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https://issues.apache.org/jira/browse/IGNITE-13013?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17154615#comment-17154615
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Alexey Goncharuk commented on IGNITE-13013:
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Folks, after thinking on the changes from IGNITE-12438, I suggest that we get
rid of {{connIdx}} from {{GridIoMessage}} and read the connection index
directly from {{TcpInverseConnectionResponseMessage}}, what do you think?
> Thick client must not open server sockets when used by serverless functions
> ---------------------------------------------------------------------------
>
> Key: IGNITE-13013
> URL: https://issues.apache.org/jira/browse/IGNITE-13013
> Project: Ignite
> Issue Type: Improvement
> Components: networking
> Affects Versions: 2.8
> Reporter: Denis A. Magda
> Priority: Critical
> Fix For: 2.9
>
>
> A thick client fails to start if being used inside of a serverless function
> such as AWS Lamda or Azure Functions. Cloud providers prohibit opening
> network ports to accept connections on the function's end. In short, the
> function can only connect to a remote address.
> To reproduce, you can follow this tutorial and swap the thin client (used in
> the tutorial) with the thick one:
> https://www.gridgain.com/docs/tutorials/serverless/azure_functions_tutorial
> The thick client needs to support a mode when the communication SPI doesn't
> create a server socket if the client is used for serverless computing. This
> improvement looks like an extra task of this initiative:
> https://issues.apache.org/jira/browse/IGNITE-12438
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