salt: [BUG] [v3000] [vRC1 Sodium] [v3001] slsutil.renderer when called through salt-call not exiting after run

Description Running salt-call slsutil.renderer is causing a freeze after the output.

Setup install salt and render a file with saltutil.renderer salt-call slsutil.renderer watch it stick and have to hit ctrl+c to get a prompt back.

Steps to Reproduce the behavior salt-call slsutil.renderer salt://test/init.sls file doesn’t need to exist.

Expected behavior salt-call exists after modules return.

Screenshots If applicable, add screenshots to help explain your problem.

Versions Report

salt-call test.versions

local:
    Salt Version:
               Salt: 3001rc1

    Dependency Versions:
               cffi: Not Installed
           cherrypy: 8.9.1
           dateutil: 2.7.3
          docker-py: Not Installed
              gitdb: 2.0.6
          gitpython: 3.0.7
             Jinja2: 2.10.1
            libgit2: 0.28.3
           M2Crypto: Not Installed
               Mako: Not Installed
       msgpack-pure: Not Installed
     msgpack-python: 0.6.2
       mysql-python: Not Installed
          pycparser: Not Installed
           pycrypto: 2.6.1
       pycryptodome: 3.6.1
             pygit2: 1.0.3
             Python: 3.8.2 (default, Apr 27 2020, 15:53:34)
       python-gnupg: 0.4.5
             PyYAML: 5.3.1
              PyZMQ: 18.1.1
              smmap: 2.0.5
            timelib: Not Installed
            Tornado: 4.5.3
                ZMQ: 4.3.2

    System Versions:
               dist: ubuntu 20.04 focal
             locale: utf-8
            machine: x86_64
            release: 5.4.0-29-generic
             system: Linux
            version: Ubuntu 20.04 focal

About this issue

Original URL
State: closed
Created 4 years ago
Comments: 27 (17 by maintainers)

Most upvoted comments

Definitely something screwy going on here.

Thanks to @xcorvis I was finally able to repro this:

Running salt-call with strace -y, we get this:

poll([{fd=10<anon_inode:[eventfd]>, events=POLLIN}], 1, -1

That’s where it hangs indefinitely. From the poll manpage we can see:

poll(struct pollfd fds[], nfds_t nfds, int timeout);
...
If the value of
     timeout is -1, the poll blocks indefinitely.

So whatever we’re polling for here, we’re doing it for-ev-errrr. I’ll post updates as I find them.

waynew on Jul 8, 2020

@whytewolf I believe I have the fix for your hang. It works for my environment. I would appreciate it if you tested it in your environment to make sure it works for you so you don’t need to wait for another release.

cmcmarrow on Sep 25, 2020