Cassandra CAS DELETE does not work? -

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I am using Casandra 2.0.6 with the datastax java cassandra driver 2.0.0 in the cluster of three nodes:

I am inserting one immediately after deletion: "Where to delete key from x =? IF version =?"

And then a quick check whether DELETE was successful.

The result is that sometimes it happens and sometimes it does not happen. So I'm wondering if CAS Delite is actually implemented in these versions?

Just like "if possible," it seems to be implementing CAS Daily ... it is not sure which edition can it be found or is it going to continue?


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