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An asset is metadata plus content (content is the file) and namespaces are a virtual hierarchy of for assets.
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If you are doing a lot of scripting connecting to a Mediaflux remote, it is undesirable to populate lots of plain text files with your login details. This is where delegation becomes useful. Delegate credentials are binary tokens that reside in the home directory of the user that creates them. These credentials automatically perform a login on your behalf when interacting with Pawsey data storage. Here's an example of creating a delegate credential that lasts for approximately one month:
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pawsey:/projects>delegate 30
Delegating until: 01-Jun-2016 14:13:15
pawsey:/projects>exit |
From now on, until the delegate expires, there is no need to login to data storage on the machine where this was run. Any pshell sessions that are run will automatically use the delegate to login.
Finally, to destroy all delegate credentials, use:
| Code Block |
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pawsey:/projects>delegate off
Delegate credentials removed. |
| Info | ||
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You cannot create a new token while you are using an old token. So if you want to renew a token before it expires, you'll first need to delete the old token (use the "delegate off" command) and then log into the system using your username and password (use the "login" command). Once logged in like this, you can create a new delegate token as above. |
Asset metadata
Standard metadata
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For example, to count all PNG files stored in the entire Data Team project or and then to sum their sizes you would run, respectively:
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