Re: [HACKERS] keeping track of connections

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От Bruce Momjian
Тема Re: [HACKERS] keeping track of connections
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Msg-id 199806030411.AAA26288@candle.pha.pa.us
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Ответ на keeping track of connections  (Brett McCormick <brett@work.chicken.org>)
Ответы Re: [HACKERS] keeping track of connections  (Brett McCormick <brett@work.chicken.org>)
Re: [HACKERS] keeping track of connections  (The Hermit Hacker <scrappy@hub.org>)
Список pgsql-hackers
>
>
> I would love a way to keep track of the connections/attempted
> connections to the postmaster.  I'm thinking that when the postmaster
> accept()s a connection, it can just insert a record into a table
> (system catalog or not) with the information, which can be updated
> after the authentication succeeds/fails or whatnot.
>
> something like 'smbstatus' for the samba system.
>
> So, my question is: how should I go about doing this?  should I look
> into SPI, which I know nothing about?  or, what..  I don't think the
> catalog cache stuff needs to be changed, it isn't as if this info
> needs to be immediately accessible.

Good question.  Postmaster does not have access to the system tables, so
it can't access them.  You could add a debug option to show it in the
server logs, or add it to the -d2 debug option that already shows SQL
statements.


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