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<div dir="ltr">Thanks Darren, appreciate your response! </div>
<div dir="ltr">I'll see if I can get some data around it again, but I was seeing some irregular heartbeats and was wondering why that could be.</div>
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<div dir="ltr">Thanks,</div>
<div dir="ltr">– Diogo</div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Darren Ankney <darren.ankney@gmail.com><br>
<b>Sent:</b> Wednesday, June 4, 2025 8:27:52 AM<br>
<b>To:</b> Kea user's list <kea-users@lists.isc.org><br>
<b>Cc:</b> Diogo André de Assumpção <daa@meta.com><br>
<b>Subject:</b> Re: [Kea-users] heartbeat-delay in LB mode and lease updates</font>
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<br>
Hi Diogo,<br>
<br>
I agree that the ARM sort of reads that way, but I don't see anything<br>
here: <a href="https://urldefense.com/v3/__https://gitlab.isc.org/isc-projects/kea/-/blob/master/src/hooks/dhcp/high_availability/ha_service.cc?ref_type=heads*L1779-1949__;Iw!!Bt8RZUm9aw!9RUXEdaIaF006_SaNAFLyoEYdUCv_JoLq18ftWnNWmRBf8I5cRYBCNjZGjg0MnSuQHdUU3Wffmd8YD_G$">
https://urldefense.com/v3/__https://gitlab.isc.org/isc-projects/kea/-/blob/master/src/hooks/dhcp/high_availability/ha_service.cc?ref_type=heads*L1779-1949__;Iw!!Bt8RZUm9aw!9RUXEdaIaF006_SaNAFLyoEYdUCv_JoLq18ftWnNWmRBf8I5cRYBCNjZGjg0MnSuQHdUU3Wffmd8YD_G$</a>
<br>
that would check if some other communication happened during the<br>
scheduling of the heartbeat. I am not, however, a C++ expert so I<br>
could be wrong.<br>
<br>
Thank you,<br>
Darren Ankney<br>
<br>
On Fri, May 23, 2025 at 4:13 AM Diogo André de Assumpção via Kea-users<br>
<kea-users@lists.isc.org> wrote:<br>
><br>
> Hi!<br>
><br>
><br>
><br>
> Looking at the following bit from the Kea ARM<br>
><br>
><br>
><br>
> heartbeat-delay - specifies a duration in milliseconds between sending the last heartbeat (or other command sent to the partner) and the next heartbeat. Heartbeats are sent periodically to gather the status of the partner and to verify whether the partner
is still operating. The default value of this parameter is 10000 ms.<br>
><br>
> <a href="https://urldefense.com/v3/__https://kea.readthedocs.io/en/kea-2.6.2/arm/hooks.html*load-balancing-configuration:*:text=heartbeat*2Ddelay*20*2D*20specifies,is*2010000*20ms__;I34lJSUlJSU!!Bt8RZUm9aw!9RUXEdaIaF006_SaNAFLyoEYdUCv_JoLq18ftWnNWmRBf8I5cRYBCNjZGjg0MnSuQHdUU3WffgGQpPuo$">
https://urldefense.com/v3/__https://kea.readthedocs.io/en/kea-2.6.2/arm/hooks.html*load-balancing-configuration:*:text=heartbeat*2Ddelay*20*2D*20specifies,is*2010000*20ms__;I34lJSUlJSU!!Bt8RZUm9aw!9RUXEdaIaF006_SaNAFLyoEYdUCv_JoLq18ftWnNWmRBf8I5cRYBCNjZGjg0MnSuQHdUU3WffgGQpPuo$</a>
.<br>
><br>
><br>
><br>
> Would this mean that the servers may not exchange a heartbeat if other commands (like lease updates) are being exchanged within the set heartbeat-delay?<br>
><br>
><br>
><br>
> Thanks,<br>
><br>
> Diogo<br>
><br>
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