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Re: [BUGS] server crash in very big transaction [postgresql

From: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Gavin Sherry <swm(at)linuxworld(dot)com(dot)au>,Alvaro Herrera <alvherre(at)dcc(dot)uchile(dot)cl>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: [BUGS] server crash in very big transaction [postgresql
Date: 2004-08-30 03:18:54
Message-ID: 200408300318.i7U3IsU21206@candle.pha.pa.us (view raw or flat)
Thread:
Lists: pgsql-bugspgsql-hackers
This has just been fixed by Tom and will be in beta2.

---------------------------------------------------------------------------

Tom Lane wrote:
> Gavin Sherry <swm(at)linuxworld(dot)com(dot)au> writes:
> > As for extending the length of xl_len, what happens if someone now has
> > 2^30 subtransaction IDs (as unlikely as that sounds)?
> 
> They'll have run out of RAM to store the subxact-related storage before
> that (not to mention most likely have exhausted the CommandCounter
> range, not to mention exhausted their patience --- it takes a good while
> even to exercise the 2^16-subxact case).  I'm satisfied if we can
> approach that limit.  Exceeding it will be a task for some other release.
> 
> 			regards, tom lane
> 
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  Bruce Momjian                        |  http://candle.pha.pa.us
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