Flag '--decompress' doesn't work in Linuх, but does in Windows

[ramiros-ua]

Which version of the AzCopy was used?

Note: The version is visible when running AzCopy without any argument

azcopy version 10.20.1

Which platform are you using? (ex: Windows, Mac, Linux)

Red Hat Enterprise Linux release 8.2 (Ootpa)

What command did you run?

Note: Please remove the SAS to avoid exposing your credentials. If you cannot remember the exact command, please retrieve it from the beginning of the log file.

azcopy cp with flag '--decompress' both on Windows and Linux

What problem was encountered?

no actual downloading, no errors in Linux

How can we reproduce the problem in the simplest way?

1. Upload gz file with encoding-content
   azcopy cp ./test.file.gz https://mystorageaccount.blob.core.windows.net/backup/test/test.file.gz --content-encoding 'gzip'
2. Download in Windows - it works
   C:\temp\azcopy_windows_amd64_10.20.1\azcopy_windows_amd64_10.20.1\azcopy cp https://mystorageaccount.blob.core.windows.net/backup/test/test.file.gz ./ --decompress
   ...
   Number of File Transfers Completed: 1
   TotalBytesTransferred: 293739
   Final Job Status: Completed

C:\temp\download> ls
Mode LastWriteTime Length Name

---

-a--- 9/29/2023 2:13 PM 104865792 test.file

3. Download in Linux - doesn't work
   azcopy cp https://mystorageaccount.blob.core.windows.net/backup/test/test.file.gz ./ --decompress
   Number of File Transfers Completed: 1
   TotalBytesTransferred: 293739
   Final Job Status: Completed

echo $?
0

ls -l
total 0
ls -la
0 Sep 29 13:17 .azDownload-3a4d7cb4-b09b-c847-7377-eefbf4da1f9a-test.file

We can see, that in Linux azcopy has returned 0, but nothing downloaded, only temp hidden file of zero-size

Have you found a mitigation/solution?

Workaround
do not use --decompress, and after downloading run gunzip

[heiner]

+1, azcopy with --decompress is broken in newer versions. 10.16.2 is the last version where this worked.

[gapra-msft]

Closing this issue as a PR was merged that will be released as part of 10.23.0 which will resolve this issue.