Gal Hammer has posted comments on this change.

Change subject: prepareForShutdown is not called when connection to libvirt is 
broken.
......................................................................


Patch Set 5: (2 inline comments)

....................................................
File vdsm/libvirtconnection.py
Line 86:                         if callable(method) and name[0] != '_':
Line 87:                             setattr(ret, name, wrapMethod(method))
Line 88:                 return ret
Line 89:             except libvirt.libvirtError, e:
Line 90:                 if (e.get_error_domain() in (libvirt.VIR_FROM_REMOTE, 
White space at the end of the line.
Line 91:                                              libvirt.VIR_FROM_RPC,
Line 92:                                              
libvirt.VIR_ERR_NO_CONNECT,
Line 93:                                              
libvirt.VIR_ERR_INVALID_CONN)
Line 94:                     and e.get_error_code() == 
libvirt.VIR_ERR_SYSTEM_ERROR):


Line 90:                 if (e.get_error_domain() in (libvirt.VIR_FROM_REMOTE, 
Line 91:                                              libvirt.VIR_FROM_RPC,
Line 92:                                              
libvirt.VIR_ERR_NO_CONNECT,
Line 93:                                              
libvirt.VIR_ERR_INVALID_CONN)
Line 94:                     and e.get_error_code() == 
libvirt.VIR_ERR_SYSTEM_ERROR):
I would replace the condition order. First check the error_code and only then 
check the error_domain.

It would probably will save less than 1ms on an error :-).
Line 95:                     cif.log.error('connection to libvirt broken. '
Line 96:                                   'taking vdsm down.')
Line 97:                     cif.prepareForShutdown()
Line 98:                 raise


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Gerrit-MessageType: comment
Gerrit-Change-Id: Ic1d9a2cd9bfd7da9118d643d0e50106e5e759590
Gerrit-PatchSet: 5
Gerrit-Project: vdsm
Gerrit-Branch: master
Gerrit-Owner: Michal Skrivanek <[email protected]>
Gerrit-Reviewer: Dan Kenigsberg <[email protected]>
Gerrit-Reviewer: Federico Simoncelli <[email protected]>
Gerrit-Reviewer: Gal Hammer <[email protected]>
Gerrit-Reviewer: Michal Skrivanek <[email protected]>
Gerrit-Reviewer: Peter V. Saveliev <[email protected]>
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