Mailinglist Archive: opensuse-buildservice (348 mails)

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[opensuse-buildservice] osc co/up hangs and eventually corrupts working copy
  • From: Olaf Hering <olaf@xxxxxxxxx>
  • Date: Mon, 26 Apr 2010 17:16:11 +0200
  • Message-id: <20100426151611.GA32192@xxxxxxxxx>

This weekend I tried to run the following command several times:

osc co --unexpand-link home:duwe:crosstools

The cross-* packages which are linked were downloaded without issues,
but as soon as the master-binutils package is supposed to be downloaded,
osc hangs.
lsof shows that 2MB of binutils-tar.bz2 are downloaded, quickly, but
then osc hangs for many hours (or even days, I havent tried) without
progress nor error messages.

In parallel, I rolled my own via the web interface, which works really
nice. Retreiving packages from remote safes me the slow upload from my
side.

Once I ran the same osc command for my project, I experienced the same
hangs. Most of the time 2MB of a file were downloaded, then osc hung.
If interrupted with ctrl c, osc may eventually be able to continue with
'osc up'. I tried it many times. osc downloads a block of 1048576 or
2097152 bytes, then it stops.
This morning I was finally able to finish a fresh checkout after a few
attempts.


But the thing is: once more packages get added via the webinterface an
'osc up' inside the local working copy will hang as well. If interrupted
it will corrupt the working copy by adding a new incomplete directory.
Several 'osc up' runs will stop with 'directory XY does already exist'.
Removing that XY directory does seldom help.

Is there a way to fix the local working copy from such breakage?
Doing a fresh checkout is appearently no option, as it starts to hang
again.

Perhaps the servers should return some sort of EBUSY right away when
they cant service the 'checkout/update' request. This would prevent the
local corruption and it probably reduces the load on the servers,
because repeated checkout attempts may put even more pressure on them.

I'm using osc 0.125.5 on openSuSE 11.2-x86_64.


Olaf
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