Erin Munro <[EMAIL PROTECTED]> writes:
> An empty database cluster takes up 20 MB, 16 of which
> are dedicated to a WAL file. This seems to be a lot
> for a small or low-traffic database. Is there any way
> to reduce the size of this WAL file, besides reverting
> to version 7.0 (where WAL isn't used)?
Reduce XLogSegSize in src/include/access/xlog.h. Recompile,
re-initdb (or at least do pg_resetxlog), put up with more frequent
checkpoints.
With sufficiently low write activity this might be worthwhile, but
I find it hard to think of any recently-manufactured hardware wherein
16MB of disk space is worth agonizing over.
regards, tom lane
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