[jira] [Created] (HDDS-17117) Start OM HTTP server early and show OM startup progress

["Siyao Meng (Jira)" <ji...@apache.org>]

Siyao Meng created HDDS-17117:
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             Summary: 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


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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