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https://issues.apache.org/jira/browse/SLING-9030?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Timothee Maret resolved SLING-9030.
-----------------------------------
Resolution: Fixed
> SimpleDistributionAgentQueueProcessor does not distinguish between
> recoverable and non-recoverable exceptions
> -------------------------------------------------------------------------------------------------------------
>
> Key: SLING-9030
> URL: https://issues.apache.org/jira/browse/SLING-9030
> Project: Sling
> Issue Type: Bug
> Components: Content Distribution
> Reporter: Mohit Arora
> Assignee: Timothee Maret
> Priority: Major
> Fix For: Content Distribution Core 0.4.2
>
> Time Spent: 1h 40m
> Remaining Estimate: 0h
>
> [SimpleDistributionAgentQueueProcessor.java|https://github.com/apache/sling-org-apache-sling-distribution-core/blob/master/src/main/java/org/apache/sling/distribution/agent/impl/SimpleDistributionAgentQueueProcessor.java#L83]
> is responsible for processing a queueItem which is then passed on to
> [RemoteDistributionPackageImporter#importPackage()|https://github.com/apache/sling-org-apache-sling-distribution-core/blob/master/src/main/java/org/apache/sling/distribution/packaging/impl/importer/RemoteDistributionPackageImporter.java#L59]
> which in turn selects a valid transporter and send the POST request through
> [SimpleHttpDistributionTransport#deliverPackage()|https://github.com/apache/sling-org-apache-sling-distribution-core/blob/master/src/main/java/org/apache/sling/distribution/transport/impl/SimpleHttpDistributionTransport.java#L108].
> There can be 2 types of exceptions thrown by this deliverPackage() function.
> One is a
> [RecoverableDistributionException|https://github.com/apache/sling-org-apache-sling-distribution-core/blob/master/src/main/java/org/apache/sling/distribution/common/RecoverableDistributionException.java]
> which is a type of DistributionException and another is
> DistributionException. As the name suggests, a
> RecoverableDistributionException is where the transport is tried again. But
> it seems there is currently no cap on the number of retries.
> For example, if the endpoint is not accessible at the moment, the error logs
> of the caller application will be flooded with constant retries of the
> DistributionPackages in queue, until the endpoint comes up and the
> distribution is successful. The reason being, [the verbose logging done
> here|https://github.com/apache/sling-org-apache-sling-distribution-core/blob/master/src/main/java/org/apache/sling/distribution/agent/impl/SimpleDistributionAgentQueueProcessor.java#L151].
> This would lead to sharp increase in disk size of the caller application.
> Perhaps the logging can be less verbose and can be logged at *WARN* level for
> RecoverableDistributionException.
> cc - [~ashishc], [~marett]
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