hadoop - HDFS capacity mismatch -


i'm doing tests on hadoop , hdfs full after tests. deleted lot of test files recursively released space not as expected.

running hadoop fs -du -s / command, reports 876447242289. means 0.8 tb. in name node ui, reports 12 tb still in used.

configured capacity  :   19.89 tb dfs used         :   12.15 tb non dfs used     :   801.66 gb dfs remaining    :   6.95 tb dfs used%        :   61.11 % dfs remaining%   :   34.96 % block pool used  :   12.15 tb block pool used% :   61.11 %

i ran `df -h. in each data node , found same result name node ui.

i checked .trash folder , nothing there. looks many files removed name node, still not deleted in data node. can on this?

i found space released gradually. after 8 hours, spaces held deleted files released.


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