[MacPorts] #70556: "base" seemingly locking up for sometimes very long

[MacPorts]

#70556: "base" seemingly locking up for sometimes very long
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  Reporter:  RJVB         |      Owner:  (none)
      Type:  enhancement  |     Status:  new
  Priority:  Normal       |  Milestone:
 Component:  base         |    Version:
Resolution:               |   Keywords:
      Port:               |
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Comment (by barracuda156):

 Not too long ago with some earlier MacPorts version I had frequent
 “freeze-like” conditions when port command apparently did nothing and
 could not be quit normally: typically that happened when I ran `sudo port
 upgrade` for a port which version was not higher than installed one (i.e.
 `-force` was needed, which I forgot to add), but also after normal
 successful updates of some ports.
 Then the issue resolved, and I probably never had it, until 2.10.0. Today
 I had a similar freeze, and had to restart the machine.

 While admittedly I have many ports installed on the Quad, so indexing is
 expected not to be instantaneous, it feels like some change after 2.9.3
 made it worse.
 (This is a one-day experience, so take it FWIW. No strict measurements and
 repeated tests we done.)

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Ticket URL: <https://trac.macports.org/ticket/70556#comment:2>
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