https://bugzilla.redhat.com/show_bug.cgi?id=1210472

            Bug ID: 1210472
           Summary: too many open files
           Product: Fedora EPEL
           Version: epel7
         Component: docker-io
          Assignee: [email protected]
          Reporter: [email protected]
        QA Contact: [email protected]
                CC: [email protected], [email protected],
                    [email protected], [email protected],
                    [email protected], [email protected],
                    [email protected], [email protected],
                    [email protected], [email protected],
                    [email protected], [email protected], [email protected],
                    [email protected]



Description of problem:

After awhile of running docker commands, particularly as part of a "watch"
statement, I state to get too many pipe2 errors.

Version-Release number of selected component (if applicable):


How reproducible:
Unknown.  This has happened to me 3 times so far.

Steps to Reproduce:
1. Run a docker command in a watch loop, such as:  
   watch -n 30 docker run -t -i --rm fedora date
2.
3.

Actual results:

Eventually one starts to see output like:

time="2015-04-09T15:25:25-04:00" level="fatal" msg="Post
http:///var/run/docker.sock/v1.16/containers/3543b03f71195ca4522e794e7e0d83d8642b59ceb140d30a9d7fcef760424893/start:
EOF. Are you trying to connect to a TLS-enabled daemon without TLS?" 

If I control-C, run "docker rm $(docker ps -q -a)" there are many instances to
clean-up.   Afterwards, if I try running a new docker command without the watch
part I get the error:

FATA[0000] Error response from daemon: Cannot start container
6252aa7de7f1217f654d1551c56e9d544eb9a588446996e0ae473458b2bf1251: pipe2: too
many open files 

Expected results:

Should just keep working.

Additional info:

The command I'm actually using is an sqlplus script, but I thought an example
with date might be much easier to use to reproduce with.

Doing a "service docker restart" resolves the issue, but it also aborts all my
running docker containers...

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