I had a partition space filled up by some log file in a user A's home
directory. The size of that log file was 15G. User A deleted that file but
to my surprise the disk space was not freed. I rechecked it and there was
no file of 15G size in user A's directory. But when I run 'du' on user A's
directory, t was still showing the same directory size as it was before
deleting the log file. 'df' command was also showing 100% for that
partition. After more than an hour after I kept trying to empty up some
space by deleting files from other directories, the disk space became free
and showed more than 15G available.
I wonder why the disk space was freed after so huge delay?. Does
anyone have also experienced same kind of problem?. What could be the
cause and how to make it free up the space quickly. ?
Sometimes applications keep file descriptors open, this results in the space
remaining allocated even when the file is deleted. When the application
closes the descriptor, the space is freed.
This is most evident when applications are logging to a file, I have several
applications that do this. When moving/removing the log I have to restart
the application for the space to be freed.
HTH.
Pete.
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