[SAC] Re: [OSGeo] #489: Display server load info in Trac

[OSGeo]

#489: Display server load info in Trac
--------------------------+-------------------------------------------------
  Reporter:  mloskot      |       Owner:  sac at lists.osgeo.org
      Type:  enhancement  |      Status:  new                
  Priority:  normal       |   Component:  SAC                
Resolution:               |    Keywords:  trac               
--------------------------+-------------------------------------------------
Comment (by mloskot):

 I've got in touch with administrators of Boost Trac and they were very
 kind to provide me with details. Here we go:

  * They confirmed server load issues:

  ''Yes, we were experiencing the load issues in the Boost Trac even though
 we are hosting one Trac instance in our server for now. I think the load
 issues are from the web spider crawling the huge boost SVN repository
 tree. We disallowed the crawling and we will start to open up little by
 little watching the load average.''

  * How to set up the server load display

 This is based on their customized template(theme.html) in the Trac. They
 put the following code in ''boost_trac_path/templates/theme.html'' of trac
 instance after copying it from the Trac installation tree to
 ''boost_trac_path/templates'':

 {{{
    <div id="main">
       <div id="ctxtnav" class="nav">
         <h2>Context Navigation</h2>
           <ul>
               <li py:for="i, elm in enumerate(chrome.ctxtnav)"
                   class="${classes(first_last(i,
 chrome.ctxtnav))}">$elm</li>
     <!-- Added for displaying load average -->
        <?python
        f = open(r'/path/to/file/loadaverage.txt')
        loadavg = f.read()
        f.close()
        ?>
        <py:if test="loadavg" >
               <li class="last">Server Load Average:
           <b>${loadavg}</b>
               </li>
        </py:if>
     <!-- Added for displaying load average -->
           </ul>
         <hr />
       </div>
 }}}

 Next, they configure set up a cronjob to generate the loadaverage on
 ''/path/to/file/loadaverage.txt'' at every 10 mins.

 {{{
 [19:03]: templates % cat /path/to/file/loadaverage.txt
 1.03
 [19:03]: templates %
 }}}

 That's it and thanks to Boost admins!

-- 
Ticket URL: <http://trac.osgeo.org/osgeo/ticket/489#comment:2>
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