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https://issues.apache.org/jira/browse/HDDS-2237?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Bharat Viswanadham updated HDDS-2237:
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Fix Version/s: 0.5.0
Resolution: Fixed
Status: Resolved (was: Patch Available)
> KeyDeletingService throws NPE if it's started too early
> -------------------------------------------------------
>
> Key: HDDS-2237
> URL: https://issues.apache.org/jira/browse/HDDS-2237
> Project: Hadoop Distributed Data Store
> Issue Type: Task
> Components: om
> Reporter: Marton Elek
> Assignee: Marton Elek
> Priority: Major
> Labels: pull-request-available
> Fix For: 0.5.0
>
> Time Spent: 1h 10m
> Remaining Estimate: 0h
>
> 1. OzoneManager starts KeyManager
> 2. KeyManager starts KeyDeletingService
> 3. KeyDeletingService uses OzoneManager.isLeader()
> 4. OzoneManager.isLeader() uses omRatisServer
> 5. omRatisServer can be null (bumm)
>
> Now the initialization order in OzoneManager:
>
> new KeymanagerServer() *Includes start()!!!!*
> omRatisServer initialization
> start() (includes KeyManager.start())
>
> The solution seems to be easy: start the key manager only from the
> OzoneManager.start() and not from the OzoneManager.instantiateServices()
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