Azcopy Download
Laveta Nachman
I downloaded the azcopy folder and unzipped it onto my computer. When I open it it says "You need to open cmd.exe and run it from there" and then it closes the screen within a few seconds. I've tried searching this line and come up with nothing... Thank you.
Much thanks for your answer! It all comes down to the fact that I thought I was to run azcopy by opening that file - didn't realize I had to run it on a command prompt app. But that still may not have worked without your code to get azcopy working on my command prompt app.
From the top output, I can confirm that rclone is reporting just 0.46G RES vs 3.3G for azcopy. Likewise, the VIRT reported is just 1.1G vs 4.4G for azcopy. Clearly, azcopy by default is using much more memory.
Thank you - very interested in your findings. I looked at the source of the azcopy tool and failed to work out what their default settings are yet! The code is quite complicated and obviously optimized for performance.
From the Azure side, you can elect to use Azure Active Directory (AD) or a SAS token. For me, I ran azcopy login to log in to Azure with my credentials. If you want to run inside a script or have more advanced use cases, it's a good idea to authorize a managed identity.
If running AzCopy for a while, you might deal with a stopped job. It could be because of failures or a system reboot. To start where you left off, you can run azcopy jobs list to get a list of your jobs in this format:
If you need to get to the bottom of any errors, you can change the default log level (the default is INFO) and filter by jobs with a Failed state. AzCopy creates log and plan files for every job you run in the %USERPROFILE%\.azcopy directory on Windows.
Whether to print the output from AzCopy to the screen; also sets whether an error return code from AzCopy will be propagated to an R error. Defaults to the value of the azure_storage_azcopy_silent option, or FALSE if this is unset.
AzureStor has the ability to use the Microsoft AzCopy commandline utility to transfer files. To enable this, ensure the processx package is installed and set the argument use_azcopy=TRUE in any call to an upload or download function; AzureStor will then call AzCopy to perform the file transfer rather than relying on its own code. You can also call AzCopy directly with the call_azcopy function.
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