Pro 7.0.0 beta: elasticsearch respawning



I just upgraded my test server from pro 6.3.13 to 7.0.0 beta on Scientific Linux 7.6. The upgrade works without problems, but the elasticsearch process is permanently respawning with the following error:

[2019-04-11T11:15:22,249][WARN ][o.e.d.e.NodeEnvironment  ] ES has detected the [] folder using the cluster name as a folder [/home/seafile/pro-data/search/data], Elasticsearch 6.0 will not allow the cluster name as a folder within the data path