Set retries = 1

pegasus.properties

@@ -2,6 +2,7 @@ pegasus.register = false
 pegasus.data.configuration = sharedfs
 pegasus.stagein.clusters = 1
 pegasus.stageout.clusters = 1
+dagman.retry = 1
 
 # For now we use the fixed storage mapper instead of the output site in the site catalog
 # because the default mapper strips trailing /, which does not work for output dirs