<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD><TITLE>Message</TITLE> <META http-equiv=Content-Type content="text/html; charset=us-ascii"> <META content="MSHTML 6.00.2800.1544" name=GENERATOR></HEAD> <BODY> <DIV>I'm no expert in python or passive results, however you appear to be opening the file for write access. Have you tried opening for append (w+ perhaps?)</DIV> <DIV> </DIV> <DIV>--</DIV> "Even if you're on the right track, you'll get run over if you just sit there." Paul Weaver Systems Development Engineer News Production Facilities, BBC News Work: 020 8225 8109 Mobile: 07738 481006 Room 1244, BBC Television Centre, Wood Lane, London, W12 7RJ <BLOCKQUOTE dir=ltr style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #0000ff 2px solid; MARGIN-RIGHT: 0px"> <DIV></DIV> <DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left>-----Original Message----- From: nagios-users-bounces@lists.sourceforge.net [mailto:nagios-users-bounces@lists.sourceforge.net] On Behalf Of pankaj.dhali@wipro.com Sent: 25 September 2007 15:39 To: nagios-users@lists.sourceforge.net Subject: [Nagios-users] FW: Nagios: Error while writing to pipe </DIV> <DIV dir=ltr align=left> </DIV> <DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left>Hi All,</DIV> <DIV> I am new to Nagios, I am trying to receive SNMP Trap from Windows client machine. I am using Python script to see how Nagios can create an event/alert</DIV> <DIV>by checking Passive Service Check Result submitted by this script. </DIV> <DIV> I have attached the Python script which is used write "Passive Service check Result" to Nagios external command file</DIV> <DIV>for creating an alert/event. But when I run this script </DIV> <DIV> </DIV> <DIV>--------------------------------------------------</DIV> <DIV> [root@Symbol eventhandlers]# pwd /usr/local/nagios/libexec/eventhandlers [root@Symbol eventhandlers]# python snmptraphandling.py 10.207.40.203 CRITICAL 12 2 [root@Symbol eventhandlers]#</DIV> <DIV>---------------------------------------------</DIV> <DIV> </DIV> <DIV> </DIV> <DIV>I get following error:</DIV> <DIV> </DIV> <DIV>[root@Symbol rw]# tail -f nagios.cmd</DIV> <DIV> [1190731734] PROCESS_SERVICE_CHECK_RESULT;10.207.40.203;snmp_trap_handling_critical;2;" 12" tail: nagios.cmd: file truncated tail: nagios.cmd: cannot seek to offset 0: Illegal seek [root@Symbol rw]# -------------------------------------------------- nagios.cmd is a pipe: [root@Symbol rw]# ls -l <DIV> total 0 prw-rw---- 1 nagios nagcmd 0 Sep 25 20:18 nagios.cmd [root@Symbol rw]# [root@Symbol rw]# pwd /usr/local/nagios/var/rw why I am getting Illegal seek error. I have tried to use this script to a normal read write file and it works fine, but while writing to a pipe it is showing error. If the problem is due to the script then it could be here output = open('/usr/local/nagios/var/rw/nagios.cmd', 'w') print return_code results = "[" + mytime + "] " + "PROCESS_SERVICE_CHECK_RESULT;" \ + host + ";" + "snmp_trap_handling_" + service_suffix + ";" \ + return_code + ";" + mondata_res + "\n" output.write(results) It could be file(pipe) permission problem, I have no idea. <TT></TT><TT>I have followed below link to give permission to nagios.cmd</TT> <TT><A href="http://nagios.sourceforge.net/docs/2_0/commandfile.html">http://nagios.sourceforge.net/docs/2_0/commandfile.html</A> </TT><PRE style="MARGIN: 0em"></PRE> Thanks & Regards, Pankaj </DIV> </DIV></BLOCKQUOTE> <a href="http://www.bbc.co.uk">http://www.bbc.co.uk</a> This e-mail (and any attachments) is confidential and may contain personal views which are not the views of the BBC unless specifically stated. If you have received it in error, please delete it from your system. Do not use, copy or disclose the information in any way nor act in reliance on it and notify the sender immediately. Please note that the BBC monitors e-mails sent or received. Further communication will signify your consent to this.</BODY></HTML>