[email protected] wrote: > [email protected] wrote: >> Full_Name: Quanah Gibson-Mount >> Version: 2.4.30 >> OS: Linux 2.6 >> URL: ftp://ftp.openldap.org/incoming/ >> Submission from: (NULL) (75.108.184.39) >> >> >> If you create a script to add& delete the same 50,000 users, and then >> re-run >> that script multiple times, the MDB database on disk continues to grow, >> despite >> the fact that we are only adding and deleting the same data repeatedly. >> There >> should be zero growth to the database. >> >> Instead, the data.mdb file went from 108MB in size to over 1.2GB after 5-6 >> runs. >> Time to add/delete all the users went from 3 minutes 32 seconds on the >> first >> run to over 90 minutes on the final run (5th or 6th, I lost count). > > At present, MDB is working as intended. In your test a number of overflow > pages are being used. Currently libmdb always allocates overflow pages from > new space, because it's not smart enough to search the free list for > contiguous pages. Can treat this ITS as an enhancement request for that > purpose, but this is not a new issue nor is it unexpected in the current > version of MDB. > Hm, I take this back. The overflow pages are not enough to account for the difference. Still looking.
-- -- Howard Chu CTO, Symas Corp. http://www.symas.com Director, Highland Sun http://highlandsun.com/hyc/ Chief Architect, OpenLDAP http://www.openldap.org/project/
