Ubuntu 20.04 fixes:
- fixes sshd test
- speeds up examples/{treeping64,tree1024}.py
- debugging hacks/output for testLinkChange
- removes cfs from examples/popen.py
- improves nat in nodelib (netplan fixes?)
- makes some tests executable
- waits for switches to connect in tests to
avoid race conditions
-- adds mn -w option and wait CLI command
Changes:
- REMOVES default "-v" argument for Controller()
and adds verbose(=False) option; avoiding logging
makes it faster
- CHANGES waitConnected to wait for 5 seconds
as documented; we may wish to implement an argument
to -w to set this timeout
Issues?
- There may still be an issue with the ovs-netplan-clean
service causing the boot to hang ;-(
* Install correctly on Ubuntu 20.04
Main changes are to avoid pulling in python2 by mistake, and then to make sure to install only python3 packages.
Also: Add net-tools which is needed to get ifconfig on newer Ubuntu releases.
(admin note: there are still a couple of remaining 20.04 issues but this is helpful)
Ubuntu 16.04 no longer includes a 'python' executable.
If none of {$PYTHON,python,python2,python3} are usable, we advise
the user to either set PYTHON or install a usable python.
Hi, I'm trying to package Mininet for Guix which doesn't symlink cc to gcc and this would make it easier to package, as well as configure it for alternative compilers.
change isShellBuiltin to have each builtin as a different token in a set and lookup cmd to be an element of the set instead of a sequence of characters in a string (tested only on Python 3.6.7). Corrected according to @lantz comments.
This can happen when adjusting a tmux pane running mininet cli. The
process will receive SIGWINCH causing the poll() call to raise
select.error
Below is a session dump with strace
09:55:52.498106 poll([{fd=0, events=POLLIN}, {fd=28, events=POLLIN}], 2, -1) = ? ERESTART_RESTARTBLOCK (Interrupted by signal)
09:55:52.606734 --- SIGWINCH {si_signo=SIGWINCH, si_code=SI_KERNEL} ---
09:55:52.606770 rt_sigreturn({mask=[]}) = -1 EINTR (Interrupted system call)
Traceback (most recent call last):
File "examples/topofac.py", line 527, in <module>
run()
File "examples/topofac.py", line 522, in run
CLI( net )
File "/home/yunion/git-repo/mininet/mininet/cli.py", line 68, in __init__
self.run()
File "/home/yunion/git-repo/mininet/mininet/cli.py", line 103, in run
self.cmdloop()
File "/home/yunion/.usr/lib/python2.7/cmd.py", line 142, in cmdloop
stop = self.onecmd(line)
File "/home/yunion/.usr/lib/python2.7/cmd.py", line 220, in onecmd
return self.default(line)
File "/home/yunion/git-repo/mininet/mininet/cli.py", line 422, in default
self.waitForNode( node )
File "/home/yunion/git-repo/mininet/mininet/cli.py", line 440, in waitForNode
bothPoller.poll()
select.error: (4, 'Interrupted system call')
09:55:52.622076 rt_sigaction(SIGINT, {SIG_DFL, [], SA_RESTORER, 0x7ff9a9b936d0}, {0x7ff9a9ef2230, [], SA_RESTORER, 0x7ff9a9b936d0}, 8) = 0
09:55:52.631905 +++ exited with 1 +++
lantz
Jeff R. Allen
julian.filter
Shan Sikdar
Tim Gates
Mathieu Jadin
Ben Frankel
Stephan Reiter
rain
Damien Saucez
None
Yousong Zhou