Hi... i'm getting some many errors like this... Mon Aug 20 11:27:26 2012 : Error: [sql] Couldn't update SQL accounting STOP record - Lock wait timeout exceeded; try restarting transaction Mon Aug 20 11:27:26 2012 : Error: rlm_sql_mysql: Cannot store result Mon Aug 20 11:27:26 2012 : Error: rlm_sql_mysql: MySQL error 'Lock wait timeout exceeded; try restarting transaction' and other lines with Logins OK... but have more errors sql than logins ok... i guess missing some tunning parameters... i have, 15 NAS vs 2 freeradius-servers ..... this do AA vs 2 LDAP balanced and A vs cluster-mysql can help me more less to up or down some numbers to tune efficient the requests about some experience ? thx any way -- Antonio Peña Secure email with PGP 0x8B021001 available at http://pgp.mit.edu Fingerprint: 74E6 2974 B090 366D CE71 7BB2 6476 FA09 8B02 1001