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<p class="MsoNormal"><span style="color:#1F497D">Hi Răzvan,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">Okay, thank you!<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">I'll investigate what I can do with the dispatcher.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Steven<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext;mso-fareast-language:NL">From:</span></b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext;mso-fareast-language:NL">
users-bounces@lists.opensips.org [mailto:users-bounces@lists.opensips.org] <b>On Behalf Of
</b>Razvan Crainea<br>
<b>Sent:</b> dinsdag 3 januari 2012 15:41<br>
<b>To:</b> users@lists.opensips.org<br>
<b>Subject:</b> Re: [OpenSIPS-Users] load_balance not using group id in failure route<o:p></o:p></span></p>
</div>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Hi, Steven!<br>
<br>
This is not strange, the usual scenario is to do failover within the gateways from the same group. My question is that if you have only one resource, why don't you use the dispatcher[1] module? I think it will meet better your requirements, as load balancer
is usually used when you want to dispatch requests based on multiple resources. Also, there you can disable the automatic failover behavior.<br>
<br>
[1] <a href="http://www.opensips.org/html/docs/modules/1.7.x/dispatcher.html">http://www.opensips.org/html/docs/modules/1.7.x/dispatcher.html</a><br>
<br>
Regards,<br>
<br>
<o:p></o:p></p>
<pre>--<o:p></o:p></pre>
<pre>Răzvan Crainea<o:p></o:p></pre>
<pre>OpenSIPS Developer<o:p></o:p></pre>
<p class="MsoNormal"><br>
On 01/03/2012 04:31 PM, Steven Lam, KeenSystems B.V. wrote: <o:p></o:p></p>
<p class="MsoNormal"><span style="color:#1F497D">Hi Răzvan,</span><o:p></o:p></p>
<p class="MsoNormal"><span style="color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">Thank you for your answer!</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">The table was just for illustrating the problem as simple as possible…</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">What I want to achieve is this: 3 servers for everyday use and 2 servers for fallback, so simple RURI rewriting won’t do the trick :-(</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">Can you tell me what the problem is with resetting the AVPs?</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">It is good to hear it is not a bug, but this makes me thinking… in this example the resources in all groups are “all”. If I change the one from group 2 to “foobar” and then call load_balance in the
failure_route like “load_balance("2","foobar")”, I get a line telling me resource “foobar” is not found in group 1???</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">So in a failure_route load_balance does care about the resource and does NOT care about the group number, is this not strange?</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="color:#1F497D">Steven</span><o:p></o:p></p>
<p class="MsoNormal"><span style="color:#1F497D"> </span><o:p></o:p></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext;mso-fareast-language:NL">From:</span></b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext;mso-fareast-language:NL">
<a href="mailto:users-bounces@lists.opensips.org">users-bounces@lists.opensips.org</a> [<a href="mailto:users-bounces@lists.opensips.org">mailto:users-bounces@lists.opensips.org</a>]
<b>On Behalf Of </b>Razvan Crainea<br>
<b>Sent:</b> dinsdag 3 januari 2012 14:36<br>
<b>To:</b> <a href="mailto:users@lists.opensips.org">users@lists.opensips.org</a><br>
<b>Subject:</b> Re: [OpenSIPS-Users] load_balance not using group id in failure route</span><o:p></o:p></p>
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</div>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">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>
<br>
<br>
<o:p></o:p></p>
<pre>--<o:p></o:p></pre>
<pre>Răzvan Crainea<o:p></o:p></pre>
<pre>OpenSIPS Developer<o:p></o:p></pre>
<p class="MsoNormal"><br>
On 01/03/2012 02:34 PM, Steven Lam, KeenSystems B.V. wrote: <o:p></o:p></p>
<p class="MsoNormal"><span style="color:#1F497D">Is nobody using this? :-(</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">I really want to know if I'm doing something wrong here…</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">Steven</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"> </span><o:p></o:p></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif";mso-fareast-language:NL">From:</span></b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif";mso-fareast-language:NL">
<a href="mailto:users-bounces@lists.opensips.org">users-bounces@lists.opensips.org</a> [<a 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 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</span><o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:"Courier New , serif","serif"">Hi all,</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:"Courier New , serif","serif""> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New , serif","serif"">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.</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New , serif","serif""> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New , serif","serif"">For example:</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New , serif","serif""> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New , serif","serif"">The table looks like this:</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New , serif","serif"">+----+----------+------------------+-----------+</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New , serif","serif"">| id | group_id | dst_uri | resources |</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New , serif","serif"">+----+----------+------------------+-----------+</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New , serif","serif"">| 1 | 1 |
<a href="sip:192.168.9.22">sip:192.168.9.22</a> | all=10 |</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New , serif","serif"">| 2 | 1 |
<a href="sip:192.168.9.27">sip:192.168.9.27</a> | all=20 |</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New , serif","serif"">| 3 | 2 |
<a href="sip:192.168.9.18">sip:192.168.9.18</a> | all=10 |</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New , serif","serif"">+----+----------+------------------+-----------+</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New , serif","serif""> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New , serif","serif"">Script looks like this:</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New , serif","serif"">...</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New , serif","serif"">if ( load_balance("1","all") ) {</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New , serif","serif""> xlog("==================> Destination is $du\n");</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New , serif","serif""> t_on_failure("1");</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New , serif","serif""> t_relay();</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New , serif","serif""> exit;</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New , serif","serif"">}</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New , serif","serif"">...</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New , serif","serif""> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New , serif","serif"">failure_route[1] {</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New , serif","serif""> lb_disable();</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New , serif","serif""> if ( load_balance("2","all") ) {</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New , serif","serif""> t_on_failure("1");</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New , serif","serif""> xlog("==================> New destination is $du\n");</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New , serif","serif""> t_relay();</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New , serif","serif""> } else {</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New , serif","serif""> t_reply("500","Error");</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New , serif","serif""> }</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New , serif","serif"">}</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New , serif","serif""> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New , serif","serif"">This will result in routing a INVITE to
<a href="sip:192.168.9.27">sip:192.168.9.27</a>, when this fails the INVITE will be routed to
<a href="sip:192.168.9.22">sip:192.168.9.22</a> _<i>NOT</i>_ 192.168.9.18. To me this looks wrong.</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New , serif","serif""> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New , serif","serif"">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?</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New , serif","serif""> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New , serif","serif"">Hope someone can give me some advice on this.</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New , serif","serif""> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New , serif","serif"">Steven</span><o:p></o:p></p>
</div>
<p class="MsoNormal"><span style="font-size:12.0pt"><br>
<br>
<br>
<br>
</span><o:p></o:p></p>
<pre>_______________________________________________<o:p></o:p></pre>
<pre>Users mailing list<o:p></o:p></pre>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif";mso-fareast-language:NL"><br>
<br>
<br>
<o:p></o:p></span></p>
<pre>_______________________________________________<o:p></o:p></pre>
<pre>Users mailing list<o:p></o:p></pre>
<pre><a href="mailto:Users@lists.opensips.org">Users@lists.opensips.org</a><o:p></o:p></pre>
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