Workaround for Linux server not to free storage space after deleting large files

To view disk space usage:
Df-h

View the space occupied by the first level directory under the root directory:
Du-h--max-depth=1/

Find files larger than 2000M in the root directory:
Find/-size +2000m

Find files that have been deleted, but are still occupied by the process:
Lsof |grep deleted

Review the process information based on the process ID found in the previous step:
Ps-ef | grep pid

Services to restart the process:
Use the kill-9 PID command to stop the process.

After that, disk space is freed.

Workaround for Linux server not to free storage space after deleting large files