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No space left on device - Failed to watch ... #229

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greyblake opened this issue Jan 22, 2012 · 18 comments
Closed

No space left on device - Failed to watch ... #229

greyblake opened this issue Jan 22, 2012 · 18 comments

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@greyblake
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Guardfile:

guard 'rspec', :version => 2, :cli => "--color --format nested" do
  watch(%r{^spec/.+_spec\.rb})
  watch(%r{^lib/(.+)\.rb})     { |m| "spec/#{m[1]}_spec.rb" }
end

Gemfile

group :development do
  gem 'guard'
  gem 'libnotify'
  gem 'guard-rspec'
  gem 'rb-readline'
end

Environment

  • Linux 2.6.32-5-amd64
  • ruby 1.8.7 (2011-06-30 patchlevel 352)

Error

When I run guard start I see libnotify message with report and then guard crashes with next error:

//home/blake/.rvm/gems/ruby-1.8.7-p352@project/gems/guard-1.0.0/lib/vendor/linux/lib/rb-inotify/watcher.rb:80:in `initialize': No space left on device - Failed to watch "/home/blake/dev/my/project_child/.git/objects/78": The user limit on the total number of inotify watches was reached or the kernel failed to allocate a needed resource. (Errno::ENOSPC)
    from /home/blake/.rvm/gems/ruby-1.8.7-p352@project/gems/guard-1.0.0/lib/vendor/linux/lib/rb-inotify/notifier.rb:190:in `new'
    from /home/blake/.rvm/gems/ruby-1.8.7-p352@project/gems/guard-1.0.0/lib/vendor/linux/lib/rb-inotify/notifier.rb:190:in `watch'
    from /home/blake/.rvm/gems/ruby-1.8.7-p352@project/gems/guard-1.0.0/lib/vendor/linux/lib/rb-inotify/notifier.rb:199:in `watch'
    from /home/blake/.rvm/gems/ruby-1.8.7-p352@project/gems/guard-1.0.0/lib/vendor/linux/lib/rb-inotify/notifier.rb:195:in `watch'
    from /home/blake/.rvm/gems/ruby-1.8.7-p352@project/gems/guard-1.0.0/lib/vendor/linux/lib/rb-inotify/notifier.rb:192:in `each'
    from /home/blake/.rvm/gems/ruby-1.8.7-p352@project/gems/guard-1.0.0/lib/vendor/linux/lib/rb-inotify/notifier.rb:192:in `watch'
    from /home/blake/.rvm/gems/ruby-1.8.7-p352@project/gems/guard-1.0.0/lib/vendor/linux/lib/rb-inotify/notifier.rb:195:in `watch'
    from /home/blake/.rvm/gems/ruby-1.8.7-p352@project/gems/guard-1.0.0/lib/vendor/linux/lib/rb-inotify/notifier.rb:192:in `each'
    from /home/blake/.rvm/gems/ruby-1.8.7-p352@project/gems/guard-1.0.0/lib/vendor/linux/lib/rb-inotify/notifier.rb:192:in `watch'
    from /home/blake/.rvm/gems/ruby-1.8.7-p352@project/gems/guard-1.0.0/lib/vendor/linux/lib/rb-inotify/notifier.rb:195:in `watch'
    from /home/blake/.rvm/gems/ruby-1.8.7-p352@project/gems/guard-1.0.0/lib/vendor/linux/lib/rb-inotify/notifier.rb:192:in `each'
    from /home/blake/.rvm/gems/ruby-1.8.7-p352@project/gems/guard-1.0.0/lib/vendor/linux/lib/rb-inotify/notifier.rb:192:in `watch'
    from /home/blake/.rvm/gems/ruby-1.8.7-p352@project/gems/guard-1.0.0/lib/guard/listeners/linux.rb:58:in `watch'
    from /home/blake/.rvm/gems/ruby-1.8.7-p352@project/gems/guard-1.0.0/lib/guard/listener.rb:100:in `start'
    from /home/blake/.rvm/gems/ruby-1.8.7-p352@project/gems/guard-1.0.0/lib/guard/listeners/linux.rb:20:in `start'
    from /home/blake/.rvm/gems/ruby-1.8.7-p352@project/gems/guard-1.0.0/lib/guard.rb:203:in `start'
    from /home/blake/.rvm/gems/ruby-1.8.7-p352@project/gems/guard-1.0.0/lib/guard/cli.rb:75:in `start'
    from /home/blake/.rvm/gems/ruby-1.8.7-p352@project/gems/thor-0.14.6/lib/thor/task.rb:22:in `send'
    from /home/blake/.rvm/gems/ruby-1.8.7-p352@project/gems/thor-0.14.6/lib/thor/task.rb:22:in `run'
    from /home/blake/.rvm/gems/ruby-1.8.7-p352@project/gems/thor-0.14.6/lib/thor/invocation.rb:118:in `invoke_task'
    from /home/blake/.rvm/gems/ruby-1.8.7-p352@project/gems/thor-0.14.6/lib/thor.rb:263:in `dispatch'
    from /home/blake/.rvm/gems/ruby-1.8.7-p352@project/gems/thor-0.14.6/lib/thor/base.rb:389:in `start'
    from /home/blake/.rvm/gems/ruby-1.8.7-p352@project/gems/guard-1.0.0/bin/guard:6
    from /home/blake/.rvm/gems/ruby-1.8.7-p352@project/bin/guard:19:in `load'
    from /home/blake/.rvm/gems/ruby-1.8.7-p352@project/bin/guard:19home/blake/.rvm/gems/ruby-1.8.7-p352@project/gems/guard-1.0.0/lib/vendor/linux/lib/rb-inotify/watcher.rb:80:in `initialize': No space left on device - Failed to watch "/home/blake/dev/my/project_child/.git/objects/78": The user limit on the total number of inotify watches was reached or the kernel failed to allocate a needed resource. (Errno::ENOSPC)
    from /home/blake/.rvm/gems/ruby-1.8.7-p352@project/gems/guard-1.0.0/lib/vendor/linux/lib/rb-inotify/notifier.rb:190:in `new'
    from /home/blake/.rvm/gems/ruby-1.8.7-p352@project/gems/guard-1.0.0/lib/vendor/linux/lib/rb-inotify/notifier.rb:190:in `watch'
    from /home/blake/.rvm/gems/ruby-1.8.7-p352@project/gems/guard-1.0.0/lib/vendor/linux/lib/rb-inotify/notifier.rb:199:in `watch'
    from /home/blake/.rvm/gems/ruby-1.8.7-p352@project/gems/guard-1.0.0/lib/vendor/linux/lib/rb-inotify/notifier.rb:195:in `watch'
    from /home/blake/.rvm/gems/ruby-1.8.7-p352@project/gems/guard-1.0.0/lib/vendor/linux/lib/rb-inotify/notifier.rb:192:in `each'
    from /home/blake/.rvm/gems/ruby-1.8.7-p352@project/gems/guard-1.0.0/lib/vendor/linux/lib/rb-inotify/notifier.rb:192:in `watch'
    from /home/blake/.rvm/gems/ruby-1.8.7-p352@project/gems/guard-1.0.0/lib/vendor/linux/lib/rb-inotify/notifier.rb:195:in `watch'
    from /home/blake/.rvm/gems/ruby-1.8.7-p352@project/gems/guard-1.0.0/lib/vendor/linux/lib/rb-inotify/notifier.rb:192:in `each'
    from /home/blake/.rvm/gems/ruby-1.8.7-p352@project/gems/guard-1.0.0/lib/vendor/linux/lib/rb-inotify/notifier.rb:192:in `watch'
    from /home/blake/.rvm/gems/ruby-1.8.7-p352@project/gems/guard-1.0.0/lib/vendor/linux/lib/rb-inotify/notifier.rb:195:in `watch'
    from /home/blake/.rvm/gems/ruby-1.8.7-p352@project/gems/guard-1.0.0/lib/vendor/linux/lib/rb-inotify/notifier.rb:192:in `each'
    from /home/blake/.rvm/gems/ruby-1.8.7-p352@project/gems/guard-1.0.0/lib/vendor/linux/lib/rb-inotify/notifier.rb:192:in `watch'
    from /home/blake/.rvm/gems/ruby-1.8.7-p352@project/gems/guard-1.0.0/lib/guard/listeners/linux.rb:58:in `watch'
    from /home/blake/.rvm/gems/ruby-1.8.7-p352@project/gems/guard-1.0.0/lib/guard/listener.rb:100:in `start'
    from /home/blake/.rvm/gems/ruby-1.8.7-p352@project/gems/guard-1.0.0/lib/guard/listeners/linux.rb:20:in `start'
    from /home/blake/.rvm/gems/ruby-1.8.7-p352@project/gems/guard-1.0.0/lib/guard.rb:203:in `start'
    from /home/blake/.rvm/gems/ruby-1.8.7-p352@project/gems/guard-1.0.0/lib/guard/cli.rb:75:in `start'
    from /home/blake/.rvm/gems/ruby-1.8.7-p352@project/gems/thor-0.14.6/lib/thor/task.rb:22:in `send'
    from /home/blake/.rvm/gems/ruby-1.8.7-p352@project/gems/thor-0.14.6/lib/thor/task.rb:22:in `run'
    from /home/blake/.rvm/gems/ruby-1.8.7-p352@project/gems/thor-0.14.6/lib/thor/invocation.rb:118:in `invoke_task'
    from /home/blake/.rvm/gems/ruby-1.8.7-p352@project/gems/thor-0.14.6/lib/thor.rb:263:in `dispatch'
    from /home/blake/.rvm/gems/ruby-1.8.7-p352@project/gems/thor-0.14.6/lib/thor/base.rb:389:in `start'
    from /home/blake/.rvm/gems/ruby-1.8.7-p352@project/gems/guard-1.0.0/bin/guard:6
    from /home/blake/.rvm/gems/ruby-1.8.7-p352@project/bin/guard:19:in `load'
    from /home/blake/.rvm/gems/ruby-1.8.7-p352@project/bin/guard:19

Does it try to watch git files? Do I miss something?
@thibaudgg
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This could arrive when there's too much files to watch in your folder, you can ignore some path with ignore_paths method (more info about it in the README)

@greyblake
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I've tried to use ignore_paths '.git' it had no effect.

I've got only 93 files in the project:

find . | grep -v '.git'  | wc -l
93

@thibaudgg
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That's weird, try to ask lib notify guys.

@rymai
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rymai commented Jan 22, 2012

Just FYI, .git is already ignored by default: https://github.com/guard/guard/blob/master/lib/guard/listener.rb#L19

@thibaudgg
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Any news?

@greyblake
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Nope.Gonna try to run it on another machine.

@greyblake
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Hm.. At my work, on another PC same project runs well with guard.. On both PCs I use Debian Squeeze.

@thobruk
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thobruk commented Feb 7, 2012

I am having a similar problem with a large directory that I have ignored using ignore_paths. It insists on complaining that it has 'Failed to Watch" some file in the ignored directory.

@thibaudgg
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Paths are only ignored at the Guard level but not with rb-inotify so using ignore_paths isn't useful here. To solve your issue I think we need an ignore_paths option in rb-inotify. @nex3 do you think it would be possible?

@nex3
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nex3 commented Feb 8, 2012

There doesn't seem to be any way to selectively ignore paths in the underlying inotify interface.

@thobruk
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thobruk commented Feb 17, 2012

I took the monster directory out of the project tree for now. Thanks for trying.

@greyblake
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I removed .git directory and it works for me too. But there might be something better:)

@jhirn
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jhirn commented Apr 30, 2012

Try increasing the max_user_watches for inotify. It is default set to 8192. I bumped it to 100k and things are ok.

cat /proc/sys/fs/inotify/max_user_watches

echo 100000|sudo tee /proc/sys/fs/inotify/max_user_watches

To increase max_user_watches at boot, edit /etc/sysctl.conf and add fs.inotify.max_user_watches=100000 or fix fs.inotify.max_user_watches= to 100000.

Don't thank me, thank this guy -> http://blog.sorah.jp/2012/01/24/inotify-limitation

@thibaudgg
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@jhirn Nice link, thanks to share it! /cc @Maher4Ever

@Maher4Ever
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@thibaudgg I think it's indeed a good idea to catch this exception and show a link to a (wiki page?) or something on the Listen repo to help users. Shall we add the first wiki page to Listen ? :)

@jhirn
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jhirn commented May 1, 2012

Do it, but be sure to credit github.com/sorah and not me. =)

@thibaudgg
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@Maher4Ever yeah +1 for a link to our first Listen wiki page!

@greyblake
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@jhirn, good find!
@thibaudgg, thanks for the support.

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@nex3 @rymai @thibaudgg @greyblake @jhirn @Maher4Ever @thobruk