Hi,in solr-6.3.0/solr/core/src/java/org/apache/solr/cloud/overseer/ClusterStateMutator.java there is the following code starting line 107:
//TODO default to 2; but need to debug why BasicDistributedZk2Test fails early on String znode = message.getInt(DocCollection.STATE_FORMAT, 1) == 1 ? null
: ZkStateReader.getCollectionPath(cName); Any if that will be changed to default to version 2 anytime soon? thanks, Hendrik