HDFS Disk Usage – Ranger

Using HDP 2.2 Sandbox on the Ambari Dashboard I notice that HDFS Disk Usage circle was red and the usage was 95%. I don’t have all that much data. So I set out to find out what was using it all and I found:

$ sudo -u hdfs hadoop fs -du /
7497031      /app-logs
229265468    /apps
881591       /demo
413489640    /hdp
0            /mapred
0            /mr-history
20616255563  /ranger
0            /system
4599988      /tmp
239285045    /user

Ranger? It looks like it’s all audit files.

$ sudo -u hdfs hadoop fs -du /ranger/audit/
274172       /ranger/audit/hbaseMaster
3027170361   /ranger/audit/hbaseRegional
17578061921  /ranger/audit/hdfs
0            /ranger/audit/knox
0            /ranger/audit/storm

Why so many?