Hi all, I am running out of space on a data node, so added a new volume to the host, mounted it and made sure the permissions were set OK. Then I updated the 'DataNode Directories' property in Ambari to include the new path (comma separated, i.e. '/hadoop/hdfs/data,/data/hdfs'). Next I restarted the components with stale configs for that host, but the DataNode wouldn't come back up, reporting 'connection refused'. When I remove the new data directory path from the property and restart, it starts fine.
What am I doing wrong? Thanks, Charles
