't it be considered as DDoS as well?
No because there's no reason why the NN should lock here. Nothing is prevent it
from spawning off a DFSClient thread to act just like an RPC client would.
> WebHDFS REST v2
> ---------------
>
> Key: HDFS-9055
> URL: https://issues.apache.org/jira/browse/HDFS-9055
> Project: Hadoop HDFS
> Issue Type: New Feature
> Components: webhdfs
> Affects Versions: 3.0.0
> Reporter: Allen Wittenauer
>
> There's starting to be enough changes to fix and add missing functionality to
> webhdfs that we should probably update to REST v2. This also gives us an
> opportunity to deal with some incompatible issues.
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