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Posted to dev@qpid.apache.org by "Ken Giusti (Jira)" <ji...@apache.org> on 2021/08/06 13:28:00 UTC

[jira] [Commented] (DISPATCH-2006) Set stricter default maxSessionFrames to avoid router OOM under load

    [ https://issues.apache.org/jira/browse/DISPATCH-2006?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17394760#comment-17394760 ] 

Ken Giusti commented on DISPATCH-2006:
--------------------------------------

Will experiment on possible fixes.  Setting release target to 2.0 under the current assumption this may require breaking changes.

> Set stricter default maxSessionFrames to avoid router OOM under load
> --------------------------------------------------------------------
>
>                 Key: DISPATCH-2006
>                 URL: https://issues.apache.org/jira/browse/DISPATCH-2006
>             Project: Qpid Dispatch
>          Issue Type: Improvement
>          Components: Router Node
>    Affects Versions: 1.15.0
>            Reporter: Ken Giusti
>            Assignee: Ken Giusti
>            Priority: Major
>             Fix For: 2.0.0
>
>
> By default, sessions created by the router have an essentially unlimited session window size.  This can result in unconstrained growth of router heap memory during periods of high traffic congestion.
>  
> The router needs to use reasonable session incoming window limits by default.  It's likely that different type of connections - endpoints, inter-router, etc - should have different default window sizes.  For example it's reasonable to provide a bigger window for inter-router links than simple endpoint connections.



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