HDFS Free Space Command
Posted by sranka on March 17, 2014
Hi All
With increasing data volume , in HDFS space could be continued challenge. While running into some space related issue, following command came very handy, hence thought of sharing with extended virtual community.
At times it gets challenging to know how much of actual space a directory or a file is using. Having a command which can give you human readable format of size is always useful. Below command shows how to get actual human readable file size on HDFS
hdfs dfs -du -h / 241.3 G /app 9.8 G /benchmarks 309.6 G /hbase 0 /system 59.6 G /tmp 20.0 G /user [sranka@devHadoopSrvr06 ~]$
hadoop dfsadmin -report
Post running the command, below is the result, it takes all the nodes in the cluster and gives the detail break-up based on the space availability and spaces used.
Configured Capacity: 13965170479105 (12.70 TB) Present Capacity: 4208469598208 (3.83 TB) DFS Remaining: 2120881930240 (1.93 TB) DFS Used: 2087587667968 (1.90 TB) DFS Used%: 49.60% Under replicated blocks: 0 Blocks with corrupt replicas: 0 Missing blocks: 0 ------------------------------------------------- Datanodes available: 5 (5 total, 0 dead) Live datanodes: Name: 160.33.148.202:50010 (devHadoopSrvr08.ps.am.mycompany.com) Hostname: devHadoopSrvr08.ps.am.mycompany.com Rack: /default Decommission Status : Normal Configured Capacity: 2793034095821 (2.54 TB) DFS Used: 381953257472 (355.72 GB) Non DFS Used: 1986904386765 (1.81 TB) DFS Remaining: 424176451584 (395.05 GB) DFS Used%: 13.68% DFS Remaining%: 15.19% Last contact: Mon Mar 17 12:43:05 PDT 2014 Name: 160.33.148.204:50010 (devHadoopSrvr10.ps.am.mycompany.com) Hostname: devHadoopSrvr10.ps.am.mycompany.com Rack: /default Decommission Status : Normal Configured Capacity: 2793034095821 (2.54 TB) DFS Used: 402465816576 (374.83 GB) Non DFS Used: 1966391827661 (1.79 TB) DFS Remaining: 424176451584 (395.05 GB) DFS Used%: 14.41% DFS Remaining%: 15.19% Last contact: Mon Mar 17 12:43:05 PDT 2014 Name: 160.33.148.203:50010 (devHadoopSrvr09.ps.am.mycompany.com) Hostname: devHadoopSrvr09.ps.am.mycompany.com Rack: /default Decommission Status : Normal Configured Capacity: 2793034095821 (2.54 TB) DFS Used: 391020421120 (364.17 GB) Non DFS Used: 1977837223117 (1.80 TB) DFS Remaining: 424176451584 (395.05 GB) DFS Used%: 14.00% DFS Remaining%: 15.19% Last contact: Mon Mar 17 12:43:06 PDT 2014 Name: 160.33.148.201:50010 (devHadoopSrvr07.ps.am.mycompany.com) Hostname: devHadoopSrvr07.ps.am.mycompany.com Rack: /default Decommission Status : Normal Configured Capacity: 2793034095821 (2.54 TB) DFS Used: 389182472192 (362.45 GB) Non DFS Used: 1979675172045 (1.80 TB) DFS Remaining: 424176451584 (395.05 GB) DFS Used%: 13.93% DFS Remaining%: 15.19% Last contact: Mon Mar 17 12:43:04 PDT 2014 Name: 160.33.148.59:50010 (devHadoopSrvr06.ps.am.mycompany.com) Hostname: devHadoopSrvr06.ps.am.mycompany.com Rack: /default Decommission Status : Normal Configured Capacity: 2793034095821 (2.54 TB) DFS Used: 522965700608 (487.05 GB) Non DFS Used: 1845892140237 (1.68 TB) DFS Remaining: 424176254976 (395.04 GB) DFS Used%: 18.72% DFS Remaining%: 15.19% Last contact: Mon Mar 17 12:43:05 PDT 2014
Hope This Helps
Sunil S Ranka
“Superior BI is the antidote to Business Failure”
Leave a comment