Aleksandr Polovtcev created IGNITE-14498:
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             Summary: Flag for enabling/disabling data region metrics works 
incorrectly
                 Key: IGNITE-14498
                 URL: https://issues.apache.org/jira/browse/IGNITE-14498
             Project: Ignite
          Issue Type: Bug
          Components: persistence
            Reporter: Aleksandr Polovtcev


{{DataRegionMetricsImpl}} class has a {{metricsEnabled}} flag which toggles 
some metrics collection. This flag can be changed in runtime (e.g. through 
JMX), however, when switched off, it simply disables all metrics-related 
activities in this class, which means that when turned back on, all counters 
will be stale and all reported statistics will be wrong.



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