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https://issues.apache.org/jira/browse/SLING-9546?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17143700#comment-17143700
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Timothee Maret commented on SLING-9546:
---------------------------------------

The test expects the subscriber to go from RUNNING to IDLE when processing an 
item, 
[here|https://github.com/apache/sling-org-apache-sling-distribution-journal/blob/f4af344894622eec9cf61aedbfe0efb07a8f3530/src/test/java/org/apache/sling/distribution/journal/impl/subscriber/SubscriberTest.java#L252-L253].
 That assumption is invalid and prone to timing issues.

> SubscriberTest.testReceiveDelete fails
> --------------------------------------
>
>                 Key: SLING-9546
>                 URL: https://issues.apache.org/jira/browse/SLING-9546
>             Project: Sling
>          Issue Type: Bug
>          Components: Content Distribution
>            Reporter: Timothee Maret
>            Priority: Major
>             Fix For: Content Distribution Journal Core 0.1.18
>
>
> The test started to fail in Jenkins but not reproducible locally.
>  
> {code}
> Error Message
> Lambda expression in 
> org.apache.sling.distribution.journal.impl.subscriber.SubscriberTest that 
> uses 
> org.apache.sling.distribution.journal.impl.subscriber.DistributionSubscriber: 
> expected <RUNNING> but was <IDLE> within 10 seconds.
> Stacktrace
> org.awaitility.core.ConditionTimeoutException: Lambda expression in 
> org.apache.sling.distribution.journal.impl.subscriber.SubscriberTest that 
> uses 
> org.apache.sling.distribution.journal.impl.subscriber.DistributionSubscriber: 
> expected <RUNNING> but was <IDLE> within 10 seconds.
>       at 
> org.apache.sling.distribution.journal.impl.subscriber.SubscriberTest.waitSubscriber(SubscriberTest.java:345)
>       at 
> org.apache.sling.distribution.journal.impl.subscriber.SubscriberTest.testReceiveDelete(SubscriberTest.java:252)
> Standard Output
> 2020-06-24 09:15:39,935 INFO [Queue Processor for Subscriber agent sub1agent] 
> o.a.s.d.j.i.s.DistributionSubscriber [DistributionSubscriber.java : 282] 
> Started Queue processor -  
> 2020-06-24 09:15:39,938 INFO [main] o.a.s.d.j.i.s.DistributionSubscriber 
> [DistributionSubscriber.java : 202] Started Subscriber agent sub1agent at 
> offset 0, subscribed to agent names [pub1agent] with package builder journal 
> editable false maxRetries -1 errorQueueEnabled false -  
> 2020-06-24 09:15:39,943 INFO [Queue Processor for Subscriber agent sub1agent] 
> o.a.s.d.j.i.s.BookKeeper [BookKeeper.java : 144] Importing distribution 
> package myid of type DELETE at offset 0 -  
> 2020-06-24 09:15:39,945 INFO [Queue Processor for Subscriber agent sub1agent] 
> o.a.s.d.j.i.s.PackageHandler [PackageHandler.java : 107] Deleting paths 
> [/test] - retries=0, paths=/test, sub-sling-id=sub1sling, 
> module=distribution, sub-agent-name=sub1agent, pub-sling-id=pub1sling, 
> distribution-message-type=DELETE, package-id=myid, pub-agent-name=pub1agent 
> 2020-06-24 09:15:50,007 INFO [main] o.a.s.d.j.i.s.DistributionSubscriber 
> [DistributionSubscriber.java : 227] Stopped Subscriber agent sub1agent, 
> subscribed to Publisher agent names [pub1agent] with package builder journal 
> -  
> {code}



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