RE: Improving Ext2 Reliability

Benjamin C.R. LaHaise (blah@kvack.org)
Tue, 14 Apr 1998 20:01:10 -0400 (EDT)


On Tue, 14 Apr 1998, Jordan Mendelson wrote:

> The cache takes quite a long time to rebuild and I don't feel like wasting
> bandwidth to save 30 minutes :)

You've missed a major concern: a cache with corrupt data is a disservice
to your users. Squid does *not* verify that the data contained within the
cache is correct. Some very good points to this effect have been made in
the recent thread 'NT causes $10M loss' on cold.system. Consistent
metadata buys you nothing if you don't verify the data's valid. Fsck is
*only* meant to exit when a filesystem has valid metadata which the
sysadmin can use to clean up the mess after a crash (preferably restoring
from backup).

> I'm finally just scrapping 2.0.x and moving to 2.1.9x so I can at least get
> alt-sysrq and some better debugging messages. Hell, 2.1.9x has been more
> stable on my development boxes than the 2.0.33+ on my production machines.
> :)

Good luck! =)

-ben

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