We are having issues with xymonnet handing on 4.3.12 (happened on 4.3.10 too). As soon as we added an ldap check which can hang (due to the ldap server being in a bad state), xymonnet hangs and goes purple on all remote checks.
Nothing shows in the logs. Here is the historical xymonnet info from the last purple:
Wed Oct 30 12:12:10 2013
xymonnet version 4.3.12 SSL library : OpenSSL 1.0.1e 11 Feb 2013 LDAP library: OpenLDAP 20431
Statistics: Hosts total : 70 Hosts with no tests : 1 Total test count : 183 Status messages : 183 Alert status msgs : 0 Transmissions : 3
DNS statistics:
hostnames resolved : 115
succesful : 69
failed : 0
calls to dnsresolve : 182
TCP test statistics:
TCP tests total : 113
HTTP tests : 45
Simple TCP tests : 68
Connection attempts : 113
bytes written : 7192
bytes read : 528667
TIME SPENT Event Start time Duration xymonnet startup 1383135130.081755 - Service definitions loaded 1383135130.089141 0.007386 Tests loaded 1383135130.147247 0.058106 DNS lookups completed 1383135130.147712 0.000465 Test engine setup completed 1383135130.159468 0.011756 TCP tests completed 1383135142.406914 12.247446 PING test completed (69 hosts) 1383135149.073309 6.666395 PING test results sent 1383135149.074005 0.000696 Test result collection completed 1383135149.075192 0.001187 LDAP test engine setup completed 1383135149.075263 0.000071 LDAP tests executed 1383135151.403612 2.328349 LDAP tests result collection completed 1383135151.403621 0.000009 Test results transmitted 1383135151.405148 0.001527 xymonnet completed 1383135151.407244 0.002096 TIME TOTAL 21.325489
-- Thomas Vachon