We’ve been using particle.functions triggered by input from the cloud console to configure field devices for a long time. Typically these devices are running 0.8.0. This process has been very reliable until today. This afternoon I needed to change come configurations and attempted to run the funct…

@all, Thought this would help highlight the issue by using a larger sample size. All of the devices in this list came online at 10:00 and reported successfully. As you can see the “online” message - and the ability to respond to an API call - took from 14 seconds to 21 minutes to report in. [34%…

@JamesHagerman Thank you for the candour about the occurrence of these spark/status events. I have 2 Xenons ethernet connected in a Particle ethernet featherwing. They both have mesh endnodes connected. I have been seeing repeated spark/status offline followed by spark/status online exactly 30 seco…

@chipmc , At this time, I do not believe this spark/status delay bug has any impact on Particle’s OTA update process. That said, sleepy behavior does introduce a number of additional variables that can impact their ability to receive OTA updates. Some of these variables we can (and do) control for.…

@ian.c , That second event log does appear to be showing this spark/status event delay issue. Generally, devices are marked offline if they fail to send data to the cloud within some amount of time. This time depends on the KeepAlive value set by the Device OS. If the user application does not sen…

Could I clarify what you might be suggesting is changed in the Xenon ethernet connected mesh gateway. Are you saying the gateway should be Cloud Publishing at least every 30 seconds or something else? The endnodes are only local mesh connected to the gateway which is then deciding what to publish to…

Assuming the user application makes no calls to Particle.publish(), all connected Particle devices will send Ping messages to the cloud at regular intervals. This is documented behavior . The timing of those keep alive messages depends on the device platform. For mesh devices, the device’s role in t…

[image] JamesHagerman: At this time, I do not believe this spark/status delay bug has any impact on Particle’s OTA update process. I agree. Despite this issue, the OTA process did update my devices. After this fix is out the door, it would be good to develop some documentation on how to bes…

My mesh devices are only Mesh connected - so there is no Ping coming from them via the gateway to the Cloud. In my case only the gateway will be pinging. Could there be an application reason why the ethernet based gateway is occasionally not sending the ping to the cloud and hence the connection dr…

One of the big underlying issues IMHO is that UDP is used for DeviceOS/Mesh messaging and while it has much less overhead than TCP - it is entirely unmanaged - so there is ZERO guarantees of any data being received by the destination, compared to TCP. So it was designed to be used in high reliabilit…

In my case - between the Cloud and ethernet connected device - if I am using Particle publish then this is using TCP? I thought it was only the Mesh network that used UDP. I am OK with dropped packets on the Mesh network as I have implemented an ACK mechanism from node to gateway for critical data.

Delay in 'online' status and failed particle.function

Cloud

damonmaria January 22, 2020, 3:12am 33

Hi @JamesHagerman. We've currently got a battery-sucking work around in place for this issue. Has the fix been put into place? I notice that the spark/status is still coming in a few minutes after the device re-connects.

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Delay in 'online' status and failed particle.function

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