On Sat, May 31, 2008 at 3:41 AM, Greg Smith <
gsmith@gregsmith.com> wrote:
On Sat, 31 May 2008, Gurjeet Singh wrote:
Not if you use pg_clearxlogtail
This means we need to modify pg_standby to not check for filesize when
reading XLogs.
No, the idea is that you run the segments through pg_clearxlogtail | gzip, which then compresses lightly used segments massively because all the unused bytes are 0. File comes out the same size at the other side, but you didn't ship a full 16MB if there was only a few KB used.
Got it. I remember reading about pg_clearxlogtail in these mailing lists; but somehow forgot how it actually worked!
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