| Re: [mosquitto-dev] PUBREL |
Hi Aaron,
>From what you've said it seems like your client is keeping a record of
inflight messages and trying to redo them. Mosquitto 1.4.9 and up
copes with this by giving the warning that you've seen and then
sending a PUBCOMP to satisfy the client.
If that's not working out, then maybe there's something up with the client.
Cheers,
Roger
> ______________________________
On 13 May 2017 at 20:47, Aaron Chappelle <achappelle@xxxxxxxxx> wrote:
> I'm getting a lot of broker PUBREL warnings that won't quit.
>
> Warning: Received PUBREL from [client-name] for an unknown packet identifier
> 6668.
>
> It seems to be happening when my embedded system is coming up... e.g. broker
> is launching and clients are coming up.... messages start flowing but I very
> quickly get this warning.
>
> I have clients using clean sessions, and messages being sent at QOS level 2.
> Persistence is in memory on client and broker.
>
> I'm just starting to look into this and will turn logging up to understand
> it better, but wanted to ask if anyone could think of some reasons this
> would occur.
>
> I was thinking one scenario could be said client disconnected before a
> PUBREL was sent... when it reconnected with a clean session it tried to send
> its PUBREL but now the broker didn't have record of said packet id. I still
> need to verify there was a disconnect though, and then why.
>
> Any thoughts?
>
>
>
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