Re: BDB 4.3 & DB_TXN_NOT_DURABLE

[Howard Chu <hyc@symas.com>]

Howard Chu wrote:

> Quanah Gibson-Mount wrote:
>
> > setting the flag DB_TXN_NOT_DURABLE to quick-load a DB without 
> > creating log files no longer works anymore, either.
> http://www.sleepycat.com/docs/ref/upgrade.4.3/log.html
>
> This flag has been superseded by DB_LOG_INMEMORY.
Except that it doesn't work as documented; the docs says the default 
in-memory log buffer size is 1MB but it behaves as if the default size 
is zero. I.e., if you don't specify a log buffer size (DB_CONFIG 
set_lg_bsize) then this DB_LOG_INMEMORY flag doesn't work at all. It 
seems to work fine once you have it set though. I've sent a query to 
Sleepycat about this, whether their doc or their code is wrong...

I've changed back-bdb's fasttool option in HEAD to use the new flag, so 
beware if you use it.

--
 -- Howard Chu
 Chief Architect, Symas Corp.       Director, Highland Sun
 http://www.symas.com               http://highlandsun.com/hyc
 Symas: Premier OpenSource Development and Support