On 02/13/2011 07:18 PM, Massimo Lusetti wrote: > Hi all, > Does the inner Lucene index commit toghether with the Transaction > success()/finish() cycle? > > I mean if I start a Transaction and do like > http://wiki.neo4j.org/content/Transactions#Big_transactions I suppose > I'm guarantee the Lucene index is synched to disk as soon as the > Transaction finish(), right?
Hi Massimo, your understanding is correct. The lucene index is exposed as a XAResource that participates in the global transaction that is started with graphDb.beginTx() and committed on successful tx.finish(). The commit (or rollback) happens through a 2PC which ensures that it is treated as an atomic operation. The info on Big Transactions is essentially just a workaround for avoiding running out of memory, so the principle as I outlined it above still holds. cheers, CG _______________________________________________ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
