[jira] [Updated] (ARTEMIS-6172) HTTP tunneling server async packets starve request replies

["ASF GitHub Bot (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARTEMIS-6172?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

ASF GitHub Bot updated ARTEMIS-6172:
------------------------------------
    Labels: pull-request-available  (was: )

> HTTP tunneling server async packets starve request replies
> ----------------------------------------------------------
>
>                 Key: ARTEMIS-6172
>                 URL: https://issues.apache.org/jira/browse/ARTEMIS-6172
>             Project: Artemis
>          Issue Type: Bug
>            Reporter: Domenico Francesco Bruscino
>            Assignee: Domenico Francesco Bruscino
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> With httpEnabled=true, Core packets are tunneled over HTTP. HttpAcceptorHandler pairs each client POST with one queued HTTP response slot; every server outbound ByteBuf must take a slot before it can be flushed.
> Server-initiated / async packets (e.g. ClusterTopologyChangeMessage) also consume those slots. When they drain the queue, replies to the client’s own requests block on responses.take() until another HTTP request arrives. The client is often waiting for that reply, so the connection stalls.
> After ARTEMIS-5819
> * NoHttpKeepAliveRunnable→ response slots tend to accumulate and are not flushed when the broker has nothing to say.
> * No idle GET → no way to create a new response slot when the queue is empty and async traffic already consumed capacity.



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