We had a weird thing where one of our data nodes was 100% disk full (all
hdfs data) and the other nodes were uniformly 20% space utilizated.
Just wondering if this is a bug or whether we made an operator error.
The node in question is not one of primary or secondary namenodes. It's
never been the case that we have been running with any significant
number of nodes dead (never been worse than 2).
The only thing is that I have often done 'dfs -put' of large files (from
a NFS mount) from this node. Would this case local storage to be
allocated by HDFS?