Thomas Jarosch via Cyrus-devel wrote:
On Sunday, 19. June 2016 07:55:55 Bron Gondwana via Cyrus-devel wrote:
I've also been looking at Rocks DB. Unfortunately their C wrapper (it's
C++) doesn't seem to include the transaction support, so I'll have to
either extend it or write my own.
One major goal here, and the reason I'm looking at multi-level databases
in particular, is the ability to have most of the unchanging data
uploaded to an object store, and only need to push a small log file each
time something changes.
plain old Berkeley DB 6.x might be an option, too.
It has transaction support, page level locking and is a key-value store.
Not sure about the licensing issues though:
http://www.infoworld.com/article/2611450/open-source-software/oracle-switches-berkeley-db-license.html
http://www.oracle.com/technetwork/products/berkeleydb/downloads/licensing-098979.html
Licensing is one of the reasons we have abandoned BerkeleyDB in OpenLDAP.
That, and LMDB is orders of magnitude faster than BerkeleyDB.
Also it's not a "multi-level" database.
--
-- Howard Chu
CTO, Symas Corp. http://www.symas.com
Director, Highland Sun http://highlandsun.com/hyc/
Chief Architect, OpenLDAP http://www.openldap.org/project/
