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<p>Hello,</p>
<p>you have to look at your routing script and see if it is missing
some return or exit to stop processing when the reply is sent out.</p>
<p>Cheers,<br>
Daniel<br>
</p>
<div class="moz-cite-prefix">On 26.01.22 18:22, Lewis Hutchinson
wrote:<br>
</div>
<blockquote type="cite"
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<p class="MsoNormal">Hi Daniel<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<p>Many thanks, this is in the early stages and to undergo
extensive testing which I suspect will see a lot efforts to
improve and refine. This was previously written in native
kamailio but for other reasons moved to python. Any feedback
always welcome<br>
<br>
“looks like after sending the response execution continues
somewhere else hitting t_check_trans() which detect the
transaction exists and re-sends the last last reply (as it
is supposed to behave).” can you think why this only occur
on a re SUBSCRIBE<span
style="font-size:10.5pt;font-family:"Segoe
UI",sans-serif;color:#242424;background:white"><o:p></o:p></span></p>
<p><span style="font-size:10.5pt;font-family:"Segoe
UI",sans-serif;color:#242424;background:white">There
is no intelligence in the reply needed just an accurate
response from the API transformed into a reply 200, 500
etc etc<o:p></o:p></span></p>
<p><br>
<br>
<b><span style="font-size:12.0pt;color:black">Lewis </span></b><o:p></o:p></p>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
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1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span
style="mso-fareast-language:EN-GB" lang="EN-US">From:</span></b><span
style="mso-fareast-language:EN-GB" lang="EN-US">
Daniel-Constantin Mierla <a class="moz-txt-link-rfc2396E" href="mailto:miconda@gmail.com"><miconda@gmail.com></a>
<br>
<b>Sent:</b> 26 January 2022 16:37<br>
<b>To:</b> Kamailio (SER) - Users Mailing List
<a class="moz-txt-link-rfc2396E" href="mailto:sr-users@lists.kamailio.org"><sr-users@lists.kamailio.org></a>; Lewis Hutchinson
<a class="moz-txt-link-rfc2396E" href="mailto:lewis.hutchinson@missionlabs.co.uk"><lewis.hutchinson@missionlabs.co.uk></a><br>
<b>Subject:</b> Re: [SR-Users] 200 OK re transmission
only on re-SUBSCRIBE<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p>Hello,<o:p></o:p></p>
<p>looks like after sending the response execution continues
somewhere else hitting t_check_trans() which detect the
transaction exists and re-sends the last last reply (as it is
supposed to behave).<o:p></o:p></p>
<p>Be also careful with async processing in python, I am not
familiar with it at all, just be aware that kamailio has a
multi-process design and uses per-process global variables. if
you do multi-threading async processing in python, be sure you
ensure consistency of globals and avoid races to read+change
them.<o:p></o:p></p>
<p>Cheers,<br>
Daniel<o:p></o:p></p>
<div>
<p class="MsoNormal">On 26.01.22 16:53, Lewis Hutchinson
wrote:<o:p></o:p></p>
</div>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<p class="MsoNormal">First of all I should start by saying
this is my first post so go easy on me!! : ) and thank for
everyone’s efforts to share knowledge it has been invaluable
for my kamailio learning.<br>
<br>
<u>Build Details</u><br>
<br>
Version: kamailio 5.5.3 (x86_64/linux)<br>
Kamailio kemi python <br>
<br>
<u>Scenario</u><br>
<br>
Relevant config<br>
<br>
def ksr_route_api_query(self, msg):<o:p></o:p></p>
<p class="MsoNormal"> KSR.log("info", "SUBSCRIBE API
Query Starts")<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"> # Create new Transaction<o:p></o:p></p>
<p class="MsoNormal"> KSR.tm.t_newtran()<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"> async def main():<o:p></o:p></p>
<p class="MsoNormal"> url = '<a
href="https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fapi.hidingtheurl.com%2Fsubscribe&data=04%7C01%7Clewis.hutchinson%40missionlabs.co.uk%7Cdd21c3bd426b483f046908d9e0ea0e56%7C97c26f550a7a4661bd8f7b43b50d3f2b%7C0%7C0%7C637788119843865974%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=RUXou2G%2F5kC2rT2VKu%2BJ3YQKvimpUxe4HsyMjfqXAUk%3D&reserved=0"
moz-do-not-send="true">https://api.hidingtheurl.com/subscribe</a>'<o:p></o:p></p>
<p class="MsoNormal"> payload = {<o:p></o:p></p>
<p class="MsoNormal"> "ruri":
KSR.pv.get("$ru"),<o:p></o:p></p>
<p class="MsoNormal"> "from":
KSR.pv.get("$fu"),<o:p></o:p></p>
<p class="MsoNormal"> "from_tag":
KSR.pv.gete("$ft"),<o:p></o:p></p>
<p class="MsoNormal"> "to": KSR.pv.get("$tu"),<o:p></o:p></p>
<p class="MsoNormal"> "callid":
KSR.pv.get("$ci"),<o:p></o:p></p>
<p class="MsoNormal"> "cseq":
KSR.pv.get("$cs"),<o:p></o:p></p>
<p class="MsoNormal"> "contact":
KSR.pv.gete("$ct"),<o:p></o:p></p>
<p class="MsoNormal"> "supported":
KSR.pv.get("$hdr(Supported)"),<o:p></o:p></p>
<p class="MsoNormal"> "event":
KSR.pv.get("$hdr(Event)"),<o:p></o:p></p>
<p class="MsoNormal"> "expires":
KSR.pv.get("$hdr(Expires)"),<o:p></o:p></p>
<p class="MsoNormal"> "diversion":
KSR.pv.get("$di"),<o:p></o:p></p>
<p class="MsoNormal"> "body": KSR.pv.get("$rb")<o:p></o:p></p>
<p class="MsoNormal"> }<o:p></o:p></p>
<p class="MsoNormal"> async with
aiohttp.ClientSession() as session:<o:p></o:p></p>
<p class="MsoNormal"> async with
session.post(url, json=payload) as response:<o:p></o:p></p>
<p class="MsoNormal"> if response.status ==
0:<o:p></o:p></p>
<p class="MsoNormal">
KSR.xlog.xinfo(f"SUB Manager Timeout: {response.status}")<o:p></o:p></p>
<p class="MsoNormal">
KSR.tm.t_reply(408, "SUB Manager Timeout")<o:p></o:p></p>
<p class="MsoNormal"> elif response.status
>= 500:<o:p></o:p></p>
<p class="MsoNormal">
KSR.xlog.xinfo(f"SUB Manager Down: {response.status}")<o:p></o:p></p>
<p class="MsoNormal">
KSR.tm.t_reply(500, "SUB Manager Down")<o:p></o:p></p>
<p class="MsoNormal"> elif response.status
>= 400:<o:p></o:p></p>
<p class="MsoNormal">
KSR.xlog.xinfo(f"SUB Manager Error: {response.status}")<o:p></o:p></p>
<p class="MsoNormal">
KSR.tm.t_reply(400, "SUB Manager Error")<o:p></o:p></p>
<p class="MsoNormal"> else:<o:p></o:p></p>
<p class="MsoNormal"> if
response.status == 200:<o:p></o:p></p>
<p class="MsoNormal">
KSR.xlog.xinfo(f"SUB Manager Success: {response.status}")<o:p></o:p></p>
<p class="MsoNormal">
KSR.tm.t_reply(200, "OK")<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"> KSR.log("info", "SUBSCRIBE API
Query Ends")<o:p></o:p></p>
<p class="MsoNormal"> asyncio.run(main())<o:p></o:p></p>
<p class="MsoNormal"> # API Query Ends<br>
<br>
<u>Scenario</u><br>
<br>
<br>
<o:p></o:p></p>
<p class="MsoNormal">Initial SUBSCRIBE >>> hits
Kamailio >>> send payload in JSON to API get
receive 200OK response from API and send a 200OK on to
Device
<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">SUBSCRIBE --------><o:p></o:p></p>
<p class="MsoNormal"><------------ 200 OK <o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">After Subscription Expiry<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">re-SUBSCRIBE >>> hits Kamailio
>>> send payload in JSON to API get 200OK response
from API and send a 200OK on to Device but also another
200OK a fraction of a second later...<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">SUBSCRIBE --------><o:p></o:p></p>
<p class="MsoNormal"><------------ 200 OK <o:p></o:p></p>
<p class="MsoNormal"><<<--------- 200 OK <o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"><br>
This happens for all following re-SUBSCRIBE's<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">The 200 OK are identical, and it is a re
transmission, but I can’t work out why..<br>
<br>
Relevant DEBUG is below<br>
<br>
Jan 26 12:31:17 ip-172-20-46-39 kamailio[11234]: INFO:
<script>: SUB Manager Success: 200<o:p></o:p></p>
<p class="MsoNormal">Jan 26 12:31:17 ip-172-20-46-39
kamailio[11234]: DEBUG: app_python3 [apy_kemi.c:232]:
sr_apy_kemi_exec_func_ex(): execution of method: t_reply<o:p></o:p></p>
<p class="MsoNormal">Jan 26 12:31:17 ip-172-20-46-39
kamailio[11234]: DEBUG: app_python3 [apy_kemi.c:287]:
sr_apy_kemi_exec_func_ex(): params[2] for: t_reply are
int-str: [200] [OK]<o:p></o:p></p>
<p class="MsoNormal">Jan 26 12:31:17 ip-172-20-46-39
kamailio[11234]: DEBUG: tm [t_lookup.c:1034]: t_check_msg():
msg (0x7eff0cd4e828) id=2/11234 global id=2/11234 T
start=0x7eff0918d7d8<o:p></o:p></p>
<p class="MsoNormal">Jan 26 12:31:17 ip-172-20-46-39
kamailio[11234]: DEBUG: tm [t_lookup.c:1108]: t_check_msg():
T (0x7eff0918d7d8) already found for msg (0x7eff0cd4e828)!<o:p></o:p></p>
<p class="MsoNormal">Jan 26 12:31:17 ip-172-20-46-39
kamailio[11234]: DEBUG: <core>
[core/msg_translator.c:162]: check_via_address():
(80.111.111.111, 80.111.111.111, 0)<o:p></o:p></p>
<p class="MsoNormal">Jan 26 12:31:17 ip-172-20-46-39
kamailio[11234]: DEBUG: tm [t_reply.c:1763]:
cleanup_uac_timers(): RETR/FR timers reset<o:p></o:p></p>
<p class="MsoNormal">Jan 26 12:31:17 ip-172-20-46-39
kamailio[11234]: DEBUG: tm [t_reply.c:637]: _reply_light():
reply sent out - buf=0x7eff0cd50938: SIP/2.0 200
OK#015#012Via:... shmem=0x7eff09190ca8: SIP/2.0 200
OK#015#012Via:<o:p></o:p></p>
<p class="MsoNormal">Jan 26 12:31:17 ip-172-20-46-39
kamailio[11234]: DEBUG: tm [t_reply.c:648]: _reply_light():
finished<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">Jan 26 12:31:17 ip-172-20-46-39
kamailio[11234]: DEBUG: app_python3 [apy_kemi.c:232]:
sr_apy_kemi_exec_func_ex(): execution of method:
t_precheck_trans<o:p></o:p></p>
<p class="MsoNormal">Jan 26 12:31:17 ip-172-20-46-39
kamailio[11234]: DEBUG: app_python3 [apy_kemi.c:232]:
sr_apy_kemi_exec_func_ex(): execution of method:
t_check_trans<o:p></o:p></p>
<p class="MsoNormal">Jan 26 12:31:17 ip-172-20-46-39
kamailio[11234]: DEBUG: tm [t_lookup.c:1034]: t_check_msg():
msg (0x7eff0cd4e828) id=2/11234 global id=2/11234 T
start=0x7eff0918d7d8<o:p></o:p></p>
<p class="MsoNormal">Jan 26 12:31:17 ip-172-20-46-39
kamailio[11234]: DEBUG: tm [t_lookup.c:1108]: t_check_msg():
T (0x7eff0918d7d8) already found for msg (0x7eff0cd4e828)!<o:p></o:p></p>
<p class="MsoNormal">Jan 26 12:31:17 ip-172-20-46-39
kamailio[11234]: DEBUG: tm [t_reply.c:1703]:
t_retransmit_reply(): reply retransmitted.
buf=0x7eff0cb18220: SIP/2.0 2..., shmem=0x7eff09190ca8:
SIP/2.0 2<o:p></o:p></p>
<p class="MsoNormal">Jan 26 12:31:17 ip-172-20-46-39
kamailio[11234]: DEBUG: app_python3 [apy_kemi.c:112]:
sr_kemi_config_engine_python(): execution of route type 1
with no name returned 1<o:p></o:p></p>
<p class="MsoNormal">Jan 26 12:31:17 ip-172-20-46-39
kamailio[11234]: DEBUG: <core> [core/receive.c:514]:
receive_msg(): request-route executed in: 38258 usec<br>
<br>
<br>
Everything works well as is but I want to clean up this
issue or at least understand what is causing it.<br>
<br>
<br>
<br>
<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"><b><span
style="font-size:12.0pt;color:black;mso-fareast-language:EN-GB">Lewis</span></b><o:p></o:p></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-GB"><br>
<br>
<o:p></o:p></span></p>
<pre>__________________________________________________________<o:p></o:p></pre>
<pre>Kamailio - Users Mailing List - Non Commercial Discussions<o:p></o:p></pre>
<pre> * <a href="mailto:sr-users@lists.kamailio.org" moz-do-not-send="true" class="moz-txt-link-freetext">sr-users@lists.kamailio.org</a><o:p></o:p></pre>
<pre>Important: keep the mailing list in the recipients, do not reply only to the sender!<o:p></o:p></pre>
<pre>Edit mailing list options or unsubscribe:<o:p></o:p></pre>
<pre> * <a href="https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.kamailio.org%2Fcgi-bin%2Fmailman%2Flistinfo%2Fsr-users&data=04%7C01%7Clewis.hutchinson%40missionlabs.co.uk%7Cdd21c3bd426b483f046908d9e0ea0e56%7C97c26f550a7a4661bd8f7b43b50d3f2b%7C0%7C0%7C637788119843875940%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=ktFWCyiPBcm1lBD%2FufKC29cRDas8w40bz%2B%2FeqlKU4ME%3D&reserved=0" moz-do-not-send="true">https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users</a><o:p></o:p></pre>
</blockquote>
<pre>-- <o:p></o:p></pre>
<pre>Daniel-Constantin Mierla -- <a href="https://eur03.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.asipto.com%2F&data=04%7C01%7Clewis.hutchinson%40missionlabs.co.uk%7Cdd21c3bd426b483f046908d9e0ea0e56%7C97c26f550a7a4661bd8f7b43b50d3f2b%7C0%7C0%7C637788119843885892%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=sWTHp6KL5rN4GUE0AE8bjcPZ%2FY15ogA3kXohl8pFPlU%3D&reserved=0" moz-do-not-send="true">www.asipto.com</a><o:p></o:p></pre>
<pre><a href="https://eur03.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.twitter.com%2Fmiconda&data=04%7C01%7Clewis.hutchinson%40missionlabs.co.uk%7Cdd21c3bd426b483f046908d9e0ea0e56%7C97c26f550a7a4661bd8f7b43b50d3f2b%7C0%7C0%7C637788119843885892%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=9aZF1fGLjKeQHQjJh6EtQoM%2FguP78pdwEmec7wRl%2FeY%3D&reserved=0" moz-do-not-send="true">www.twitter.com/miconda</a> -- <a href="https://eur03.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.linkedin.com%2Fin%2Fmiconda&data=04%7C01%7Clewis.hutchinson%40missionlabs.co.uk%7Cdd21c3bd426b483f046908d9e0ea0e56%7C97c26f550a7a4661bd8f7b43b50d3f2b%7C0%7C0%7C637788119843895840%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=M6Eisb%2FqYQ%2FnBEK8zF2vbhCycOPtGT%2B6rV3coVO6Ebo%3D&reserved=0" moz-do-not-send="true">www.linkedin.com/in/miconda</a><o:p></o:p></pre>
<pre>Kamailio Advanced Training - Online<o:p></o:p></pre>
<pre> Feb 21-24, 2022 (America Timezone)<o:p></o:p></pre>
<pre> * <a href="https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.asipto.com%2Fsw%2Fkamailio-advanced-training-online%2F&data=04%7C01%7Clewis.hutchinson%40missionlabs.co.uk%7Cdd21c3bd426b483f046908d9e0ea0e56%7C97c26f550a7a4661bd8f7b43b50d3f2b%7C0%7C0%7C637788119843905804%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=O2YyPhALtsIevNfiWMTXdK2GMaeZ91GU%2B1ebo%2BC%2Fx9E%3D&reserved=0" moz-do-not-send="true">https://www.asipto.com/sw/kamailio-advanced-training-online/</a><o:p></o:p></pre>
</div>
<br>
<fieldset class="moz-mime-attachment-header"></fieldset>
<pre class="moz-quote-pre" wrap="">__________________________________________________________
Kamailio - Users Mailing List - Non Commercial Discussions
* <a class="moz-txt-link-abbreviated" href="mailto:sr-users@lists.kamailio.org">sr-users@lists.kamailio.org</a>
Important: keep the mailing list in the recipients, do not reply only to the sender!
Edit mailing list options or unsubscribe:
* <a class="moz-txt-link-freetext" href="https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users">https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users</a>
</pre>
</blockquote>
<pre class="moz-signature" cols="72">--
Daniel-Constantin Mierla -- <a class="moz-txt-link-abbreviated" href="http://www.asipto.com">www.asipto.com</a>
<a class="moz-txt-link-abbreviated" href="http://www.twitter.com/miconda">www.twitter.com/miconda</a> -- <a class="moz-txt-link-abbreviated" href="http://www.linkedin.com/in/miconda">www.linkedin.com/in/miconda</a>
Kamailio Advanced Training - Online
Feb 21-24, 2022 (America Timezone)
* <a class="moz-txt-link-freetext" href="https://www.asipto.com/sw/kamailio-advanced-training-online/">https://www.asipto.com/sw/kamailio-advanced-training-online/</a></pre>
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