Odd behavior with rubygems

Tim Carey-Smith's Avatar

Tim Carey-Smith

05 Feb, 2010 07:02 PM


At Engine Yard we are seeing odd search results on our EC2 instances when doing gem search/list.
We're unsure if it is a problem with rubygems or our ruby patchlevel.

The script we've been using to reproduce has been:

Some results are as follows:

The odd thing is that the version at the end do not seem to exist.

Other output is:

This is happening for multiple different gems.
Please let us know if you need access to an EC2 instance which you can test on.

Thanks a lot,

  1. Support Staff 1 Posted by Nick Quaranto on 05 Feb, 2010 07:17 PM

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    I tried to look into this yesterday but couldn't come to a conclusion as to what's going on...it seems like the local cache is getting corrupted.

    I tried running some queries on the results, couldn't really determine much:

    >> %w[0.5.2 0.5.1 0.5.0 0.4.8 0.4.7 0.4.6 0.4.5 0.4.3 0.1.0 0.0.39 0.0.38].map { |v| 
    Version.find_all_by_number(v, :include => :rubygem).map { |vv| vv.rubygem.name } 
    }.inject { |arr, n| arr & n }
    => ["dango", "dango_generator"]
  2. Support Staff 2 Posted by Eric Hodel on 07 Feb, 2010 06:12 AM

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    Do the RubyGems tests run fine on your ruby patchlevel?

    Do the RubySpecs for Marshal run fine on your ruby patchlevel?

  3. 3 Posted by Tim Carey-Smith on 07 Feb, 2010 07:43 AM

    Tim Carey-Smith's Avatar

    Rubygems 1.3.5 tests fail
    But it seems to be fixed:
    Rubyspecs for marshal succeed.

  4. 4 Posted by Tim Carey-Smith on 10 Feb, 2010 08:29 PM

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    Hi there,

    Is there anything we can do to help debugging this?
    I just missed you on IRC.

  5. Support Staff 5 Posted by Nick Quaranto on 13 Mar, 2010 06:44 PM

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    Another update with this, I'm hearing reports from multiple sources about it:


    I'm still not sure about narrowing it down, but they're running gem sources -c before installing gems and that seems to help.

    Has this situation changed at all or are the install failures still happening?

  6. 6 Posted by apsoto on 13 Mar, 2010 08:33 PM

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    I've got my chef recipes doing a gem sources -c at the beginning of every run. I have seen reduced errors, but still seeing intermittent failures.

  7. 7 Posted by John Barnette on 17 Nov, 2010 07:23 AM

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    Repinging watchers. Any change in behavior, folks?

  8. 8 Posted by apsoto on 18 Nov, 2010 01:05 AM

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    To answer your question, I have not seen it for a while.

    However, I have been migrating away from Centos to Ubuntu, so that may change this. I have only a handful of Centos servers remaining. In addition, those are much less dependent on gems as well, so I'm running few to no gem installs on Centos lately.

    I have not observed this behavior on Ubuntu where I do have a lot of gem installs occurring.

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