We are facing an error 3 times as the following. Our Postgresql 9.6.5 database servers has got "stuck". And we couldn’t fix this. There is nothing in the logs to indicate a problem. We have tried restarting the server. Is there anyone who faced this problem before?
Postgres version = 9.6.5
Shared buffers = 12GB
Max_connection = 800
Server RAM = 94GB
Linux CentOS7 =Linux 3.10.0-693.el7.x86_64(16 CPU)
We have a standby server but asynchronous status...