# If the instance is lower capacity than r5.xlarge, then set it to a lower number.
# Also tune the "MaxOpenConns" setting under the "SqlSettings" of the Mattermost app accordingly.
# Note that "MaxOpenConns" on Mattermost is per data source name.
max_connections = 1024

# Set it to 1.1, unless the DB is using spinning disks.
random_page_cost = 1.1

# This should be 32MB if using read replicas, or 16MB if using a single PostgreSQL instance.
# If the instance is of a lower capacity than r5.xlarge, then set it to a lower number.
work_mem = 16MB

# Set both of the below settings to 65% of total memory. For a 32 GB instance, it should be 21 GB.
# If on a smaller server, set this to 20% or less total RAM.
# ex: 512MB would work for a 4GB RAM server
shared_buffers = 512MB
effective_cache_size = 512MB

# If you are using pgbouncer, or any similar connection pooling proxy,
# in front of your DB, then apply the keepalive settings to the proxy instead,
# and revert the keepalive settings for the DB back to defaults.
tcp_keepalives_idle = 5
tcp_keepalives_interval = 1
tcp_keepalives_count = 5

# 1GB (reduce this to 512MB if your server has less than 32GB of RAM)
maintenance_work_mem = 512MB

autovacuum_max_workers = 4
autovacuum_vacuum_cost_limit = 500

## Intentionally disabled here because running in docker this may cause performance problems.

# If you have more than 32 CPUs on your database server, please set the following options to utilize more CPU for your server:
# max_worker_processes = 12
# max_parallel_workers_per_gather = 4
# max_parallel_workers = 12
# max_parallel_maintenance_workers = 4

log_connections = on
log_disconnections = on
log_replication_commands = on