TitanDB删除包括索引在内的所有内容

Question

I would like to drop everything from TitanDB.

This says that it's possible by removing all the vertices but I am failing to delete the graph with that recommended approach. I can't do gVremove() in java and when I delete each Vertex independently this only gets rid of the vertices but leaves behind the indexes.

Is there a way (from within java) of dropping everything ? I am essentially looking for the equivalent of using cqlsh and typing:

cqlsh> DROP KEYSPACE titan;

Answer 1

If you want to stick to the Titan tools, what about the TitanCleanup utility?

http://thinkaurelius.github.io/titan/javadoc/1.0.0/com/thinkaurelius/titan/core/util/TitanCleanup.html

Nuking the C* keyspace will certainly do the trick with great efficiency, though might leave external ("mixed") indexes stranded if you have them.

Answer 2

You could use the Cassandra Java driver to connect to Cassandra and drop the keyspace. Make sure to close the TitanGraph first.