8a6079d If rhmsg fails with a RuntimeError, then retry.

Authored and Committed by ralph 5 years ago
    If rhmsg fails with a RuntimeError, then retry.
    
    I saw this in the logs during the last possible part of an event, causing the
    whole event to fail.  This will at least let us ride out 2-minute UMB blips.
    
        
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