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From: Alvaro Herrera <[email protected]>
To: Ronan Dunklau <[email protected]>
Cc: [email protected]
Subject: Re: Proposal: More structured logging
Date: Thu, 19 Aug 2021 09:04:30 -0400
Message-ID: <[email protected]> (raw)
In-Reply-To: <3207907.AWbSqkKDnR@aivenronan>

On 2021-Aug-13, Ronan Dunklau wrote:

> ereport(NOTICE,
>  (errmsg("My log message")),
>  (errtag("EMITTER", "MYEXTENSION")),
>  (errtag("MSG-ID", "%d", error_message_id))
> );

Interesting idea.   I agree this would be useful.

> Please find attached a very small POC patch to better demonstrate what I 
> propose.  

Seems like a good start.  I think a further step towards a committable
patch would include a test module that uses the new tagging
functionality.

> On a related note, the only structured logger we have in-core is the CSV 
> logger. Many users nowadays end up feeding the logs to journald either by 
> capturing the stderr output with systemd, or by having syslog implemented by 
> journald itself. Would there be any interest in having native journald support 
> as a logging_destination ?

I don't know anything about journald, but I agree that we sorely need
some better way to emit structured log entries.

-- 
Álvaro Herrera              Valdivia, Chile  —  https://www.EnterpriseDB.com/
"The problem with the facetime model is not just that it's demoralizing, but
that the people pretending to work interrupt the ones actually working."
                                                           (Paul Graham)

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