If you by mistake (or when testing) add a subcluster with an agent starting with a dot, vsmserver will fail to start. You get the following traceback in vsmserver.log: > Traceback (most recent call last): > File "/usr/lib64/python3.10/encodings/idna.py", line 163, in encode > raise UnicodeError("label empty or too long") > UnicodeError: label empty or too long > > The above exception was the direct cause of the following exception: > > Traceback (most recent call last): > File "/opt/thinlinc/sbin/vsmserver", line 18, in <module> > OOoOoo000O00 ( ) > File "/opt/thinlinc/sbin/vsmserver", line 15, in OOoOoo000O00 > VSMServer ( sys . argv ) > File "/opt/thinlinc/modules/thinlinc/vsm/vsmserver.py", line 168, in __init__ > self . loop ( ) > File "/opt/thinlinc/modules/thinlinc/vsm/asyncbase.py", line 426, in loop > OooO0O00o0 = self . run_delayed_calls ( ) > File "/opt/thinlinc/modules/thinlinc/vsm/asyncbase.py", line 384, in run_delayed_calls > I1I1IIi1IIIi . func ( * I1I1IIi1IIIi . args , ** I1I1IIi1IIIi . kw ) > File "/opt/thinlinc/modules/thinlinc/vsm/loadbalancer.py", line 198, in periodic_update > GetLoadCall ( OO00OOooO , ii , self . periodic_update , > File "/opt/thinlinc/modules/thinlinc/vsm/call_getload.py", line 25, in __init__ > self . xmlrpc_call ( 'get_load' ) > File "/opt/thinlinc/modules/thinlinc/vsm/xmlrpc.py", line 335, in xmlrpc_call > self . create_xmlrpc_call ( methodname , params ) > File "/opt/thinlinc/modules/thinlinc/vsm/xmlrpc.py", line 363, in create_xmlrpc_call > oO0 += b"Host: " + self . url [ 1 ] . encode ( "idna" ) + b"\r\n" > UnicodeError: encoding with 'idna' codec failed (UnicodeError: label empty or too long)