Ioannis, it's not a straightforward process to migrate from DSE to COSS. There are some parts of DSE which are not recognised by COSS, e.g. EverywhereStrategy for replication only known to DSE.
You are better off standing up a new COSS 3.11 cluster and restore app keyspaces to the new cluster. Cheers! On Wed, Aug 16, 2017 at 6:33 AM, Ioannis Zafiropoulos <john...@gmail.com> wrote: > Hi all, > > We have setup a new cluster DSE 5.1.2 (with Cassandra 3.11.0.1758) and we > want to migrate it to Apache Cassandra 3.11.0 without loosing schema or > data. > > Anybody, has done it before? > > Obviously we are going to test this, but it would be nice to hear if > somebody else has gone through with the procedure. > > Thank you! >