These are the config parameters to change:

Initial number of idle db connections

sqlalchemy.pool_size=5

pool_size + max_overflow = maximum number of db connections to hold at a time

Bumped up from the default of 10

sqlalchemy.max_overflow=21

The packagedb is now running with these settings:
{{{
sqlalchemy.pool_size=5 # default
sqlalchemy.max_overflow=21 # Bumped up from 10
}}}

Noticed in the smolt logs that it's occassionally hitting the limit of 5 + 21 db connections. Try upping max_overflow a bit more on Monday.

smolt has been upped to
{{{
sqlalchemy.pool_size=5
sqlalchemy.max_overflow=27
}}}

I'll be watching as the clients start checking in tomorrow to see if there's any further problems with too few connection limits.

smolt currently looks fine. No evidence that the number of db connections is a current bottleneck.