Re: [HACKERS] Recovery on incomplete write
Bruce Momjian <maillist@candle.pha.pa.us>
From: Bruce Momjian <maillist@candle.pha.pa.us>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: Hiroshi Inoue <Inoue@tpf.co.jp>, pgsql-hackers <pgsql-hackers@postgreSQL.org>
Date: 1999-09-28T14:54:26Z
Lists: pgsql-hackers
> "Hiroshi Inoue" <Inoue@tpf.co.jp> writes: > > I have wondered that md.c handles incomplete block(page)s > > correctly. > > Am I mistaken ? > > I think you are right, and there may be some other trouble spots in that > file too. I remember thinking that the code depended heavily on never > having a partial block at the end of the file. > > But is it worth fixing? The only way I can see for the file length > to become funny is if we run out of disk space part way through writing > a page, which seems unlikely... > That is how he got started, the TODO item about running out of disk space causing corrupted databases. I think it needs a fix, if we can. -- Bruce Momjian | http://www.op.net/~candle maillist@candle.pha.pa.us | (610) 853-3000 + If your life is a hard drive, | 830 Blythe Avenue + Christ can be your backup. | Drexel Hill, Pennsylvania 19026