[pgpool-hackers: 2927] SCRAM: 2 x backend

[Jesper Pedersen]

Hi,

When I'm using SCRAM-SHA256 authentication with the SCRAM_AUTH branch 
I'm seeing that 2 times the number backends are created per client.

pg_hba.conf
-----------
host all all 127.0.0.1/32 scram-sha-256

pool_hba.conf
-----------
host all all 127.0.0.1/32 scram-sha-256

pgpool.conf:
------------
num_init_children = 100
max_pool = 1

Then connect to the database

  psql -h localhost -p 9999 -U myuser mydb

and exit (\q). ps aux | grep postgres will show 2 active backends.

Connecting with a MD5 based user only creates 1 active backend.

SCRAM_AUTH as of August 9, 2018.

Best regards,
  Jesper