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Re: [Bug 1999711] [NEW] Snmptrapd cannot reconnect to MySQL server after hitting MySQL wait_timeout

 

Hi Mauricio,

Sorry for not asking about the correct flow.
I added the LP bug URL in Salesforce.
Thanks for your help.

Best regards,
Chengen Du

On Thu, Jan 12, 2023 at 8:57 PM Mauricio Oliveira
<mauricio.oliveira@xxxxxxxxxxxxx> wrote:
>
> Hi Chengen!
> How are you?
>
> I just found out this bug that needs SRU sponsorship for your ticket SF#341744.
>
> Please excuse our lack of documentation; I'll be working on that,
> but the reason our sponsor team (or at least me) was because
> the 'SE SRU Sponsors' team was not _subscribed_ to the bug.
>
> I see you added a `sts-sponsor` tag, but unfortunately it doesn't
> generate any notification -- you can actually not use it anymore. :)
>
> I went ahead and subscribed us (in the future, you can do this
> by clicking "Subscribe someone else" and "SE SRU Sponsors"
> (sts-sponsors).
>
> And another important very step is to add the LP Bug URL in
> Salesforce, in the 'Public Bug URL' field, e.g.,
> https://bugs.launchpad.net/bugs/1999711
>
> This allows our scripts to check for the SRUs in SF cases
> and keep them moving forward until they are released!
>
> Thanks for your upstream patch and bug report!
> We'll take a look at it!
>
> cheers,
> Mauricio
>
>
>
>
> ---------- Forwarded message ---------
> From: Launchpad Bug Tracker <1999711@xxxxxxxxxxxxxxxxxx>
> Date: Thu, Jan 12, 2023 at 9:37 AM
> Subject: [Sts-sponsors] [Bug 1999711] [NEW] Snmptrapd cannot reconnect
> to MySQL server after hitting MySQL wait_timeout
> To: <sts-sponsors@xxxxxxxxxxxxxxxxxxx>
>
>
> You have been subscribed to a public bug by Mauricio Faria de Oliveira (mfo):
>
> [Impact]
> wait_timeout is the number of seconds the MySQL server waits for
> activity before closing the connection.
> MySQL v8.0.24 writes the reason for the connection before closing it,
> and the client receives a more informative error message
> (ER_CLIENT_INTERACTION_TIMEOUT).
> Snmptrapd does not handle this error code, so the connection will not
> reconnect to the MySQL server afterward.
>
> [Test Plan]
> 1. Setup MySQL server and modify wait_timeout to 15 in
> /etc/MySQL/mysql.conf.d/mysqld.cnf
> 2. Setup snmptrapd and execute snmptrap command
> 3. Sleep 15 seconds and re-execute snmptrap command, then the
> connection will fail until the snmptrapd service restarted
>
> [Where problems could occur]
> Once the error happens, snmptrapd will keep the sql commands and
> resend it after reconnecting to the MySQL server.
> The regression can be considered as low.
>
> [Other Info]
>
> ** Affects: net-snmp (Ubuntu)
>      Importance: Undecided
>      Assignee: ChengEn, Du (chengendu)
>          Status: In Progress
>
> ** Affects: net-snmp (Ubuntu Bionic)
>      Importance: Undecided
>      Assignee: ChengEn, Du (chengendu)
>          Status: In Progress
>
> ** Affects: net-snmp (Ubuntu Focal)
>      Importance: Undecided
>      Assignee: ChengEn, Du (chengendu)
>          Status: In Progress
>
> ** Affects: net-snmp (Ubuntu Jammy)
>      Importance: Undecided
>      Assignee: ChengEn, Du (chengendu)
>          Status: In Progress
>
> ** Affects: net-snmp (Ubuntu Kinetic)
>      Importance: Undecided
>      Assignee: ChengEn, Du (chengendu)
>          Status: In Progress
>
> ** Affects: net-snmp (Ubuntu Lunar)
>      Importance: Undecided
>      Assignee: ChengEn, Du (chengendu)
>          Status: In Progress
>
>
> ** Tags: bionic focal jammy kinetic lunar patch sts sts-sponsor
> --
> Snmptrapd cannot reconnect to MySQL server after hitting MySQL wait_timeout
> https://bugs.launchpad.net/bugs/1999711
> You received this bug notification because you are a member of SE SRU
> ("STS") Sponsors, which is subscribed to the bug report.
>
> --
> Mailing list: https://launchpad.net/~sts-sponsors
> Post to     : sts-sponsors@xxxxxxxxxxxxxxxxxxx
> Unsubscribe : https://launchpad.net/~sts-sponsors
> More help   : https://help.launchpad.net/ListHelp
>
>
> --
> Mauricio Faria de Oliveira


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