Revision c9e99213

b/snf-cyclades-app/synnefo/logic/backend_allocator.py
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        # Get available backends
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        available_backends = get_available_backends(flavor)
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        # Refresh backends, if needed


  		





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        refresh_backends_stats(available_backends)


  		





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        if not available_backends:


  		





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            return None


  		





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  ......




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    backends = Backend.objects.select_for_update().filter(offline=False,


  		





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                                                          drained=False)


  		





  
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    # Update the disk_templates if there are empty.


  		





  
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    [backend_mod.update_backend_disk_templates(b)


  		





  
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     for b in backends if not b.disk_templates]


  		





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    backends = filter(lambda b: disk_template in b.disk_templates,


  		





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                      list(backends))


  		





  
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    # Update the backend stats if it is needed


  		





  
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    refresh_backends_stats(backends)


  		





  
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    return backends


  		





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