Honestly I haven't bothered digging into ansible source, but here's my results on Fedora 20, same as the OP:
$ ansible --version ansible 1.7.2 # Without valid FQDN entry $ time ansible all -i "localhost," -m setup -c local 0.32s user 0.11s system 2% cpu 20.528 total # With valid FQDN entry $ time ansible all -i "localhost," -m setup -c local 0.26s user 0.08s system 83% cpu 0.399 total I'd call a twenty second speed up considerable. I get the same behavior with devel: $ ansible --version ansible 1.8 (devel e1662422bf) last updated 2014/11/03 12:22:34 (GMT -600) lib/ansible/modules/core: (detached HEAD 7f611468a8) last updated 2014/10/24 11:15:28 (GMT -600) lib/ansible/modules/extras: (detached HEAD a0df36c6ab) last updated 2014/10/24 11:15:31 (GMT -600) v2/ansible/modules/core: (detached HEAD cb69744bce) last updated 2014/10/24 11:15:35 (GMT -600) v2/ansible/modules/extras: (detached HEAD 8a4f07eecd) last updated 2014/10/24 11:15:38 (GMT -600) configured module search path = None # Without valid FQDN entry $ time ansible all -i "localhost," -m setup -c local 0.37s user 0.14s system 2% cpu 20.614 total # Without valid FQDN entry $ time python -c 'import socket; socket.gethostname()' python -c 'import socket; socket.gethostname()' 0.01s user 0.01s system 97% cpu 0.021 total This last one implies that the socket.gethostname() is not to blame. On Mon, Nov 3, 2014 at 12:10 PM, Michael DeHaan <[email protected]> wrote: > "Do you have a valid FQDN entry in /etc/hosts? Without that, the setup > module slows down considerably." > > Assume you're referring to the one socket.gethostname() equivalent as a > DNS hit? > > I'm not sure it would be *considerably*... though interested in any timing > info you might have. > > (May imply DNS issues?) > > > > > On Mon, Nov 3, 2014 at 10:04 AM, Scott Sturdivant < > [email protected]> wrote: > >> Do you have a valid FQDN entry in /etc/hosts? Without that, the setup >> module slows down considerably. >> >> On Mon, Nov 3, 2014 at 7:24 AM, Michael DeHaan <[email protected]> >> wrote: >> >>> Hmm, that's quite curious and not something I've heard reported much. >>> >>> There's also not much logic to get stuck in a loop in there. >>> >>> If you have Python skills, using "./hacking/test-module" from a checkout >>> on that machine would allow inserting some debug that could help isolate >>> why it may be taking longer, if it's in fact the setup module that is >>> spending the time. >>> >>> >>> >>> >>> >>> On Sun, Nov 2, 2014 at 7:24 AM, pixel fairy <[email protected]> >>> wrote: >>> >>>> the setup module (and any playbooks) takes an extra 2 min for a fedora >>>> 20 based vm. other ansible modules, at least command(date) and yum (upgrade >>>> all), take less than a second, on an up to date machine. >>>> >>>> tried from os x 10.10 (homebrew) and ubuntu 14.04, both running ansible >>>> 1.7.2. heres, the -vvvv >>>> >>>> <akaran> ESTABLISH CONNECTION FOR USER: pixel >>>> <akaran> REMOTE_MODULE setup >>>> <akaran> EXEC ['ssh', '-C', '-tt', '-vvv', '-o', 'ControlMaster=auto', >>>> '-o', 'ControlPersist=60s', '-o', >>>> 'ControlPath=/Users/pixel/.ansible/cp/ansible-ssh-%h-%p-%r', '-o', >>>> 'KbdInteractiveAuthentication=no', '-o', >>>> 'PreferredAuthentications=gssapi-with-mic,gssapi-keyex,hostbased,publickey', >>>> '-o', 'PasswordAuthentication=no', '-o', 'ConnectTimeout=10', 'akaran', >>>> "/bin/sh -c 'mkdir -p >>>> $HOME/.ansible/tmp/ansible-tmp-1414929572.02-34091227529968 && chmod a+rx >>>> $HOME/.ansible/tmp/ansible-tmp-1414929572.02-34091227529968 && echo >>>> $HOME/.ansible/tmp/ansible-tmp-1414929572.02-34091227529968'"] >>>> <akaran> PUT /var/folders/2v/w9x69ytx017ckmpz4hmjn5qh0000gn/T/tmpPQYuj0 >>>> TO /home/pixel/.ansible/tmp/ansible-tmp-1414929572.02-34091227529968/setup >>>> <akaran> EXEC ['ssh', '-C', '-tt', '-vvv', '-o', 'ControlMaster=auto', >>>> '-o', 'ControlPersist=60s', '-o', >>>> 'ControlPath=/Users/pixel/.ansible/cp/ansible-ssh-%h-%p-%r', '-o', >>>> 'KbdInteractiveAuthentication=no', '-o', >>>> 'PreferredAuthentications=gssapi-with-mic,gssapi-keyex,hostbased,publickey', >>>> '-o', 'PasswordAuthentication=no', '-o', 'ConnectTimeout=10', 'akaran', >>>> u"/bin/sh -c 'LANG=en_US.UTF-8 LC_CTYPE=en_US.UTF-8 /usr/bin/python >>>> /home/pixel/.ansible/tmp/ansible-tmp-1414929572.02-34091227529968/setup; rm >>>> -rf /home/pixel/.ansible/tmp/ansible-tmp-1414929572.02-34091227529968/ >>>> >/dev/null 2>&1'"] >>>> ... facts ... >>>> >>>> >>>> >>>> >>>> -- >>>> You received this message because you are subscribed to the Google >>>> Groups "Ansible Project" group. >>>> To unsubscribe from this group and stop receiving emails from it, send >>>> an email to [email protected]. >>>> To post to this group, send email to [email protected]. >>>> To view this discussion on the web visit >>>> https://groups.google.com/d/msgid/ansible-project/7bf63dde-3d2a-4562-90b1-5a950800326d%40googlegroups.com >>>> <https://groups.google.com/d/msgid/ansible-project/7bf63dde-3d2a-4562-90b1-5a950800326d%40googlegroups.com?utm_medium=email&utm_source=footer> >>>> . >>>> For more options, visit https://groups.google.com/d/optout. >>>> >>> >>> -- >>> You received this message because you are subscribed to the Google >>> Groups "Ansible Project" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to [email protected]. >>> To post to this group, send email to [email protected]. >>> To view this discussion on the web visit >>> https://groups.google.com/d/msgid/ansible-project/CA%2BnsWgxXbk4GNt8Bj-uwLak7A%2ByEGWN1JD-SePXZSD8M-rynSw%40mail.gmail.com >>> <https://groups.google.com/d/msgid/ansible-project/CA%2BnsWgxXbk4GNt8Bj-uwLak7A%2ByEGWN1JD-SePXZSD8M-rynSw%40mail.gmail.com?utm_medium=email&utm_source=footer> >>> . >>> >>> For more options, visit https://groups.google.com/d/optout. >>> >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Ansible Project" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> To post to this group, send email to [email protected]. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/ansible-project/CAPcsqx%3DEMiY5Rgnxwa-S_AWHB5uY%2BtaWy54p1iYsb8Kny7PTpg%40mail.gmail.com >> <https://groups.google.com/d/msgid/ansible-project/CAPcsqx%3DEMiY5Rgnxwa-S_AWHB5uY%2BtaWy54p1iYsb8Kny7PTpg%40mail.gmail.com?utm_medium=email&utm_source=footer> >> . >> >> For more options, visit https://groups.google.com/d/optout. >> > > -- > You received this message because you are subscribed to the Google Groups > "Ansible Project" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/ansible-project/CA%2BnsWgx26bAEA0-uWDP-XrpUZjTHLkJGuAnCZMq7uFxViVB_ag%40mail.gmail.com > <https://groups.google.com/d/msgid/ansible-project/CA%2BnsWgx26bAEA0-uWDP-XrpUZjTHLkJGuAnCZMq7uFxViVB_ag%40mail.gmail.com?utm_medium=email&utm_source=footer> > . > > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "Ansible Project" group. 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