diff --git a/dhp-workflows/dhp-stats-update/src/main/resources/eu/dnetlib/dhp/oa/graph/stats/oozie_app/copyDataToImpalaCluster.sh b/dhp-workflows/dhp-stats-update/src/main/resources/eu/dnetlib/dhp/oa/graph/stats/oozie_app/copyDataToImpalaCluster.sh
index a99a789658..4ff236d072 100644
--- a/dhp-workflows/dhp-stats-update/src/main/resources/eu/dnetlib/dhp/oa/graph/stats/oozie_app/copyDataToImpalaCluster.sh
+++ b/dhp-workflows/dhp-stats-update/src/main/resources/eu/dnetlib/dhp/oa/graph/stats/oozie_app/copyDataToImpalaCluster.sh
@@ -22,28 +22,28 @@ function copydb() {
   hdfs dfs -conf /etc/impala_cluster/hdfs-site.xml -chmod -R 777 /tmp/$FILE/${db}.db
 
   # create the databases
-  impala-shell -i impala-cluster-dn1.openaire.eu -q "drop database if exists ${db} cascade";
-  impala-shell -i impala-cluster-dn1.openaire.eu -q "create database ${db}";
+  impala-shell --user $HADOOP_USER_NAME -i impala-cluster-dn1.openaire.eu -q "drop database if exists ${db} cascade";
+  impala-shell --user $HADOOP_USER_NAME -i impala-cluster-dn1.openaire.eu -q "create database ${db}";
 
-  impala-shell -q "INVALIDATE METADATA"
+  impala-shell --user $HADOOP_USER_NAME -q "INVALIDATE METADATA"
   echo "creating schema for ${db}"
-  for i in `impala-shell -d ${db} --delimited  -q "show tables"`;
+  for i in `impala-shell --user $HADOOP_USER_NAME -d ${db} --delimited  -q "show tables"`;
     do
-      impala-shell -d ${db} --delimited  -q "show create table $i";
-    done |  sed 's/"$/;/' | sed 's/^"//' | sed 's/[[:space:]]\date[[:space:]]/`date`/g' | impala-shell -i impala-cluster-dn1.openaire.eu -c -f -
+      impala-shell --user $HADOOP_USER_NAME -d ${db} --delimited  -q "show create table $i";
+    done |  sed 's/"$/;/' | sed 's/^"//' | sed 's/[[:space:]]\date[[:space:]]/`date`/g' | impala-shell --user $HADOOP_USER_NAME -i impala-cluster-dn1.openaire.eu -c -f -
 
   # run the same command twice because we may have failures in the first run (due to views pointing to the same db)
-  for i in `impala-shell -d ${db} --delimited  -q "show tables"`;
+  for i in `impala-shell --user $HADOOP_USER_NAME -d ${db} --delimited  -q "show tables"`;
     do
-      impala-shell -d ${db} --delimited  -q "show create table $i";
-    done |  sed 's/"$/;/' | sed 's/^"//' | sed 's/[[:space:]]\date[[:space:]]/`date`/g' | impala-shell -i impala-cluster-dn1.openaire.eu -c -f -
+      impala-shell --user $HADOOP_USER_NAME -d ${db} --delimited  -q "show create table $i";
+    done |  sed 's/"$/;/' | sed 's/^"//' | sed 's/[[:space:]]\date[[:space:]]/`date`/g' | impala-shell --user $HADOOP_USER_NAME -i impala-cluster-dn1.openaire.eu -c -f -
 
   # load the data from /tmp in the respective tables
   echo "copying data in tables and computing stats"
-  for i in `impala-shell -i impala-cluster-dn1.openaire.eu -d ${db} --delimited  -q "show tables"`;
+  for i in `impala-shell --user $HADOOP_USER_NAME -i impala-cluster-dn1.openaire.eu -d ${db} --delimited  -q "show tables"`;
       do
-        impala-shell -i impala-cluster-dn1.openaire.eu -d ${db} -q "load data inpath '/tmp/$FILE/${db}.db/$i' into table $i";
-        impala-shell -i impala-cluster-dn1.openaire.eu -d ${db} -q "compute stats $i";
+        impala-shell --user $HADOOP_USER_NAME -i impala-cluster-dn1.openaire.eu -d ${db} -q "load data inpath '/tmp/$FILE/${db}.db/$i' into table $i";
+        impala-shell --user $HADOOP_USER_NAME -i impala-cluster-dn1.openaire.eu -d ${db} -q "compute stats $i";
       done
 
   # deleting the remaining directory from hdfs