<html xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv=Content-Type content="text/html; charset=windows-1252">
<meta name=Generator content="Microsoft Word 11 (filtered medium)">
<style>
<!--
/* Font Definitions */
@font-face
        {font-family:SimSun;
        panose-1:2 1 6 0 3 1 1 1 1 1;}
@font-face
        {font-family:"Bitstream Vera Serif";
        panose-1:2 6 6 3 5 6 5 2 2 4;}
@font-face
        {font-family:Tahoma;
        panose-1:2 11 6 4 3 5 4 4 2 4;}
@font-face
        {font-family:"\@SimSun";
        panose-1:0 0 0 0 0 0 0 0 0 0;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
        {margin:0in;
        margin-bottom:.0001pt;
        font-size:12.0pt;
        font-family:"Bitstream Vera Serif";}
a:link, span.MsoHyperlink
        {color:blue;
        text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
        {color:navy;
        text-decoration:underline;}
span.EmailStyle17
        {mso-style-type:personal-compose;
        font-family:Tahoma;
        color:windowtext;
        font-weight:normal;
        font-style:normal;
        text-decoration:none none;}
@page Section1
        {size:8.5in 11.0in;
        margin:1.0in 1.25in 1.0in 1.25in;}
div.Section1
        {page:Section1;}
-->
</style>
</head>
<body lang=EN-US link=blue vlink=navy>
<div class=Section1>
<p class=MsoNormal><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma'>Hi,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma'>I’m trying to get dynamic configuration to work in Spread
and I’ve run into some quirky behavior. The symptom is that if I have a single
host listed in the configuration file, then add a new host, issue the reload
command using spmonitor, and start Spread on the new host, the first host does
not see any messages from the second host. If I then restart Spread on the
first host, everything starts working properly.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma'>My suspicion (without looking at the code) is that Spread doesn’t
listen on the multicast address (I’m using 239.255.0.1) if there is only a
single entry in the config file. However, after the reload, it *<b><span
style='font-weight:bold'>should</span></b>* start listening on that address,
since there are now two entries. If it doesn’t, then it can’t communicate with
the other host unless the daemon is restarted.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma'>To test this theory, I added a dummy entry to the original
config file, so I’m now going from 2 to 3 daemons instead of from 1 to 2. The
reconfiguration works flawlessly now. Is this just a coincidence, or is my
suspicion correct? Is this a bug in Spread or is it expected behavior?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma'>Thanks,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma'>Mike<o:p></o:p></span></font></p>
</div>
</body>
</html>