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Name Node Heap Usage (weekly and daily) critical alert

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Hello All, 

    I have a NN HA enabled cluster which is set with below heap parameters,

NN Java Heap size - 24 GB

NN New Generation size - 3 GB 

Hadoop Max Java heap size - 1 GB

I have this alert for almost a week now

NN Heap usage (Weekly) in  Active NN Critical - 

The variance for this alert is 4,624MB which is 67% of the 6,871MB average (3,436MB is the limit)

NN Haep Usage (Daily) in Active NN Warning -

The variance for this alert is 4,070MB which is 42% of the 9,647MB average (3,859MB is the limit)

  How do I fix this?