[MacPorts] #60509: Upgrading ports sometimes breaks internet connection

[MacPorts]

#60509: Upgrading ports sometimes breaks internet connection
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  Reporter:  iEFdev  |      Owner:  (none)
      Type:  defect  |     Status:  new
  Priority:  Normal  |  Milestone:
 Component:  base    |    Version:  2.6.2
Resolution:          |   Keywords:
      Port:          |
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Comment (by ryandesign):

 Replying to [comment:6 ryandesign]:
 > It seems more likely to me that MacPorts is overtaxing the OS by
 launching so many simultaneous processes and thereby using up so many file
 descriptors simultaneously.

 It's possible that a different problem we see on our Snow Leopard x86_64
 buildbot worker could also be caused by a lack of file descriptors; see
 #59691. So if we could find out (perhaps with some additional logging as
 suggested in that ticket) whether we are just gradually running out of
 file descriptors, and figure out how to fix that, we could solve two
 problems at once.

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Ticket URL: <https://trac.macports.org/ticket/60509#comment:25>
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