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High MySQL CPU due to leap second (fix)

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We were having high CPU usage on MySQL (MariaDB) over the past few days. High CPU ~100% even though there were no queries/databases. Turns out it was due to 'leap second' linux kernel bug that has affected MySQL.

If you are having higher than usual load/CPU usage since June 30th and haven't restarted your linux box over the past week, try the following fix.



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