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https://issues.apache.org/jira/browse/HDDS-17116?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Siyao Meng updated HDDS-17116:
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Attachment: HDDS-17116.001.diff
> Start SCM HTTP server early and show SCM startup progress
> ---------------------------------------------------------
>
> Key: HDDS-17116
> URL: https://issues.apache.org/jira/browse/HDDS-17116
> Project: Apache Ozone
> Issue Type: Sub-task
> Components: SCM
> Reporter: Siyao Meng
> Priority: Major
> Attachments: HDDS-17116.001.diff
>
>
> Start the SCM HTTP server right after Kerberos login in the
> StorageContainerManager constructor, instead of in start(). Initialize
> metrics before it, start it only once, and stop it if the constructor fails.
> Gate /dbCheckpoint until SCM is ready.
> Track phases: Initializing, Opening SCM DB, Loading pipelines, Loading
> containers, Initializing managers, Starting services, Replaying Raft log
> (last applied index vs. the leader's commit index), Waiting for safe mode
> exit (one step per safe mode rule).
> Guard the SCM UI scripts against missing beans during startup, and change the
> rolling-upgrade driver.sh to wait for SCM readiness instead of port 9876.
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