[jira] [Created] (HBASE-30209) MobFileCleanerChore is not registered for online configuration updates

["Xiao Liu (Jira)" <ji...@apache.org>]

Xiao Liu created HBASE-30209:
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             Summary: MobFileCleanerChore is not registered for online configuration updates
                 Key: HBASE-30209
                 URL: https://issues.apache.org/jira/browse/HBASE-30209
             Project: HBase
          Issue Type: Improvement
          Components: master, mob
            Reporter: Xiao Liu
            Assignee: Xiao Liu
             Fix For: 2.7.0, 3.0.0-beta-2, 2.5.16, 2.6.7


{\{MobFileCleanerChore}} implements \{{ConfigurationObserver}}, but \{{HMaster}} only creates and schedules the chore and does not register it with \{{ConfigurationManager}}.

Because of this, online configuration reloads triggered by \{{update_config}} do not reach \{{MobFileCleanerChore}}. In practice, changes such as \{{hbase.master.mob.cleaner.threads}} do not take effect until the master is restarted.

This patch registers \{{MobFileCleanerChore}} with \{{ConfigurationManager}} during initialization, deregisters it during shutdown, and adds tests to cover both the \{{HMaster}} wiring and the chore's own configuration change handling.



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