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https://issues.apache.org/jira/browse/HDDS-17117?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Siyao Meng updated HDDS-17117:
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Attachment: HDDS-17117.001.diff
> Start OM HTTP server early and show OM startup progress
> -------------------------------------------------------
>
> Key: HDDS-17117
> URL: https://issues.apache.org/jira/browse/HDDS-17117
> Project: Apache Ozone
> Issue Type: Sub-task
> Components: Ozone Manager
> Reporter: Siyao Meng
> Priority: Major
> Attachments: HDDS-17117.001.diff
>
>
> Start the OM HTTP server right after Kerberos login in the OzoneManager
> constructor, instead of in start(). Initialize metrics before it, start it
> only once (including for inactive OMs in MiniOzoneHAClusterImpl), and stop it
> if the constructor fails. Gate /serviceList, /snapshotList, /dbCheckpoint and
> /v2/dbCheckpoint until OM is ready. Without the gate, /serviceList reports
> the OM as LEADER while the Ratis server is not yet created.
> Track phases: Initializing, Waiting for SCM, Opening OM DB, Loading snapshot
> chain, Loading prefixes, Initializing snapshot manager, Starting Ratis,
> Starting services, Replaying Raft log.
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