Adding dfs.datanode.data.dir - problematic via Ambari

[#1]

Trying to add more space to HDFS, I tried to follow available instructions.

The problem is that while dfs.datanode.data.dir suppose to be comma-delimited value, Ambari notify it is wrong.

Without the comma, or with semicolon, it seems to pass validation - but I rather not try to save those changes without telling what it will do.

Any help would be appreciated.

[#2 · Accepted solution]

@Shushu Inbar

Can you specify like this -

/hadoop/hdfs/data,/hdfs_volume

Please do not specify it on new like via pressing "Enter".

Let me know if it works.