[jira] [Commented] (ARTEMIS-3805) Change default Bridge Producer Window Size to 1MB

["Anton Roskvist (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/ARTEMIS-3805?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17532227#comment-17532227 ] 

Anton Roskvist commented on ARTEMIS-3805:
-----------------------------------------

Hello [~clebertsuconic] 

This seems to introduce an issue for me in a testing environment... messages get "stuck" on $.artemis.internal...-queues. Setting the previous default  (producer-window-size=-1) resolves the issue and message flow resumes.

It might be because some messages getting forwarded in my case exceeds the 1MiB window size and I guess smaller messages sent after those gets stuck "behind" the large ones.

Again, setting the previous default solves it for me but if this is expected behavior I guess it should be mentioned in the patch notes once 2.22.0 releases?

> Change default Bridge Producer Window Size to 1MB
> -------------------------------------------------
>
>                 Key: ARTEMIS-3805
>                 URL: https://issues.apache.org/jira/browse/ARTEMIS-3805
>             Project: ActiveMQ Artemis
>          Issue Type: Improvement
>            Reporter: Clebert Suconic
>            Assignee: Clebert Suconic
>            Priority: Major
>             Fix For: 2.22.0
>
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> The default producer value for a Bridge (clustered or not) is -1, meaning unlimited.
> We had seen scenarios where the target and source runs out of memory when running on slow networking or disk.
> I have looked into changing the implementation to back pressure the networking, however values are added into an Executor (through an Actor), and we the alternate back pressure would mean to add a new value to this executor, binding it towards the network.
> Which is a whole circle round back to the same problem... managing credits.
> instead of adding a new value, I will change the default value for Bridges which would have the same impact.



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