CondaError: OSError(122, 'Disk quota exceeded') and Changing the Default Package Directory

While using Anaconda with a fixed size home space, a user may encounter the following error

CondaError: OSError(122, 'Disk quota exceeded'

In some cases it is useful to change the package cache and/or the envs directories from the default locations. The default locations, for Windows and OS X/Linux respectively, are:

C:\Users\User\.conda\envs
C:\Users\User\.conda\pkgs
/Users/User/.conda/envs
/Users/User/.conda/pkgs

envs_dir

In your .condarc file you can specify directories in which environments are located by defining the envs_dir variable.

EXAMPLE .condarc:

envs_dirs:
   - ~/my-envs
   - /opt/anaconda/envs

The envs_dir key also determines where the package caches are located. However, the CONDA_ENVS_PATH environment variable overwrites this setting. You can set the CONDA_ENVS_PATH the following ways:

For macOS and Linux: CONDA_ENVS_PATH=~/my-envs:/opt/anaconda/envs
For Windows: set CONDA_ENVS_PATH=C:\Users\joe\envs;C:\Anaconda\envs

pkg_dir

In your .condarc file you can specify directories in which packages are located.

EXAMPLE .condarc:

pkg_dirs:
  - /opt/anaconda/pkgs

The pkg_dir key will have no effect on where the envs are stored.

However, the CONDA_PKGS_DIRS environment variable overwrites this setting. You can set the CONDA_PKGS_DIRS the following ways:

For macOS and Linux: CONDA_PKGS_DIRS=/opt/anaconda/pkgs
For Windows: set CONDA_PKGS_DIRS=C:\Anaconda\pkgs

Even when envs_dirs is set in your .condarc file conda may use the first directory it can write to, this is typically the default in ~/.conda/. When trying to change the default cache directory it may be necessary to set the default location /User/home/.conda/pkgs/ to read-only in order to prevent conda from using this location.

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