[elephant-devel] [PATCH] Proper deadlock detection for BDB

[Leslie P. Polzer]

> Does this require BDB 4.7?  As I recall, conflict detection used to
> require a separate process to run correctly but there was a change in
> 4.6 or 4.7 to allow you to do this in the same process.

The function in question is DB_ENV->set_lk_detect, which
is available at least since 4.5 (just verified).

I have only tested this with 4.7 though, so we might want
to put the patch on hold until then.


> I can dig back into this to refresh my memory unless you are confident
> you're up to speed.

No, that's fine. Everything you wrote makes sense.

I'm going to test the other BDB versions and probably
give Allegro a go to check on cooperative mt.

It might also make sense to offer the external db_deadlock
solution as an option.

  Leslie

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