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https://issues.apache.org/jira/browse/MESOS-8602?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16373661#comment-16373661
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Yan Xu commented on MESOS-8602:
-------------------------------
/cc [~greggomann]
> Subscribers::send incorrectly assumes frameworks are registered
> ---------------------------------------------------------------
>
> Key: MESOS-8602
> URL: https://issues.apache.org/jira/browse/MESOS-8602
> Project: Mesos
> Issue Type: Bug
> Reporter: Yan Xu
> Priority: Major
>
> We observed this in prod
> {noformat}
> F0214 00:36:15.746939 3827787 master.cpp:11190] Check failed: 'framework'
> Must be non NULL
> {noformat}
> which is here in code:
> [https://github.com/apache/mesos/blob/9635d4a2d12fc77935c3d5d166469258634c6b7e/src/master/master.cpp#L11203]
> h2. Diagnosis
> The checks were added in in
> [https://github.com/apache/mesos/commit/cf331184714f692f21988a53fd04fa64fbbb3aba]
> MESOS-8469,
> {code:java}
> Framework* framework =
> master->getFramework(event.task_added().task().framework_id());
> CHECK_NOTNULL(framework);
> {code}
> However as least when we recover tasks when the agent reregisters after a
> master failover, the frameworks may not have reregistered yet so they don't
> show up in the result from {{master->getFramework}}. Such checks failed to
> consider this.
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