bzr-git, tdb and sqlite

[Russel Winder]

Jelmer,

On Sat, 2010-04-03 at 13:04 +0200, Jelmer Vernooij wrote:

> I have recently been working on improving the infrastructure for using
> caches in bzr-git. One of the consequences of this is that it will
> always try to open the existing cache file that is present and uses a
> single cache file, rather than whatever it can manage to open.

I had spotted the rapid change of bzr-git and Dulwich so I had assumed
there was a cache thing happening.

> You're seeing this error because it's trying to move the cache to a
> single location and failing because there's two caches (tdb and
> sqlite) it is trying to move to that single location. I wonder what
> the best course of action is in that situation, but giving an obscure
> error message certainly isn't the right approach.

I guess my only problem is that if I simply remove the caches I suffer a
very long next access period, but maybe that is just a small price to
pay?

The message I posted is just the first few lines of a long stack trace,
which is definitely not the right message I'm afraid.  It would be much
better to have a message that is less aggressive.

Given that I am using both SQLite and TDB caches in the same filestore I
guess I am not going to be able to anything until the new cache
technology is in place?  

> This is all happening in preparation of a new cache format that is
> based on Bazaar pack files, should be faster *and* concurrently accessible 
> *and* NFS friendly.

Sign me up :-)

-- 
Russel.
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Dr Russel Winder      Partner
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