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https://issues.apache.org/jira/browse/KUDU-2932?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16917942#comment-16917942
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Todd Lipcon commented on KUDU-2932:
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bq. kudu doesn't support data locality
What do you mean by that? I think it _does_ support data locality (Impala/Spark
tasks are put on the same machine as the kudu tserver, usually).
bq. I think it's useful to support unix domain socket for computing
engine(impala/spark) and storage engine(kudu) mixed deployment scenarios.
We actually did some work on this many years ago, and also tried using shared
memory. The domain socket seemed to have a small improvement, but shared memory
didn't seem to be worth the benefit. You can find some of the really old
patches on gerrit: https://gerrit.cloudera.org/#/c/957/
> Unix domain socket could speed up data transmission
> ---------------------------------------------------
>
> Key: KUDU-2932
> URL: https://issues.apache.org/jira/browse/KUDU-2932
> Project: Kudu
> Issue Type: New Feature
> Reporter: HeLifu
> Priority: Major
>
> Right now, kudu doesn't support data locality. So, I think it's useful to
> support unix domain socket for computing engine(impala/spark) and storage
> engine(kudu) mixed deployment scenarios.
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