AMBARI-13101. RU multiple component restart failures during rolling upgrade on Debian7 (aonishuk)

ambari-common/src/main/python/resource_management/libraries/functions/conf_select.py

@@ -326,5 +326,5 @@ def create_config_links(stack_id, stack_version):
           select(args[0], k, stack_version)
         except Exception, err:
           # don't ruin someone's day
-          Logger.logger.exception("'conf-select set' failed to link '{k}'. Error: {0}".format(k, str(err)))
+          Logger.logger.exception("'conf-select set' failed to link '{0}'. Error: {1}".format(k, str(err)))
 

ambari-server/src/main/resources/custom_actions/scripts/install_packages.py

@@ -155,6 +155,7 @@ class InstallPackages(Script):
       else:
         num_errors += 1
     except Exception, err:
+      num_errors += 1
       Logger.logger.exception("Could not install packages. Error: {0}".format(str(err)))
 
     # Provide correct exit code