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--- filesystem_usage_delete_files [2015/07/02 08:18] – created luke7858
+++ filesystem_usage_delete_files [2024/05/23 07:26] (current) – external edit 127.0.0.1
@@ Line 1: / Line 1: @@
+== Clearing Deleted Files WITHOUT an Application Restart ==
+Ever deleted a file and wondered why the disk space hasn't cleared?
+\\
+Chances are the application is still keeping the old file open.
+\\
+One way to "release" the file is to restart the application, however 99% of the time this is NOT ideal!!
+\\
+\\
+) First we find the file descriptor for the offending file.
+\\
+NOTE: you may be spammed with a lot of files from /tmp/ or similar directorys. Find the appropriate file for your situation.
 <sxh bash>
-lsof | grep 'Deleted'
+find /proc/*/fd -ls | grep  '(deleted)'
+</sxh>
+Get the file descriptor from the deleted file, it will look similar to:
+<sxh bash>
+/proc/6755/fd/6
+</sxh>
+Once you have this we can delete the file by emptying it. Replacing the following command with the $pid and $fd we got above:
+\\
+<sxh bash>
+> "/proc/$pid/fd/$fd"
+</sxh>
+Example:
+<sxh bash>
+> "/proc/6755/fd/6"
+</sxh>
+\\
+\\
+\\
+== JUST ECHO NOTHING INTO THE FILE ==
+Instead of deleting large files, simpy echo "" into it:
+<sxh bash>
+echo "" > /var/log/httpd/large_access.log
 </sxh>