[GitHub] reddycharan opened a new pull request #1941: (WIP) Exclude defaultrack bookies when enforceMinNumRacksPerWriteQuorum is enabled

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reddycharan opened a new pull request #1941: (WIP) Exclude defaultrack bookies when enforceMinNumRacksPerWriteQuorum is enabled
URL: https://github.com/apache/bookkeeper/pull/1941
 
 
   
   Descriptions of the changes in this PR:
   
   - enforceMinNumRacksPerWriteQuorum is meant to be used for strict placement policy. So when
   it is enabled, bookies which belong to default faultzone/rack (because of failure in resolving
   network location) should be excluded from bookie selection.
   - add gauge for number of bookies in default faultzone/rack. It will be helpful to create alerts
   based on this gauge.
   - add gauge for number of ledgers found not adhering to strict placement policy in Auditor's
   placement policy check. This gauge will be more helpful in creating alert instead of using
   monotonously increasing alert.
   

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