Re: Standby server won't start

From: "Rajeev rastogi" <rajeev.rastogi@huawei.com>
If you changed max_connection to 4 only in primary, then I am not able to 
understand, how it got changed in standby also (if you have not taken back 
again)?
Let me know If I have missed something.

The primary log the new value as an XLOG_PARAMETER_CHANGE WAL record at 
startup when the parameter value in postgresql.conf does not match the one 
in pg_control.  Then, the WAL record is sent to the standby and applied, 
which changes the value in pg_control on the standby.

Regards
MauMau