Hi, I am using core ODBC for MySQL connect. Trying to implement failover using 2 servers - main and backup. If main server is not responding, it should try to query backup server. The following is used in my module: if (switch_odbc_handle_callback_exec(*globals.master_odbc*, sql, my_func_callback, &pdata, NULL) != SWITCH_ODBC_SUCCESS) { switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "(***)Error running query on master database: [%s]\n", sql); switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "(***)Trying backup database: [%s]\n", globals.backup_odbc); if (switch_odbc_handle_callback_exec(*globals.backup_odbc*, sql, my_func_callback, &pdata, NULL) != SWITCH_ODBC_SUCCESS) { switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_CRIT, "(***)Error running query on master and backup database: [%s]\n", sql); } } ... Right now it tries to reconnect to main server 120 times before it gives up and goes to backup server. I found the following in the switch_odbc.c: int max_tries = 120; Is there is a way to disable this check, so if it will not be able to connect to master, it will immediate go to backup server? I know I can change the source, but this will be already "customized core" - don't want to go in this direction. Or maybe there is a better way to handle database fail over in my module? Thank you, Vitalie