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https://issues.apache.org/jira/browse/KNOX-2899?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17714701#comment-17714701
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ASF subversion and git services commented on KNOX-2899:
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Commit 45394aa590af4b14a874ec49340e450dd20611d9 in knox's branch
refs/heads/master from Sandor Molnar
[ https://gitbox.apache.org/repos/asf?p=knox.git;h=45394aa59 ]
KNOX-2899 - Disable service-based discovery filter in Cloudera Manager service
discovery (#749)
> Disable service-based discovery filter
> --------------------------------------
>
> Key: KNOX-2899
> URL: https://issues.apache.org/jira/browse/KNOX-2899
> Project: Apache Knox
> Issue Type: Task
> Components: Server
> Reporter: Sandor Molnar
> Assignee: Sandor Molnar
> Priority: Major
> Fix For: 2.1.0
>
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> With KNOX-2680, the Knox team introduced two major changes in Cloudera
> Manager service discovery:
> * the first is that Knox only discovers services that are actually listed in
> the given descriptor (instead of discovering the entire cluster)
> * from now on, Knox maintains an in-memory repository of discovered data
> (cluster, service, and role configs). Caffeine is used as the cache
> implementation with the default of 10 mins of cache entry TTL.
> It turns out the first improvement may cause redundant topology redeployments
> due to "missing" service discovery details while the {{Polling Configuration
> Analyzer}} finds a relevant event that belongs to a service that was not
> included in the latest discovery round.
> For now, we should disable that feature temporarily until it's clear how to
> enable and address the redundant redeployment issue.
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