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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