Bazel: How to install bazel on NFS

[GaofengCheng]

Please provide the following information. The more we know about your system and use case, the more easily and likely we can help.

Description of the problem / feature request / question:

I want to compile the tensorflow from source code, so I install the Bazel. My $HOME is on NFS, after install the Bazel using
$chmod +x bazel-version-installer-os.sh
$ ./bazel-version-installer-os.sh --user
when I type bazel, the warning show:
WARNING: Output base '/home/usrname/.cache/bazel/_bazel_chenggaofeng/75c879a7665c1f6bb168362b3b0eb86b' is on NFS. This may lead to surprising failures and undetermined behavior. [bazel release 0.4.0]
and the subsequent compile of tensroflow also failed.

If possible, provide a minimal example to reproduce the problem:

Environment info

• Operating System: Linux gs07 3.16.0-4-amd64 #1 SMP Debian 3.16.7-ckt25-2+deb8u3 (2016-07-02) x86_64 GNU/Linux

• Bazel version (output of bazel info release): bazel release 0.4.0

• If bazel info release returns "development version" or "(@non-git)", please tell us what source tree you compiled Bazel from; git commit hash is appreciated (git rev-parse HEAD):

Have you found anything relevant by searching the web? (e.g. GitHub issues, email threads in the [email protected] archive)

Anything else, information or logs or outputs that would be helpful?

(If they are large, please upload as attachment or provide link).

[laszlocsomor]

Please don't install Bazel on NFS, as the warning says it leads to undetermined behavior. Use the --output_user_root flag to change the location of Bazel's installation tree.
I'll add a FAQ entry about this on bazel.build

[laszlocsomor]

Here's the flag's documentation: --output_user_root

[fvisin]

In my case setting TEST_TMPDIR as suggested in https://github.com/bazelbuild/bazel/issues/1970#issuecomment-282177022 did the trick.