We're seeing a very odd occurrence on one of our radius servers. To my knowledge, it has only happened once (this morning), but it's the first time it's happened, and we're not entirely sure where to look to find the cause. We're running on a CentOS 6.6 system, with FR v2.1.12, which is the package that is distributed by CentOS/RH. Each day, the logrotate routing rotates the radius.log (and compresses it), and then restarts FR. This morning, however, the radius log showed that the process restarted, but that it did absolutely nothing for the next two hours and 13 minutes. Fri Mar 13 03:27:01 2015 : Info: HUP - loading modules Fri Mar 13 03:27:01 2015 : Info: Module: Reloaded module "attr_filter.access_reject" Fri Mar 13 03:27:01 2015 : Info: Module: Reloaded module "attr_filter.accounting_response" Fri Mar 13 03:27:01 2015 : Info: Module: Reloaded module "files" Fri Mar 13 03:27:01 2015 : Info: Module: Reloaded module "radutmp" Fri Mar 13 03:27:01 2015 : Info: Module: Reloaded module "suffix" Fri Mar 13 03:27:01 2015 : Info: Module: Reloaded module "mschap" Fri Mar 13 03:27:01 2015 : Info: Module: Reloaded module "pap" Fri Mar 13 03:27:01 2015 : Info: Loaded virtual server <default> Fri Mar 13 03:27:01 2015 : Info: Loaded virtual server inner-tunnel Fri Mar 13 05:40:53 2015 : Info: rlm_sql (sql): Driver rlm_sql_mysql (module rlm_sql_mysql) loaded and linked Fri Mar 13 05:40:53 2015 : Info: rlm_sql (sql): Attempting to connect to radius@xxxxxxxxxxxxxxxxx:3306/radius Fri Mar 13 05:40:53 2015 : Info: rlm_sql (sql): Attempting to connect rlm_sql_mysql #0 Fri Mar 13 05:40:53 2015 : Info: rlm_sql_mysql: Starting connect to MySQL server for #0 Fri Mar 13 05:40:53 2015 : Info: rlm_sql (sql): Connected new DB handle, #0 Fri Mar 13 05:40:53 2015 : Info: rlm_sql (sql): Attempting to connect rlm_sql_mysql #1 Fri Mar 13 05:40:53 2015 : Info: rlm_sql_mysql: Starting connect to MySQL server for #1 Fri Mar 13 05:40:53 2015 : Info: rlm_sql (sql): Connected new DB handle, #1 Fri Mar 13 05:40:53 2015 : Info: rlm_sql (sql): Attempting to connect rlm_sql_mysql #2 Fri Mar 13 05:40:53 2015 : Info: rlm_sql_mysql: Starting connect to MySQL server for #2 ... Following these entries, normal authentication/accounting messages resumed, as they had been doing just prior. Has anyone ever run across this? Any thoughts on how we might track it down? Thanks, Jim