Diskusage Explorer: Difference between revisions
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This command loads a browser that shows the resources consumed by all files under any directory tree | This command loads a browser that shows the resources consumed by all files under any directory tree | ||
[[File:Ncurse duc.png|thumb|using|450px|frame|left| Navigating your project space with duc ncurse tool]] | [[File:Ncurse duc.png|thumb|using|450px|frame|left| Navigating your project space with duc's ncurse tool]] | ||
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[[File:Duc gui navigation.gif|thumb|using|450px|frame|left|Navigating | [[File:Duc gui navigation.gif|thumb|using|450px|frame|left|Navigating your project space with duc's GUI tool]] | ||
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Revision as of 20:06, 25 May 2021
Content of Folders
Warning: At the moment this feature is only available on Béluga.
You can get a breakdown by folder of how the diskspace is being consumed in your home, scratch and project spaces. That information is currently updated once a day and is stored in an SQLite format for fast access.
Here is a walkthrough of how to explore your disk consumption, using the example of the project space def-professor as the particular directory to investigate.
Ncurse User Interface
Choose a project space you have access to and which you wish to analyze, which for the purpose of this discussion we will assume to be def-professor.
[name@server ~]$ diskusage_explorer /project/def-professor
This command loads a browser that shows the resources consumed by all files under any directory tree
Type c to toggle between consumed disk space and the number of files, q or <esc> to quit and h for help.
If you are only interested in a sub-directory of this project space and do not want to navigate the whole tree in the ncurse user interface,
[name@server ~]$ diskusage_explorer /project/def-professor/subdirectory/
A complete manual page is available with the man duc command.
Graphical User Interface
Note that when the login node is especially busy or if you have an especially large amount of files in you project space, the graphical interface mode can be slow and choppy. For a better experience, you can read the section below to run diskusage_explorer on your own machine.
Note that Compute Canada recommends the use of the standard text-based ncurse mode on our cluster login nodes but diskusage_explorer does also include a nice graphical user interface (GUI).
First make sure that you are connected to the cluster in such a way that SSH is capable of correctly displaying GUI applications. You can then use a graphical interface by means of the command,
[name@server ~]$ duc gui -d /project/.duc_databases/def-professor.sqlite /project/def-professor
You can navigate the folders with the mouse and still type c to toggle between the size of the files and the number of files.
Browse faster on your own machine
First install the diskusage_explorer software on your local machine and then, still on your local machine, download the SQLite file from your cluster and run duc.
rsync -v --progress username@beluga.calculcanada.ca:/project/.duc_databases/def-professor.sqlite . duc gui -d ./def-professor.sqlite /project/def-professor
This immediately leads to a smoother and more satisfying browsing experience.