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Hi, Steven!<br>
<br>
This is not wrong, this is the desired behaviour in order to use the
failover features.<br>
I see that you have only one destination in group 2. Will this be
the final scenario? If yes, then you shouldn't use load balance, but
a simple RURI rewriting.<br>
However, if you want to use multiple gateways from failure route,
there is a hack you can do, but I don't recommend it. You can reset
the <b>lb_mask</b>, <b>lb_id</b> and <b>lb_grp</b> AVPs just
before calling the load_balance function.<br>
<br>
Regards,<br>
<pre class="moz-signature" cols="72">--
Răzvan Crainea
OpenSIPS Developer</pre>
<br>
On 01/03/2012 02:34 PM, Steven Lam, KeenSystems B.V. wrote:
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<p class="MsoNormal"><span style="color:#1F497D">Is nobody using
this? :-(<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-US">I
really want to know if I'm doing something wrong here…<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-US">Steven<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif";mso-fareast-language:NL"
lang="EN-US">From:</span></b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif";mso-fareast-language:NL"
lang="EN-US"> <a class="moz-txt-link-abbreviated" href="mailto:users-bounces@lists.opensips.org">users-bounces@lists.opensips.org</a>
[<a class="moz-txt-link-freetext" href="mailto:users-bounces@lists.opensips.org">mailto:users-bounces@lists.opensips.org</a>] <b>On
Behalf Of </b>Steven Lam, KeenSystems B.V.<br>
<b>Sent:</b> donderdag 29 december 2011 14:48<br>
<b>To:</b> <a class="moz-txt-link-abbreviated" href="mailto:users@lists.opensips.org">users@lists.opensips.org</a><br>
<b>Subject:</b> [OpenSIPS-Users] load_balance not
using group id in failure route<o:p></o:p></span></p>
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</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"">Hi all,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"" lang="EN-US">Using the load balancer on
OpenSIPS 1.7.1 I found that when calling load_balance in a
failure_route with a group other than the one on the
initial call, the load_balance still uses the “old” group.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"" lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"" lang="EN-US">For example:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"" lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"" lang="EN-US">The table looks like this:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"" lang="EN-US">+----+----------+------------------+-----------+<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"" lang="EN-US">| id | group_id | dst_uri
| resources |<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"" lang="EN-US">+----+----------+------------------+-----------+<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"" lang="EN-US">| 1 | 1 |
<a moz-do-not-send="true" href="sip:192.168.9.22">sip:192.168.9.22</a>
| all=10 |<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"" lang="EN-US">| 2 | 1 |
<a moz-do-not-send="true" href="sip:192.168.9.27">sip:192.168.9.27</a>
| all=20 |<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"" lang="EN-US">| 3 | 2 |
<a moz-do-not-send="true" href="sip:192.168.9.18">sip:192.168.9.18</a>
| all=10 |<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"" lang="EN-US">+----+----------+------------------+-----------+<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"" lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"" lang="EN-US">Script looks like this:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"" lang="EN-US">...<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"" lang="EN-US">if ( load_balance("1","all") ) {<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"" lang="EN-US"> xlog("==================>
Destination is $du\n");<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"" lang="EN-US"> t_on_failure("1");<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"" lang="EN-US"> t_relay();<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"" lang="EN-US"> exit;<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"" lang="EN-US">}<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"" lang="EN-US">...<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"" lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"" lang="EN-US">failure_route[1] {<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"" lang="EN-US"> lb_disable();<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"" lang="EN-US"> if ( load_balance("2","all") ) {<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"" lang="EN-US"> t_on_failure("1");<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"" lang="EN-US"> xlog("==================>
New destination is $du\n");<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"" lang="EN-US"> t_relay();<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"" lang="EN-US"> } else {<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"" lang="EN-US"> t_reply("500","Error");<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"" lang="EN-US"> }<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"" lang="EN-US">}<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"" lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"" lang="EN-US">This will result in routing a
INVITE to
<a moz-do-not-send="true" href="sip:192.168.9.27">sip:192.168.9.27</a>,
when this fails the INVITE will be routed to
<a moz-do-not-send="true" href="sip:192.168.9.22">sip:192.168.9.22</a>
_<i>NOT</i>_ 192.168.9.18. To me this looks wrong.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"" lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"" lang="EN-US">Is this by design? If so how can I
force load_balance to use a uri from group 2 after using
one from group 1?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"" lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"" lang="EN-US">Hope someone can give me some
advice on this.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"" lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"" lang="EN-US">Steven<o:p></o:p></span></p>
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