[jira] [Updated] (KNOX-2899) Disable service-based discovery filter

["Sandor Molnar (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/KNOX-2899?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sandor Molnar updated KNOX-2899:
--------------------------------
    Summary: Disable service-based discovery filter  (was: Disable service-based discovery)

> 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: 10m
>  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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