Red Hat Bugzilla – Bug 1002449
[abrt] yum-3.4.3-54.fc18: auto-update-debuginfo.py:96:_write_cached:OSError: [Errno 2] No such file or directory
Last modified: 2014-02-05 18:13:57 EST
Description of problem:
I print in root console yum install memch and press tab. console freezes, than I run another root console and print there yum list available|grep memcheck. After several seconds gnome-abrt say than yum crahses
Version-Release number of selected component:
cmdline: /usr/bin/python -t /usr/share/yum-cli/completion-helper.py -d 0 -C list available memch
runlevel: N 5
auto-update-debuginfo.py:96:_write_cached:OSError: [Errno 2] No such file or directory
Traceback (most recent call last):
File "/usr/share/yum-cli/completion-helper.py", line 89, in <module>
File "/usr/share/yum-cli/completion-helper.py", line 83, in main
File "/usr/share/yum-cli/cli.py", line 485, in doCommands
return self.yum_cli_commands[self.basecmd].doCommand(self, self.basecmd, self.extcmds)
File "/usr/share/yum-cli/completion-helper.py", line 45, in doCommand
File "/usr/lib/python2.7/site-packages/yum/__init__.py", line 2746, in doPackageLists
avail = self.pkgSack.returnNewestByNameArch(patterns=patterns,
File "/usr/lib/python2.7/site-packages/yum/__init__.py", line 1014, in <lambda>
pkgSack = property(fget=lambda self: self._getSacks(),
File "/usr/lib/python2.7/site-packages/yum/__init__.py", line 780, in _getSacks
File "/usr/lib/python2.7/site-packages/yum/repos.py", line 313, in populateSack
File "/usr/lib/python2.7/site-packages/yum/repos.py", line 114, in doSetup
File "/usr/lib/python2.7/site-packages/yum/plugins.py", line 187, in run
func(conduitcls(self, self.base, conf, **kwargs))
File "/usr/lib/yum-plugins/auto-update-debuginfo.py", line 115, in prereposetup_hook
_write_cached(cfname, rpmdbv, num)
File "/usr/lib/yum-plugins/auto-update-debuginfo.py", line 96, in _write_cached
os.rename(cfname + ".tmp", cfname)
OSError: [Errno 2] No such file or directory
Local variables in innermost frame:
fo: <closed file '/var/lib/yum/plugins/auto-update-debuginfo/num.tmp', mode 'w' at 0x2147780>
Created attachment 791648 [details]
Created attachment 791649 [details]
Thanks, that's a race condition, the 2nd process has overwritten tempfile of the 1st one.. Completion helper deliberately does not lock and uses the root cache readonly- this is fast and mostly safe, and makes tab-completion work even when other yum operation is in progress. But some plugins break.
This one is quite easy to fix, but maybe better solution is to disable all/most plugins in completion-helper..
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