| From: | Bruce Guenter <bruceg(at)em(dot)ca> |
|---|---|
| To: | "'pgsql-hackers(at)postgresql(dot)org'" <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: CRCs (was: beta testing version) |
| Date: | 2000-12-07 21:47:07 |
| Message-ID: | 20001207154707.A1939@em.ca |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-hackers |
On Thu, Dec 07, 2000 at 12:22:12PM -0800, Mikheev, Vadim wrote:
> > > That's why an end marker must follow all valid records.
> > That requires an extra out-of-sequence write.
> Yes, and also increase probability to corrupt already committed
> to log data.
Are you referring to the case where the drive loses power in mid-write?
That is solved by either arranging for the markers to always be placed
at the start of a block, or by plugging in a UPS.
--
Bruce Guenter <bruceg(at)em(dot)ca> http://em.ca/~bruceg/
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Bruce Guenter | 2000-12-07 21:58:03 | Re: CRCs (was: beta testing version) |
| Previous Message | Tom Lane | 2000-12-07 21:43:59 | Re: v7.1 beta 1 ...packaged, finally ... |