Just configured two host and began getting these errors.  Log as follows…

Nothing gets updated to the system at this point

 cd /var/www/kontrollbase/bin/ && /var/www/kontrollbase/bin/kontroll-reporter-5.0.x_linux-x86-2.0.1.pl
Useless use of private variable in void context at /var/www/kontrollbase/bin/kontroll-reporter-5.0.x_linux-x86-2.0.1.pl line 138.     
Useless use of private variable in void context at /var/www/kontrollbase/bin/kontroll-reporter-5.0.x_linux-x86-2.0.1.pl line 138.     
2010-02-04 14:11:36 | DEBUG | reporter-5.0.x_linux-x86: #### reporter process start                                                   
2010-02-04 14:11:36 | DEBUG | reporter-5.0.x_linux-x86: working on Mark Burgo,12, burgo-755                                           

Argument “Host: burgo-755 User:root,Host: 127.0.0.1 User:root,” isn't numeric in numeric eq (==) at /var/www/kontrollbase/bin/kontroll-reporter-5.0.x_linux-x86-2.0.1.pl line 1931.                                                                                                                                                               
2010-02-04 14:11:38 | DEBUG | reporter-5.0.x_linux-x86: truncating tmp/kontrollbase-reporter-2010-02-04141136.log                                                        
######################ENTERED report                                                                                                                                     
2010-02-04 14:11:38 | DEBUG | reporter-5.0.x_linux-x86: working on Mark Burgo,13, mysql1                                                                                 

2010-02-04 14:11:38 | DEBUG | reporter-5.0.x_linux-x86: #### reporter process end
kontrollbase@burgo-755:/var/www/kontrollbase/bin$ cd /var/www/kontrollbase/bin/ && /var/www/kontrollbase/bin/kontroll-server_loop-5.0.x_linux-x86-2.0.1.pl
2010-02-04 14:13:21 | DEBUG | server-loop-5.0.x_linux-x86: LOG TRUNCATED                                                                                  
2010-02-04 14:13:21 | DEBUG | server-loop-5.0.x_linux-x86: #### server-loop process start                                                                 

EXEC kontroll-client-5.0.x_linux-x86-2.0.1.pl client script for host: burgo-755 kontrollbase@127.0.0.1
EXEC stats gather script for host: burgo-755 kontrollbase@127.0.0.1 active: 1
2010-02-04 14:13:22 | DEBUG | stats-gather-5.0.x_linux-x86: ## process start
2010-02-04 14:13:22 | DEBUG | stats-gather-5.0.x_linux-x86: burgo-755 [starting]
2010-02-04 14:13:22 | DEBUG | stats-gather-5.0.x_linux-x86: burgo-755 xml datetime = 2010-02-04 14:13:22
2010-02-04 14:13:23 | DEBUG | stats-gather-5.0.x_linux-x86: burgo-755 queries/sec=0.0151061077598904
2010-02-04 14:13:23 | DEBUG | stats-gather-5.0.x_linux-x86: total ram='4021026816'
2010-02-04 14:13:23 | DEBUG | stats-gather-5.0.x_linux-x86: burgo-755 Collection time: 0.063227 seconds
2010-02-04 14:13:23 | DEBUG | stats-gather-5.0.x_linux-x86: burgo-755 [success]
2010-02-04 14:13:23 | ERROR | stats-gather-5.0.x_linux-x86: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '.0.1.xml,
'#\n# The MySQL database server configuration file.\n#\n# You can copy' at line 503
2010-02-04 14:13:23 | DEBUG | stats-gather-5.0.x_linux-x86: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '.0.1.xml,
'#\n# The MySQL database server configuration file.\n#\n# You can copy' at line 503

EXEC kontroll-client-5.0.x_linux-x86-2.0.1.pl client script for host: mysql1 kontrollbase@10.98.2.147
EXEC stats gather script for host: mysql1 kontrollbase@10.98.2.147 active: 1
2010-02-04 14:13:26 | DEBUG | stats-gather-5.0.x_linux-x86: ## process start
2010-02-04 14:13:26 | DEBUG | stats-gather-5.0.x_linux-x86: mysql1 [starting]
2010-02-04 14:13:26 | DEBUG | stats-gather-5.0.x_linux-x86: mysql1 xml datetime = 2010-02-04 14:13:24
2010-02-04 14:13:28 | DEBUG | stats-gather-5.0.x_linux-x86: mysql1 queries/sec=288.01863368317
2010-02-04 14:13:28 | DEBUG | stats-gather-5.0.x_linux-x86: total ram='4154224640'
2010-02-04 14:13:28 | DEBUG | stats-gather-5.0.x_linux-x86: mysql1 Collection time: 2.133478 seconds
2010-02-04 14:13:28 | DEBUG | stats-gather-5.0.x_linux-x86: mysql1 [success]
2010-02-04 14:13:28 | ERROR | stats-gather-5.0.x_linux-x86: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '.2.147.xml,
'#\n# The MySQL database server configuration file.\n#\n# You can co' at line 503
2010-02-04 14:13:28 | DEBUG | stats-gather-5.0.x_linux-x86: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '.2.147.xml,
'#\n# The MySQL database server configuration file.\n#\n# You can co' at line 503
2010-02-04 14:13:28 | DEBUG | server-loop-5.0.x_linux-x86: #### server-loop process end

Any ideas  these are mysql 5.1 servers  Just localhost was working until I added the second host…..

For reference, this has been fixed in revision 284 – new vtypes have been added to the forms on all add and edit view pages so that you cannot put spaces in places where no spaces are allowed. in addition new vtypes have been added to control IP address fields, port fields, password, and hostname fields.