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https://issues.apache.org/jira/browse/SLING-12218?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Christian Schneider resolved SLING-12218.
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Resolution: Fixed
> Limit queue size
> ----------------
>
> Key: SLING-12218
> URL: https://issues.apache.org/jira/browse/SLING-12218
> Project: Sling
> Issue Type: Improvement
> Components: Content Distribution
> Reporter: Christian Schneider
> Assignee: Christian Schneider
> Priority: Major
> Fix For: Content Distribution Journal Core 0.3.0
>
>
> Currently users can add an indefinite number of replications to the queue.
> This is problematic as the end to end latency increases with the queue size.
> So it makes sense to have a limit on the queue size.
> If the limit is reached we should:
> - Block for a certain time to wait for the queue size to become smaller
> - Fail after the timeout with an exception ( in case of http call we could
> fail with 429 or 503)
> Metric for queue size limit reached.
> As the changed behaviour might break user code we should make the limiting
> behaviour opt in via a PublisherConfiguration.
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