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<div class="moz-cite-prefix">On 01.07.2020 09:25, William Jin wrote:<br>
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cite="mid:HK0PR06MB28509327950902727CEC70B39B6C0@HK0PR06MB2850.apcprd06.prod.outlook.com">
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opensipsctl fifo clusterer_list_cap<br>
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<span>Cluster:: 1<br>
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Capability:: usrloc-contact-repl State=not synced</span><br>
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<span></span><br>
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And we found the below log</div>
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<a class="moz-txt-link-freetext" href="INFO:usrloc:receive_binary_packets">INFO:usrloc:receive_binary_packets</a>: discarding , ver 1: need ver
2<br>
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<br>
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Is there anything I missed? where should I change the version
to 2?</div>
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<p><tt>Hey, William!</tt></p>
<p><tt>This change in the sync protocol version was introduced
roughly 1 year ago in 2.4.7, because we had to add more
information to the sync packet in order to fix some usrloc bug.
Thus, the new and previous versions became incompatible, so we
signified this via a new version, so a 2.4.7 instance doesn't
crash when receiving data from a 2.4.6 one, and vice-versa.</tt></p>
<p><tt>TL;DR: just upgrade both nodes to 2.4.8 and start from an
empty list of bindings. Things will get back to normal within 1
hour. If this is not tolerable on your platform, try to dump
the UDP contacts with MI "ul_dump" [1] before restarting the
active node, then re-register them manually with the "ul_add"
[2] command that and some Python scripting logic, for example.</tt></p>
<p><tt>Best regards,</tt></p>
<p><tt>[1]: </tt><tt><a
href="https://opensips.org/docs/modules/2.4.x/usrloc.html#mi_ul_dump">https://opensips.org/docs/modules/2.4.x/usrloc.html#mi_ul_dump</a><br>
[2]: </tt><tt><a
href="https://opensips.org/docs/modules/2.4.x/usrloc.html#mi_ul_add">https://opensips.org/docs/modules/2.4.x/usrloc.html#mi_ul_add</a></tt></p>
<pre class="moz-signature" cols="72">--
Liviu Chircu
<a class="moz-txt-link-abbreviated" href="http://www.twitter.com/liviuchircu">www.twitter.com/liviuchircu</a> | <a class="moz-txt-link-abbreviated" href="http://www.opensips-solutions.com">www.opensips-solutions.com</a></pre>
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