Re: Cancel/Kill backend functions

From: "Magnus Hagander" <mha(at)sollentuna(dot)net>
To: "Bruce Momjian" <pgman(at)candle(dot)pha(dot)pa(dot)us>
Cc: "Neil Conway" <neilc(at)samurai(dot)com>, <pgsql-patches(at)postgresql(dot)org>
Subject: Re: Cancel/Kill backend functions
Date: 2004-05-27 18:08:34
Message-ID: 6BCB9D8A16AC4241919521715F4D8BCE34BB46@algol.sollentuna.se
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Arrgh, when will I ever learn :-(

Attached.

//Magnus

>-----Original Message-----
>From: Bruce Momjian [mailto:pgman(at)candle(dot)pha(dot)pa(dot)us]
>Sent: den 26 maj 2004 20:50
>To: Magnus Hagander
>Cc: Neil Conway; pgsql-patches(at)postgresql(dot)org
>Subject: Re: [PATCHES] Cancel/Kill backend functions
>
>
>
>Magnus, would you please resumbit this as a context diff?
>
>---------------------------------------------------------------
>------------
>
>Magnus Hagander wrote:
>> Okay, here is an updated patch. now uses IsBackendPid(), which is
>> closely modeled (read cut-and-pasted) from
>> TransactionIdIsInProgress().
>>
>> Since it's no longer a pgstat function, I moved it to "misc.c". Not
>> 100% that's the right place either, but it seemed like the best
>> alternative.
>>
>> //Magnus
>>
>>
>> >-----Original Message-----
>> >From: Neil Conway [mailto:neilc(at)samurai(dot)com]
>> >Sent: den 22 maj 2004 10:00
>> >To: Magnus Hagander
>> >Cc: pgsql-patches(at)postgresql(dot)org
>> >Subject: Re: [PATCHES] Cancel/Kill backend functions
>> >
>> >
>> >Magnus Hagander wrote:
>> >> Per previous discussions, here are two functions to send INT and
>> >> TERM signals to other backends.They permit only INT and TERM, and
>> >> permits sending only to postgresql backends (as registered in
>> >> pgstat).
>> >
>> >Why does this depend on pgstat? ISTM it would be better to use the
>> >per-backend PGPROC information, which is stored in shared memory.
>> >Consider TransactionIdIsInProgress() for an example.
>> >
>> >-Neil
>> >
>
>Content-Description: termbackend.patch
>
>[ Attachment, skipping... ]
>
>>
>> ---------------------------(end of
>> broadcast)---------------------------
>> TIP 7: don't forget to increase your free space map settings
>
>--
> Bruce Momjian | http://candle.pha.pa.us
> pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 359-1001
> + If your life is a hard drive, | 13 Roberts Road
> + Christ can be your backup. | Newtown Square,
>Pennsylvania 19073
>

Attachment Content-Type Size
termbackend2.patch application/octet-stream 5.4 KB

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