Im using ProxySQL in my production infra, few days back I have installed PMM to monitor the ProxySQL. But every 1 second Im getting the below error.
2018-08-24 16:02:07 MySQL_Session.cpp:2884:handler(): [WARNING] Error during query on (1,10.40.4.16,3306): 1193, Unknown system variable 'wsrep_sync_wait'
And this caused 1GB log file daily. Why this happening?