Re: WAL & RC1 status - Mailing list pgsql-hackers

From Bruce Momjian
Subject Re: WAL & RC1 status
Date
Msg-id 200103021637.LAA27673@candle.pha.pa.us
Whole thread Raw
In response to Re: WAL & RC1 status  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-hackers
> Bruce Momjian <pgman@candle.pha.pa.us> writes:
> > Well, I was thinking a few things.  Right now, if we update the
> > catversion.h, we will require a dump/reload.  If we can update just the
> > WAL version stamp, that will allow us to fix WAL format problems without
> > requiring people to dump/reload.
> 
> Since there is not a separate WAL version stamp, introducing one now
> would certainly force an initdb.  I don't mind adding one if you think
> it's useful; another 4 bytes in pg_control won't hurt anything.  But
> it's not going to save anyone's bacon on this cycle.
> 
> At least one of my concerns (single point of failure) would require a
> change to the layout of pg_control, which would force initdb anyway.
> Anyone want to propose a third version# for pg_control?

I now remember Hiroshi complaining about major WAL problems also,
particularly corrupt WAL files preventing the database from starting.

--  Bruce Momjian                        |  http://candle.pha.pa.us pgman@candle.pha.pa.us               |  (610)
853-3000+  If your life is a hard drive,     |  830 Blythe Avenue +  Christ can be your backup.        |  Drexel Hill,
Pennsylvania19026
 


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