[C++] "File name too long" when installing arrow-cpp from conda-forge

[ialxn]

Describe the bug, including details regarding any error messages, version, and platform.

Trying to install arrow-cpp by
conda install arrow-cpp
or
conda install -c conda-forge arrow-cpp
I get

Downloading and Extracting Packages

InvalidArchiveError("Error with archive /home/alxneit/share/miniconda3/pkgs/arrow-cpp-11.0.0-h374c478_1.conda.
You probably need to delete and re-download or re-create this file.
Message was:\n\nfailed with error: [Errno 36] File name too long: '/home/alxneit/share/miniconda3/pkgs/arrow-cpp-11.0.0-h374c478_1/share/gdb/auto-load/croot/arrow-cpp_1686080352370/_h_env_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placeho'")

conda info reports
active environment : 4DSTEM
active env location : /home/alxneit/share/miniconda3/envs/4DSTEM
shell level : 1
user config file : /home/alxneit/.condarc
populated config files : /home/alxneit/.condarc
conda version : 23.5.0
conda-build version : not installed
python version : 3.11.4.final.0
virtual packages : __archspec=1=x86_64
__glibc=2.31=0
__linux=5.4.0=0
__unix=0=0
base environment : /home/alxneit/share/miniconda3 (writable)
conda av data dir : /home/alxneit/share/miniconda3/etc/conda
conda av metadata url : None
channel URLs : https://repo.anaconda.com/pkgs/main/linux-64
https://repo.anaconda.com/pkgs/main/noarch
https://repo.anaconda.com/pkgs/r/linux-64
https://repo.anaconda.com/pkgs/r/noarch
package cache : /home/alxneit/share/miniconda3/pkgs
/home/alxneit/.conda/pkgs
envs directories : /home/alxneit/share/miniconda3/envs
/home/alxneit/.conda/envs
platform : linux-64
user-agent : conda/23.5.0 requests/2.29.0 CPython/3.11.4 Linux/5.4.0-152-generic ubuntu/20.04.6 glibc/2.31
UID:GID : 1000:1000
netrc file : None
offline mode : False

Yes, I removed and re-downloaded the offending file several times but the issue persists.

Component(s)

Other

[westonpace]

Is it possible your are using an encrypted home folder? Conda has an issue with this: conda/conda-build#1482

There are a few workarounds described there.

[ialxn]

Yes, indeed my home is encrypted. I checked the workarounds mentioned above, or better, I tried but failed. What exactly am I supposed to do exactly assuming I have access to some unencrypted dir like e.g. /tmp? I am probably just too stupid ...

conda install --croot /tmp arrow-cpp 
usage: conda [-h] [-V] command ...
conda: error: unrecognized arguments: --croot

I also tried (unsuccessfully) to set CONDA_BLD_PATH=/tmp and/or TMPDIR=/tmp as environment variables or to add

build:
  script_env:
   - TMPDIR

or

     root-dir: /tmp

to .condarc

[westonpace]

I think you want something like...

conda create -p /tmp/my_env
conda activate /tmp/my_env
conda install -c conda-forge arrow-cpp

While I think this will work I would be cautious about putting a conda environment in a tmp folder that is going to be deleted on restart.

[ialxn]

No, installing in /tmp is a no-brainer. So I'll have to simply install anaconda/miniconda outside the encrypted folder. Thanks a lot for the clarification(s)