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Re: Streamy FS writes found detrimental.

From: Daniel Berlin <dan_at_dberlin.org>
Date: 2002-02-27 02:36:12 CET

> And if we (by default) prune the logs at each commit, then we're quite fine.

We should prune the logs after every 10 megs of commits (there are only
two places we do database puts, so this is trivial. It's only new data and
replaces that store full text in the log).

Just keep a counter somewhere or something.

> I'm not really worried about the log stuff.

I'm worried of what it's symptomatic of, rather than the actual issue

Although, i'm with Greg Hudson that it leaves a bad taste in my mouth
about BDB.

The least they could have done is provide a way to tell it that you only
want x amount of space ever taken up by logs over more than one
transaction (since you can't do anything about the log size for a
single transaction), and have bdb take care of it.

Instead, they just shove the whole issue off to the user, and barely
mention it in the manual that it could become a problem.

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Received on Sat Oct 21 14:37:10 2006

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