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<p class="MsoNormal"><span style="font-size:11.0pt">Have you checked the logs on node 2 from the time the call was placed? When we tried this we found that node 2 was refusing the dialog because the IP address of the socket for the dialog was not configured
locally. There was a log printed indicating this. It seems the dialog replication assumes a VIP/anycast setup where in order to “take over” the dialog the node has to also have a socket with the same IP.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">It was a while ago we tried this though so maybe that has changed.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">Ben Newlin</span><span style="font-size:11.0pt"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><b><span lang="EN-GB" style="font-size:12.0pt;color:black">From:
</span></b><span lang="EN-GB" style="font-size:12.0pt;color:black">Users <users-bounces@lists.opensips.org> on behalf of Ben Laing via Users <users@lists.opensips.org><br>
<b>Date: </b>Friday, June 6, 2025 at 9:26</span><span lang="EN-GB" style="font-size:12.0pt;font-family:"Arial",sans-serif;color:black"> </span><span lang="EN-GB" style="font-size:12.0pt;color:black">AM<br>
<b>To: </b>users@lists.opensips.org <users@lists.opensips.org><br>
<b>Subject: </b>[OpenSIPS-Users] Setting up dialog replication<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:12.0pt;font-family:"Calibri",sans-serif;color:#B60000"> EXTERNAL EMAIL - Please use caution with links and attachments <o:p></o:p></span></b></p>
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<p class="MsoNormal"><span lang="EN-GB" style="font-size:12.0pt;font-family:Helvetica"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span lang="EN-GB" style="font-size:12.0pt">Hello! <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:12.0pt"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:12.0pt">I am trying to set up an active/active OpenSIPS pair in AWS.
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:12.0pt"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:12.0pt">The AWS set up is two OpenSIPs (V3.4.12) running on EC2 instances in two different availability zones. There is then a network load balancer (NLB) in each availability zone that distributes traffic
to the two OpenSIPs nodes. <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:12.0pt"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:12.0pt">I am trying to set up dialog sharing between the two nodes. The cluster appears to be healthy:<o:p></o:p></span></p>
<p class="MsoListParagraph" style="margin-left:1.0in;text-indent:-.25in;mso-list:l0 level1 lfo1">
<![if !supportLists]><span lang="EN-GB" style="font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span lang="EN-GB" style="font-size:12.0pt">both nodes are in cluster 1 with flag set to `seed`.<o:p></o:p></span></p>
<ul style="margin-top:0in" type="disc">
<li class="p1" style="mso-list:l0 level1 lfo1"><span class="s1"><span lang="EN-GB" style="font-size:12.0pt;font-family:"Aptos",sans-serif">opensips-cli -x mi clusterer_list_cap
</span></span><span class="apple-converted-space"><span lang="EN-GB" style="font-size:12.0pt;font-family:"Aptos",sans-serif"> shows dialog-dlg-repl / state Ok / enabled Yes</span></span><span lang="EN-GB"><o:p></o:p></span></li><li class="p1" style="mso-list:l0 level1 lfo1"><span class="s1"><span lang="EN-GB" style="font-size:12.0pt;font-family:"Aptos",sans-serif">opensips-cli -x mi clusterer_list – shows other node with link_state up, state enabled.</span></span><span lang="EN-GB"><o:p></o:p></span></li></ul>
<p class="p1"><span class="s1"><span lang="EN-GB" style="font-size:12.0pt;font-family:"Aptos",sans-serif"> </span></span><span lang="EN-GB"><o:p></o:p></span></p>
<p class="p1"><span class="s1"><span lang="EN-GB" style="font-size:12.0pt;font-family:"Aptos",sans-serif">My test to make a call through node 1, kill node 1, end the call with the BYE then going through node 2. When I try this, node 2 isn’t finding the dialog.
If I run dlg_list during the call (before killing node 1) the dlg is present on node 1 but not node 2. So it looks like the dialog replication isn’t working.</span></span><span lang="EN-GB"><o:p></o:p></span></p>
<p class="p1"><span class="s1"><span lang="EN-GB" style="font-size:12.0pt;font-family:"Aptos",sans-serif"> </span></span><span lang="EN-GB"><o:p></o:p></span></p>
<p class="p1"><span lang="EN-GB" style="font-size:12.0pt;font-family:"Aptos",sans-serif">The dialog clustering manual suggests reading
<a href="https://blog.opensips.org/2018/03/23/clustering-ongoing-calls-with-opensips-2-4/">
https://blog.opensips.org/2018/03/23/clustering-ongoing-calls-with-opensips-2-4/</a></span><span lang="EN-GB" style="font-size:12.0pt;font-family:"Aptos",sans-serif;color:windowtext"> which references dlg_sharing_tag which has since been deprecated. I don’t
think I need tags, though potentially that’s where I’m going wrong. I’ve been down a few rabbit holes looking at out of date manuals for some of the modules!
</span><span lang="EN-GB"><o:p></o:p></span></p>
<p class="p1"><span lang="EN-GB" style="font-size:12.0pt;font-family:"Aptos",sans-serif;color:windowtext"> </span><span lang="EN-GB"><o:p></o:p></span></p>
<p class="p1"><span lang="EN-GB" style="font-size:12.0pt;font-family:"Aptos",sans-serif;color:windowtext">The relevant config for node 1 is as follows:</span><span lang="EN-GB"><o:p></o:p></span></p>
<p class="p1"><span lang="EN-GB" style="color:windowtext"> </span><span lang="EN-GB"><o:p></o:p></span></p>
<p class="p1"><span class="s1"><span lang="EN-GB" style="color:red">loadmodule "proto_udp.so"</span></span><span lang="EN-GB"><o:p></o:p></span></p>
<p class="p2"><span class="s2"><span lang="EN-GB" style="color:red">socket =</span></span><span class="s1"><span lang="EN-GB" style="color:red"> udp:10.4.60.11</span></span><span class="apple-converted-space"><span lang="EN-GB" style="color:red"> </span></span><span lang="EN-GB"><o:p></o:p></span></p>
<p class="p2"><span class="apple-converted-space"><span lang="EN-GB" style="color:red"># NLB 1</span></span><span lang="EN-GB"><o:p></o:p></span></p>
<p class="p2"><span class="s2"><span lang="EN-GB" style="color:red">socket =</span></span><span class="s1"><span lang="EN-GB" style="color:red"> udp:10.4.60.11 as 10.4.38.178
</span></span><span lang="EN-GB"><o:p></o:p></span></p>
<p class="p2"><span class="s2"><span lang="EN-GB" style="color:red"># NLB 2</span></span><span lang="EN-GB"><o:p></o:p></span></p>
<p class="p2"><span class="s2"><span lang="EN-GB" style="color:red">socket =</span></span><span class="s1"><span lang="EN-GB" style="color:red"> udp:10.4.60.11 as 10.4.63.19</span></span><span class="apple-converted-space"><span lang="EN-GB" style="color:red"> </span></span><span lang="EN-GB"><o:p></o:p></span></p>
<p class="p2"><span class="apple-converted-space"><span lang="EN-GB" style="color:red"># Tried setting tag public here but didn’t help</span></span><span lang="EN-GB"><o:p></o:p></span></p>
<p class="p2"><span class="apple-converted-space"><span lang="EN-GB" style="color:red"> </span></span><span lang="EN-GB"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:10.5pt;font-family:Menlo;color:red">#### DIALOG module</span><span lang="EN-GB" style="font-size:12.0pt"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:10.5pt;font-family:Menlo;color:red">loadmodule "dialog.so"</span><span lang="EN-GB" style="font-size:12.0pt"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:10.5pt;font-family:Menlo;color:red">modparam("dialog", "dlg_match_mode", 1)</span><span lang="EN-GB" style="font-size:12.0pt"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:10.5pt;font-family:Menlo;color:red">modparam("dialog", "default_timeout", 600) # 6 hours timeout</span><span lang="EN-GB" style="font-size:12.0pt"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:10.5pt;font-family:Menlo;color:red">modparam("dialog", "db_mode", 2)</span><span lang="EN-GB" style="font-size:12.0pt"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:10.5pt;font-family:Menlo;color:red">modparam("dialog", "db_url", "mysql://opensips:opensipsrw@10.4.40.21/opensips")</span><span lang="EN-GB" style="font-size:12.0pt"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:10.5pt;font-family:Menlo;color:red">modparam("dialog", "dialog_replication_cluster", 1)</span><span lang="EN-GB" style="font-size:12.0pt"><o:p></o:p></span></p>
<p class="p2"><span lang="EN-GB" style="color:red"> </span><span lang="EN-GB"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:10.5pt;font-family:Menlo;color:red">### CLUSTERING</span><span lang="EN-GB" style="font-size:12.0pt"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:10.5pt;font-family:Menlo;color:red">socket = bin:10.4.60.12:5566 # bin listener for OpenSIPS clustering</span><span lang="EN-GB" style="font-size:12.0pt"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:10.5pt;font-family:Menlo;color:red">loadmodule "proto_bin.so"</span><span lang="EN-GB" style="font-size:12.0pt"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:10.5pt;font-family:Menlo;color:red"> </span><span lang="EN-GB" style="font-size:12.0pt"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:10.5pt;font-family:Menlo;color:red">loadmodule "clusterer.so"</span><span lang="EN-GB" style="font-size:12.0pt"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:10.5pt;font-family:Menlo;color:red">modparam("clusterer", "db_mode", 1)</span><span lang="EN-GB" style="font-size:12.0pt"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:10.5pt;font-family:Menlo;color:red">modparam("clusterer", "db_url", "mysql://opensips:opensipsrw@10.4.40.21/opensips")</span><span lang="EN-GB" style="font-size:12.0pt"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:10.5pt;font-family:Menlo;color:red">modparam("clusterer", "my_node_id", 2) # node_id for OpenSIPS 1</span><span lang="EN-GB" style="font-size:12.0pt"><o:p></o:p></span></p>
<p class="p2"><span lang="EN-GB" style="color:red"> </span><span lang="EN-GB"><o:p></o:p></span></p>
<p class="p2"><span lang="EN-GB" style="color:red">route {</span><span lang="EN-GB"><o:p></o:p></span></p>
<p class="p2"><span lang="EN-GB" style="color:red">…</span><span lang="EN-GB"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:10.5pt;font-family:Menlo;color:red"> # handle the initial INVITE to create a dialog</span><span lang="EN-GB" style="font-size:12.0pt"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:10.5pt;font-family:Menlo;color:red"> if (is_method("INVITE")) {</span><span lang="EN-GB" style="font-size:12.0pt"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:10.5pt;font-family:Menlo;color:red"> </span><span lang="EN-GB" style="font-size:12.0pt"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:10.5pt;font-family:Menlo;color:red"> …</span><span lang="EN-GB" style="font-size:12.0pt"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:10.5pt;font-family:Menlo;color:red"> </span><span lang="EN-GB" style="font-size:12.0pt"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:10.5pt;font-family:Menlo;color:red"> if ( !create_dialog("B") ) {</span><span lang="EN-GB" style="font-size:12.0pt"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:10.5pt;font-family:Menlo;color:red"> send_reply(500,"Internal Server Error");</span><span lang="EN-GB" style="font-size:12.0pt"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:10.5pt;font-family:Menlo;color:red"> exit;</span><span lang="EN-GB" style="font-size:12.0pt"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:10.5pt;font-family:Menlo;color:red"> }</span><span lang="EN-GB" style="font-size:12.0pt"><o:p></o:p></span></p>
<p class="p2"><span lang="EN-GB" style="color:red">}</span><span lang="EN-GB"><o:p></o:p></span></p>
<p class="p2"><span lang="EN-GB" style="color:black"> </span><span lang="EN-GB"><o:p></o:p></span></p>
<p class="p2"><span lang="EN-GB" style="font-size:12.0pt;font-family:"Aptos",sans-serif;color:black">Any suggestions on how to debug or glaring omissions would be very helpful.</span><span lang="EN-GB"><o:p></o:p></span></p>
<p class="p2"><span lang="EN-GB" style="font-size:12.0pt;font-family:"Aptos",sans-serif;color:black"> </span><span lang="EN-GB"><o:p></o:p></span></p>
<p class="p2"><span lang="EN-GB" style="font-size:12.0pt;font-family:"Aptos",sans-serif;color:black">Best,</span><span lang="EN-GB"><o:p></o:p></span></p>
<p class="p2"><span lang="EN-GB" style="font-size:12.0pt;font-family:"Aptos",sans-serif;color:black"> </span><span lang="EN-GB"><o:p></o:p></span></p>
<p class="p2"><span lang="EN-GB" style="font-size:12.0pt;font-family:"Aptos",sans-serif;color:black">Ben Laing</span><span lang="EN-GB"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-GB" style="font-size:12.0pt"><o:p> </o:p></span></p>
<p style="margin:5.0pt"><span lang="EN-GB" style="font-size:10.0pt;font-family:"Calibri",sans-serif;color:black">Classified - General<o:p></o:p></span></p>
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<p class="MsoNormal" align="right" style="text-align:right"><span style="font-size:7.5pt;font-family:"Calibri",sans-serif;color:white">‑‑‑‑‑<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Arial",sans-serif;color:#1E285F">Ben Laing<o:p></o:p></span></b></p>
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<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Calibri",sans-serif;color:#BEC2B9">He/Him<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Arial",sans-serif;color:#1E285F">Senior Software Developer<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#BEC2B9">Email: <u>Ben.Laing@dals.co.uk</u><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#BEC2B9"><a href="http://www.dals.co.uk/" target="_blank" title="www.dals.co.uk"><span style="color:#BEC2B9;text-decoration:none">Website: </span><span style="color:#BEC2B9">www.dals.co.uk</span></a><o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#1E285F">Dals, Statham House, Talbot Rd, Stretford, Manchester, M32 0FP<o:p></o:p></span></b></p>
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<p class="MsoNormal"><span lang="EN-GB" style="font-size:1.0pt;font-family:"remialcxesans",serif"> </span><span lang="EN-GB" style="font-size:1.0pt;font-family:"template-W0koJ2B3Ee-9_WBFvcEnUA",serif"> </span><span lang="EN-GB" style="font-size:1.0pt;font-family:"zone-1",serif"> </span><span lang="EN-GB" style="font-size:1.0pt;font-family:"zones-AQ",serif"> </span><span lang="EN-GB" style="font-size:1.0pt"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-GB" style="font-size:12.0pt"><o:p> </o:p></span></p>
<p style="margin:5.0pt"><span lang="EN-GB" style="font-size:10.0pt;font-family:"Calibri",sans-serif;color:black">Classified - General<o:p></o:p></span></p>
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