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Subject: Re: [mqtt-comment] Re: Which MQTT control packets can use if Request Problem Information is 0 ?
- From: Richard J Coppen <COPPEN@uk.ibm.com>
- To: Takatoshi Kondo <redboltz@gmail.com>
- Date: Fri, 15 May 2020 12:05:46 +0100
Hi Takatoshi,
I reviewed today
with Andrew Banks and unfortunately I don't have a quick answer as this
needs review with the wider Technical Committee. To help with that, I have
raised two issues in Jira which you can track via the following links.
https://issues.oasis-open.org/browse/MQTT-565
https://issues.oasis-open.org/browse/MQTT-564
Thank you for
making the effort to raise these, it's much appreciated.
Best regards
Richard
|
|
Richard
Coppen CEng FBCS
|
| IBM
United Kingdom
|
|
Senior
Software Engineer
| Hursley
Park
|
IBM
MQ
| Winchester
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| SO21
2JN
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Phone:
| +44
(0)1962 817164
| England
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e-mail:
| coppen@uk.ibm.com
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From:
Takatoshi
Kondo <redboltz@gmail.com>
To:
mqtt-comment@lists.oasis-open.org,
Richard J Coppen <COPPEN@uk.ibm.com>
Date:
14/05/2020
02:42
Subject:
[EXTERNAL]
[mqtt-comment] Re: Which MQTT control packets can use if Request Problem
Information is 0 ?
Sent
by: <mqtt-comment@lists.oasis-open.org>
Hi Richard,
I'm not sure that you are right person to send follow up mail.
I reported the following issue but not responding, so far.
Could you check this?
Thanks,
Takatoshi
On Tue, Apr 14, 2020 at 11:36 AM Takatoshi Kondo <redboltz@gmail.com>
wrote:
>
> Hi,
>
> I have a comment about the following part of MQTT Version 5.0 document:
>
> https://docs.oasis-open.org/mqtt/mqtt/v5.0/os/mqtt-v5.0-os.html#_Toc3901053
>
> > If the value of Request Problem Information is 0, the Server
MAY return a Reason String or User Properties on a CONNACK or DISCONNECT
packet, but MUST NOT send a Reason String or User Properties on any packet
other than PUBLISH, CONNACK, or DISCONNECT [MQTT-3.1.2-29]. If the value
is 0 and the Client receives a Reason String or User Properties in a packet
other than PUBLISH, CONNACK, or DISCONNECT, it uses a DISCONNECT packet
with Reason Code 0x82 (Protocol Error) as described in section 4.13 Handling
errors.
>
>
> At first, the spec refer to CONNACK and DISCONNECT. But from the
> middle, PUBLISH is mixed.
>
> Which MQTT control packets can use Reason String and/or User
> Properties if Request Problem Information is 0 ?
>
> Thanks,
> Takatoshi
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