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https://issues.apache.org/jira/browse/FLINK-17611?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17105121#comment-17105121
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Tzu-Li (Gordon) Tai edited comment on FLINK-17611 at 5/12/20, 6:23 AM:
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I like this a lot, +1. And thanks a lot for bringing this up + willing to
implement this!
For starters, I'd suggest first looking at how to implement a new {{kind}} of
request reply protocol based remote function. For that, I suggest taking a look
at the {{JsonModule}} class. In there, you'll find the {{configureFunctions}}
method which figures out what functions to provide based on the configured kind
in YAML textual modules. From there, you'll also be able to figure out how the
HTTP-based request-reply protocol is implemented, as a reference example.
In any case, lets also wait for [~igal] to chime in as he'll have the best
judgement here.
was (Author: tzulitai):
I like this a lot, +1. And thanks a lot for bringing this up + willing to
implement this!
For starters, I'd suggest first looking at how to implement a new {{kind}} of
request reply protocol based remote function. For that, I suggest taking a look
at the {{JsonModule}} class. In there, you'll find the {{configureFunctions}}
method which figures out what functions to provide based on the configured
kind. From there, you'll also be able to figure out how the HTTP-based
request-reply protocol is implemented, as a reference example.
In any case, lets also wait for [~igal] to chime in as he'll have the best
judgement here.
> Support unix domain sockets for sidecar communication in Stateful Functions
> ---------------------------------------------------------------------------
>
> Key: FLINK-17611
> URL: https://issues.apache.org/jira/browse/FLINK-17611
> Project: Flink
> Issue Type: New Feature
> Components: Stateful Functions
> Reporter: Francesco Guardiani
> Priority: Major
> Original Estimate: 48h
> Remaining Estimate: 48h
>
> Hi all,
> I'm quite new to this project and I've started investigating its potential
> usage in Kubernetes.
> I've found in past that using Unix Domain Sockets across several containers
> in the same pod gives an interesting performance boost and drastically
> reduces the overhead of going through the network stack. Given that
> containers in a pod run in the same host, it's perfectly reasonable to let
> them communicate through unix domain sockets.
> If you're interested in such feature, I'm more than willing to help
> implementing that, given that I need a few pointers where to start from
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