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RE: Questions...

--On Tuesday, January 27, 2004 7:24 AM -0500 Frank Swasey <Frank.Swasey@uvm.edu> wrote:

On Mon, 26 Jan 2004 at 7:03pm, Howard Chu wrote:

In BDB 4.2 there's a new option to turn off transaction logging. This can
provide another 25% gain for bdb/hdb.

Isn't the transaction log the log.* files that are used by db_recover to rebuild the database (without a complete slapadd) after a system crash? So, wouldn't turning that off be *bad*?

I believe the point is to turn the log.* files off for the full data load, not to keep them off after the system has started running. Much as in the same way one does the DB_TXN_NOSYNC flag when doing the initial dataload.


Quanah Gibson-Mount
Principal Software Developer
ITSS/TSS/Computing Systems
ITSS/TSS/Infrastructure Operations
Stanford University
GnuPG Public Key: http://www.stanford.edu/~quanah/pgp.html