<html> <head> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=us-ascii"> <meta name=Generator content="Microsoft Word 10 (filtered)"> <style>  </style> </head> <body lang=EN-US link=blue vlink=purple> <div class=Section1> <p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size: 10.0pt;font-family:Arial;color:navy'>Hello,</span></font></p> <p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size: 10.0pt;font-family:Arial;color:navy'> </span></font></p> <p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size: 10.0pt;font-family:Arial;color:navy'>I did not get any response to this message and I was hoping to receive feedback. Thank you. Your help is greatly appreciated.</span></font></p> <p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size: 10.0pt;font-family:Arial;color:navy'> </span></font></p> <p class=MsoNormal style='margin-left:.5in'><font size=2 face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>-----Original Message-----<br> <b><span style='font-weight:bold'>From:</span></b> Platt, Nicholas [mailto:Nick.Platt@myflorida.com] <br> <b><span style='font-weight:bold'>Sent:</span></b> Tuesday, April 06, 2004 1:45 PM<br> <b><span style='font-weight:bold'>To:</span></b> 'nagios-users@lists.sourceforge.net'<br> <b><span style='font-weight:bold'>Subject:</span></b> [Nagios-users] Host and service flap detection threshold value recommendation</span></font></p> <p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span style='font-size:12.0pt'> </span></font></p> <p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>Hello:</span></font></p> <p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> </span></font></p> <p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>Lately we been getting pages for small timeouts that have caused notifications to be sent out. I decided to enable flap detection. After reading the documentation, I understood the strategy, but did not have any clue where to start the values at for low and high flap thresholds. I decided to use the values that were in the documentation, but does anyone have any recommendations based on experience of what values I should use. Currently, I have every host and service set to:</span></font></p> <p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> </span></font></p> <p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> </span></font></p> <p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> </span></font></p> <p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> </span></font></p> <p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>define service{</span></font></p> <p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> use generic-service</span></font></p> <p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> host_name SUNBOX</span></font></p> <p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> service_description Load</span></font></p> <p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> is_volatile 0</span></font></p> <p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> check_period 24x7</span></font></p> <p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> max_check_attempts 3</span></font></p> <p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> normal_check_interval 1</span></font></p> <p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> retry_check_interval 1</span></font></p> <p class=MsoNormal style='margin-left:.5in'><b><font size=2 color=red face=Arial><span style='font-size:10.0pt;font-family:Arial;color:red; font-weight:bold'> low_flap_threshold 25</span></font></b></p> <p class=MsoNormal style='margin-left:.5in'><b><font size=2 color=red face=Arial><span style='font-size:10.0pt;font-family:Arial;color:red; font-weight:bold'> high_flap_threshold 50</span></font></b></p> <p class=MsoNormal style='margin-left:.5in'><b><font size=2 color=red face=Arial><span style='font-size:10.0pt;font-family:Arial;color:red; font-weight:bold'> flap_detection_enabled 1</span></font></b></p> <p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> contact_groups HelpDesk,sun-admins</span></font></p> <p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> notification_interval 60</span></font></p> <p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> notification_period 24x7</span></font></p> <p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> notification_options c,u,r</span></font></p> <p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> check_command check_nrpe!check_load</span></font></p> <p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> }</span></font></p> </div> </body> </html>