<html xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<meta name="Title" content="">
<meta name="Keywords" content="">
<meta name="Generator" content="Microsoft Word 15 (filtered medium)">
<style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:"Times New Roman";}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
span.EmailStyle17
{mso-style-type:personal-reply;
font-family:Calibri;
color:windowtext;}
span.msoIns
{mso-style-type:export-only;
mso-style-name:"";
text-decoration:underline;
color:teal;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
--></style>
</head>
<body bgcolor="white" lang="EN-US" link="blue" vlink="purple">
<div class="WordSection1">
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri">Systemd logs all python output by default, if you have rsyslog to pull from the systemd as well you can get double logging. I think you need to execute under systemd with: StandardOutput=null
in the unit file under the [service] heading. Atleast that’s what we do. <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri">Disclaimer: we don’t run rsyslog but use file output (and we are running CentOS7). Our problem was that we got debug level messages to /var/log/messages and the correct loglevel in /var/log/nova/nova-compute.log
Telling system to not ouput logs prevented that from happening.<o:p></o:p></span></p>
<div>
<div>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:Calibri;color:black"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:Calibri;color:black">___________________________________________________________________<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:Calibri;color:black">Kris Lindgren<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:Calibri;color:black">Senior Linux Systems Engineer<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:Calibri;color:black">GoDaddy</span><span style="font-size:11.0pt;font-family:Calibri"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri"><o:p> </o:p></span></p>
<div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b><span style="font-family:Calibri;color:black">From: </span>
</b><span style="font-family:Calibri;color:black">Gustavo Randich <gustavo.randich@gmail.com><br>
<b>Date: </b>Tuesday, August 9, 2016 at 3:52 PM<br>
<b>To: </b>"openstack-operators@lists.openstack.org" <openstack-operators@lists.openstack.org><br>
<b>Subject: </b>[Openstack-operators] systemd and duplicate logs -- /var/log/syslog and /var/log/nova/nova-compute.log<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<div>
<div>
<div>
<p class="MsoNormal">Hi guys,<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">We want to be able to forward nova-compute's log to a central rsyslog but at the same time mantain the local "/var/log/nova/nova-compute.log". In Icehouse we achieved this with the following configuration in "/etc/rsyslog.d/60-nova.conf":<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<blockquote style="margin-left:30.0pt;margin-right:0in">
<div>
<div>
<p class="MsoNormal">*.*;local0.none,auth,authpriv.none -/var/log/syslog<o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class="MsoNormal">local0.* @@<a href="http://10.161.0.1:1024">10.161.0.1:1024</a><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class="MsoNormal">local0.* /var/log/nova/nova-compute.log<o:p></o:p></p>
</div>
</div>
</blockquote>
<div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
</div>
<div>
<p class="MsoNormal">We also had to comment this line in "/etc/rsyslog.d/50-default.conf" (reference: <a href="https://www.osso.nl/blog/rsyslog-cron-deleting-rules">https://www.osso.nl/blog/rsyslog-cron-deleting-rules</a>)<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<blockquote style="margin-left:30.0pt;margin-right:0in">
<div>
<p class="MsoNormal">*.*;auth,authpriv.none -/var/log/syslog<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
</blockquote>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<p class="MsoNormal">Now, in Mitaka / Ubuntu 16 / systemd, with this same configuration, we are getting duplicate logs: every line goes to /var/log/syslog and /var/log/nova/nova-compute.log
<o:p></o:p></p>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">We want to only log in nova-compute.log<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<div>
<p class="MsoNormal">Maybe this is because systemd is forwarding everything to rsyslog? By default, /etc/systemd/journald.conf has "ForwardToSyslog=yes"<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
</div>
<div>
<p class="MsoNormal">thanks!<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">Gustavo<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
</div>
</div>
</div>
</div>
</body>
</html>