InnoDB page_cleaner error message: The settings might not be optimal My server is in idle state but I often get this error: 


Note: InnoDB: page_cleaner: 1000ms intended loop took 35165ms. 
The settings might not be optimal. 
flushed=0 and evicted=0, during the time



How can I fix this issue?
mysql&gt; set global innodb_lru_scan_depth=256;