Re: pg_xlog becomes extremely large during CREATE INDEX

>>>>> "TL" == Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> writes:

TL> However, that still doesn't explain how you got into the current state.
TL> Had you once had checkpoint_segments set much higher than the current
TL> value of 24? On looking at the code I see that it doesn't make any
TL> attempt to prune future log segments after a decrease in
TL> checkpoint_segments, so if a previous misconfiguration had allowed the
TL> number of future segments to get really large, that could be the root of
TL> the issue.

Wow... that explains it!

I bumped up checkpoint segments to 50 for a restore since it made it
run way faster. In normal operation I don't need that many so I
dropped it back down but it didn't reclaim any space so I figured I
might as well keep it at 50...

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