yum-cron (3.4.3-150.el7.noarch on SL7.3) has stopped working for me. There are a bunch of upgrades to be done in sl-fastbugs, but yum-cron bombs out with an error message

Traceback (most recent call last):
  File "/sbin/yum-cron", line 729, in <module>
    main()
  File "/sbin/yum-cron", line 726, in main
    base.updatesCheck()
  File "/sbin/yum-cron", line 649, in updatesCheck
    self.installUpdates(self.opts.update_messages)
  File "/sbin/yum-cron", line 570, in installUpdates
    result, err = self.sigCheckPkg(po)
  File "/usr/lib/python2.7/site-packages/yum/__init__.py", line 2758, in 
sigCheckPkg
    sigresult = rpmUtils.miscutils.checkSig(ts, po.localPkg())
  File "/usr/lib/python2.7/site-packages/rpmUtils/miscutils.py", line 71, in 
checkSig
fdno = os.open(package, os.O_RDONLY) OSError: [Errno 2] No such file or directory: '/var/cache/yum/x86_64/7/sl-fastbugs/packages/lvm2-libs-2.02.166-1.el7_3.5.x86_64.rpm'

/var/cache/yum/x86_64/7/sl-fastbugs/packages is in fact empty, possibly as a result of a 'yum clean all'.

It is nothing to do with lvm2-libs specifically. I can upgrade that with yum from the command line. yum-cron then gives the same error on the next package.

I haven't knowingly changed anything away from the default yum or yum-cron configuration. I do notice 'keepcache=0' in /etc/yum.conf, while the man page says that the default is 'keepcache=1'.

Any ideas on what could be making yum-cron insist on those cache files when yum itself doesn't, and how to change that?

Stephen Isard

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