Performing 100 rm in parallel for rados, this should not be painful as those...

Performing 100 rm in parallel for rados, this should not be painful as those synchronous rm are mostly waiting

continuousintegration/docker/ctafrontend/cc7/opt/run/bin/init.sh

@@ -29,7 +29,7 @@ if [ "$KEEP_OBJECTSTORE" == "0" ]; then
   else
     if [[ $(rados -p $OBJECTSTOREPOOL --id $OBJECTSTOREID --namespace $OBJECTSTORENAMESPACE ls | wc -l) -gt 0 ]]; then
       echo "Rados objectstore ${OBJECTSTOREURL} is not empty: deleting content"
-      rados -p $OBJECTSTOREPOOL --id $OBJECTSTOREID --namespace $OBJECTSTORENAMESPACE ls | xargs -itoto rados -p $OBJECTSTOREPOOL --id $OBJECTSTOREID --namespace $OBJECTSTORENAMESPACE rm toto
+      rados -p $OBJECTSTOREPOOL --id $OBJECTSTOREID --namespace $OBJECTSTORENAMESPACE ls | xargs -itoto -P 100 rados -p $OBJECTSTOREPOOL --id $OBJECTSTOREID --namespace $OBJECTSTORENAMESPACE rm toto
     fi
     cta-objectstore-initialize $OBJECTSTOREURL
     echo "Rados objectstore ${OBJECTSTOREURL} content:"