Force web server ID to be 1 if no other server is found.

Till Brehm

2016-06-15 c4cf454ef455d05542d5513961f2ee8f5c34e018

1
ALTER TABLE  `sys_session` CHANGE  `session_id`  `session_id` VARCHAR( 64 ) CHARACTER SET latin1 COLLATE latin1_swedish_ci NOT NULL;