******************************************************* Julian Grunnell Unix Analyst TD Waterhouse International Leeds, West Yorkshire Tel: 0113 346 2824 Extn: 32824 Mobex: 52824 ******************************************************* <table width=100%> <tr valign=top> <td width=40%>Yueh-Hung Liu <yuehung.liu@gmail.com> 09/02/2011 13:26 <table border> <tr valign=top> <td bgcolor=white> <div align=center>Please respond to Nagios Users List <nagios-users@lists.sourceforge.net></div></table> <td width=59%> <table width=100%> <tr valign=top> <td> <div align=right>To</div> <td>Nagios Users List <nagios-users@lists.sourceforge.net> <tr valign=top> <td> <div align=right>cc</div> <td> <tr valign=top> <td> <div align=right>Subject</div> <td>Re: [Nagios-users] Understanding Unhandled Services / Hosts</table> <table> <tr valign=top> <td> <td></table> </table> <tt>because the host is down, it assumes all its service are also unavailable. therefore the first priority task is to "handle" the problem of the host. so what i guess is just for simplifying display, only the host which is down appears in Unhandled section. On Wed, Feb 9, 2011 at 8:16 PM, <Julian_Grunnell@tdwh.co.uk> wrote: > > Hi - would someone be able to explain in detail the behaviour of this? I > have a Nagios setup that in the Problems page is showing a host as DOWN - > it's currently failing my default FPING test. It also has a number of simple > check_tcp commands run against it, all of which are timing out because > obviously with the host down I'm getting a "CRITICAL - Socket timeout after > 10 seconds" for them all. BUT when looking in Unhandled Services they don't > appear. The host itself DOES appear in the Unhandled Hosts screen. There are > NO comments / acknowledgements in place at all for this host. > > Does anyone know why the service checks don't appear as an Unhandled > Service? > > Thanks - J. > </tt> <tt>Thanks, your explanation does make sense as at the time I'd not acknowledged it, no scheduled downtime or anything. I'll just have to keep an eye on it for when this happens again or I'll simulate an error when I get time. I can just about remember that with the HOST critical it appeared in the "unhandled Hosts" section. And looking at the "Service Status Details" page the "Attempt" column remained on "1/3" whilst the host was DOWN. So it certainly was as if the HOST is DOWN so there is no point in it trying to perform any Service checks as these are always going to fail.</tt> <tt>Julian.</tt> -------------------------------------------------------------------------------- Consider the environment. Please don't print this e-mail unless you really need to. Confidentiality: This email and its attachments are intended for the above named only and may be confidential. If they have come to you in error you must take no action based on them, nor must you copy or show them to anyone; please reply to this email and highlight the error. Viruses: Although we have taken steps to ensure that this email and attachments are free from any virus, we advise that in keeping with good computing practice the recipient should ensure that they are actually virus-free. Brokerage services provided by TD Waterhouse Investor Services (Europe) Limited (a subsidiary of The Toronto-Dominion Bank). Authorised and regulated by the Financial Services Authority (FSA registered number 141282), member of the London Stock Exchange and the PLUS market. Incorporated in England and Wales under registration number 2101863. Registered office: Exchange Court, Duncombe Street, Leeds LS1 4AX. Banking services provided by TD Waterhouse Bank N.V. authorised and regulated by De Nederlandsche Bank and the Financial Services Authority for UK Business (FSA registered number 216791). Incorporated in the Netherlands and registered as a branch in England and Wales under branch registration number BR006780. --------------------------------------------------------------------------------