Hi dear list. I have been using freeradius 2.x from many years ago, buy now I am testing v 3.0.16. Everything works great, buy I have some Logs That I didn't have in v2.x, about MySQL: Wed Jan 2 21:04:57 2019 : Info: rlm_sql (sql): Opening additional connection (115), 1 of 32 pending slots used Wed Jan 2 21:04:57 2019 : Info: rlm_sql (sql): Opening additional connection (116), 1 of 31 pending slots used Wed Jan 2 21:05:05 2019 : Info: rlm_sql (sql): Opening additional connection (117), 1 of 30 pending slots used Wed Jan 2 21:05:10 2019 : Info: rlm_sql (sql): Opening additional connection (118), 1 of 29 pending slots used Wed Jan 2 21:05:17 2019 : Info: rlm_sql (sql): Opening additional connection (119), 1 of 28 pending slots used Wed Jan 2 21:05:20 2019 : Info: rlm_sql (sql): Opening additional connection (120), 1 of 27 pending slots used Wed Jan 2 21:05:21 2019 : Info: rlm_sql (sql): Opening additional connection (121), 1 of 26 pending slots used Wed Jan 2 21:06:00 2019 : Info: rlm_sql (sql): Opening additional connection (122), 1 of 25 pending slots used Wed Jan 2 21:07:10 2019 : Info: rlm_sql (sql): Closing connection (119): Hit idle_timeout, was idle for 113 seconds Wed Jan 2 21:07:10 2019 : Info: rlm_sql (sql): Closing connection (115): Hit idle_timeout, was idle for 113 seconds Wed Jan 2 21:07:10 2019 : Info: rlm_sql (sql): Closing connection (116): Hit idle_timeout, was idle for 110 seconds Wed Jan 2 21:07:10 2019 : Info: rlm_sql (sql): Closing connection (120): Hit idle_timeout, was idle for 109 seconds Wed Jan 2 21:07:10 2019 : Info: rlm_sql (sql): Closing connection (118): Hit idle_timeout, was idle for 109 seconds Wed Jan 2 21:07:10 2019 : Info: rlm_sql (sql): Closing connection (121): Hit idle_timeout, was idle for 109 seconds Wed Jan 2 21:07:10 2019 : Info: rlm_sql (sql): Closing connection (117): Hit idle_timeout, was idle for 70 seconds Wed Jan 2 21:07:10 2019 : Info: rlm_sql (sql): Closing connection (122): Hit idle_timeout, was idle for 70 seconds It is the nomal behavior? I want to migrate a fr v2.x with a lot o Autentication and Accounting queries (arount 600 Auth queries per minute, and much more accounting queries per minute), What would be the best coniguration of connections in sql module and sites-enabled/default file? I only use web authenticvation (PAP), I dont use EAP, MSCHAP, DIGEST, etc Best Regards -- *C. Andrés Gómez R.*