elasticsearch/elasticsearch — pull request #9119 by dakrone (2014-12-31 11:41:40+00:00)
Title: Don't enable custom data_path for backwards compatibility tests

Since some nodes in the test may not support the feature, it should be
disabled in the random tests for all the BackwardsCompatIntegrationTests

This also adds a check in `MetaDataCreateIndexService` for all nodes to
be at least 1.5.0+ when creating an index with a custom data_path. It
will only work if the 1.5.0 node is the master in the cluster, but it is
better protection than nothing.