huge SubtransSLRU and SubtransBuffer wait_event

["James Pang (chaolpan)" <chaolpan@xxxxxxxxx>]

Hi,

   We have a Postgresqlv14.8 server, client use Postgresql JDBC connections, today, our server see a lot of  “SubtransBuffer” and “SubtransSLRU” wait_event. Could you help direct me what’s the possible cause and how to resolve this waits ?

 

Thanks,

 

James