diff --git a/dhp-workflows/dhp-graph-provision/src/main/resources/eu/dnetlib/dhp/oa/provision/oozie_app/workflow.xml b/dhp-workflows/dhp-graph-provision/src/main/resources/eu/dnetlib/dhp/oa/provision/oozie_app/workflow.xml
index faa81ad64..32bf7ce83 100644
--- a/dhp-workflows/dhp-graph-provision/src/main/resources/eu/dnetlib/dhp/oa/provision/oozie_app/workflow.xml
+++ b/dhp-workflows/dhp-graph-provision/src/main/resources/eu/dnetlib/dhp/oa/provision/oozie_app/workflow.xml
@@ -18,8 +18,12 @@
             <description>filter applied reading relations (by relClass)</description>
         </property>
         <property>
-            <name>maxRelations</name>
-            <description>maximum number of relations allowed for a each entity</description>
+            <name>sourceMaxRelations</name>
+            <description>maximum number of relations allowed for a each entity grouping by source</description>
+        </property>
+        <property>
+            <name>targetMaxRelations</name>
+            <description>maximum number of relations allowed for a each entity grouping by target</description>
         </property>
         <property>
             <name>otherDsTypeId</name>
@@ -133,7 +137,8 @@
             </spark-opts>
             <arg>--inputRelationsPath</arg><arg>${inputGraphRootPath}/relation</arg>
             <arg>--outputPath</arg><arg>${workingDir}/relation</arg>
-            <arg>--maxRelations</arg><arg>${maxRelations}</arg>
+            <arg>--sourceMaxRelations</arg><arg>${sourceMaxRelations}</arg>
+            <arg>--targetMaxRelations</arg><arg>${targetMaxRelations}</arg>
             <arg>--relationFilter</arg><arg>${relationFilter}</arg>
             <arg>--relPartitions</arg><arg>5000</arg>
         </spark>
@@ -166,7 +171,7 @@
                 --conf spark.sql.queryExecutionListeners=${spark2SqlQueryExecutionListeners}
                 --conf spark.yarn.historyServer.address=${spark2YarnHistoryServerAddress}
                 --conf spark.eventLog.dir=${nameNode}${spark2EventLogDir}
-                --conf spark.sql.shuffle.partitions=7680
+                --conf spark.sql.shuffle.partitions=15000
                 --conf spark.network.timeout=${sparkNetworkTimeout}
             </spark-opts>
             <arg>--inputRelationsPath</arg><arg>${workingDir}/relation</arg>
@@ -193,7 +198,7 @@
                 --conf spark.sql.queryExecutionListeners=${spark2SqlQueryExecutionListeners}
                 --conf spark.yarn.historyServer.address=${spark2YarnHistoryServerAddress}
                 --conf spark.eventLog.dir=${nameNode}${spark2EventLogDir}
-                --conf spark.sql.shuffle.partitions=3840
+                --conf spark.sql.shuffle.partitions=15000
                 --conf spark.network.timeout=${sparkNetworkTimeout}
             </spark-opts>
             <arg>--inputRelationsPath</arg><arg>${workingDir}/relation</arg>
@@ -220,7 +225,7 @@
                 --conf spark.sql.queryExecutionListeners=${spark2SqlQueryExecutionListeners}
                 --conf spark.yarn.historyServer.address=${spark2YarnHistoryServerAddress}
                 --conf spark.eventLog.dir=${nameNode}${spark2EventLogDir}
-                --conf spark.sql.shuffle.partitions=3840
+                --conf spark.sql.shuffle.partitions=10000
                 --conf spark.network.timeout=${sparkNetworkTimeout}
             </spark-opts>
             <arg>--inputRelationsPath</arg><arg>${workingDir}/relation</arg>
@@ -247,7 +252,7 @@
                 --conf spark.sql.queryExecutionListeners=${spark2SqlQueryExecutionListeners}
                 --conf spark.yarn.historyServer.address=${spark2YarnHistoryServerAddress}
                 --conf spark.eventLog.dir=${nameNode}${spark2EventLogDir}
-                --conf spark.sql.shuffle.partitions=3840
+                --conf spark.sql.shuffle.partitions=5000
                 --conf spark.network.timeout=${sparkNetworkTimeout}
             </spark-opts>
             <arg>--inputRelationsPath</arg><arg>${workingDir}/relation</arg>
@@ -274,7 +279,7 @@
                 --conf spark.sql.queryExecutionListeners=${spark2SqlQueryExecutionListeners}
                 --conf spark.yarn.historyServer.address=${spark2YarnHistoryServerAddress}
                 --conf spark.eventLog.dir=${nameNode}${spark2EventLogDir}
-                --conf spark.sql.shuffle.partitions=3840
+                --conf spark.sql.shuffle.partitions=5000
                 --conf spark.network.timeout=${sparkNetworkTimeout}
             </spark-opts>
             <arg>--inputRelationsPath</arg><arg>${workingDir}/relation</arg>
@@ -301,7 +306,7 @@
                 --conf spark.sql.queryExecutionListeners=${spark2SqlQueryExecutionListeners}
                 --conf spark.yarn.historyServer.address=${spark2YarnHistoryServerAddress}
                 --conf spark.eventLog.dir=${nameNode}${spark2EventLogDir}
-                --conf spark.sql.shuffle.partitions=3840
+                --conf spark.sql.shuffle.partitions=5000
                 --conf spark.network.timeout=${sparkNetworkTimeout}
             </spark-opts>
             <arg>--inputRelationsPath</arg><arg>${workingDir}/relation</arg>
@@ -328,7 +333,7 @@
                 --conf spark.sql.queryExecutionListeners=${spark2SqlQueryExecutionListeners}
                 --conf spark.yarn.historyServer.address=${spark2YarnHistoryServerAddress}
                 --conf spark.eventLog.dir=${nameNode}${spark2EventLogDir}
-                --conf spark.sql.shuffle.partitions=3840
+                --conf spark.sql.shuffle.partitions=5000
                 --conf spark.network.timeout=${sparkNetworkTimeout}
             </spark-opts>
             <arg>--inputRelationsPath</arg><arg>${workingDir}/relation</arg>
@@ -367,7 +372,7 @@
                 --conf spark.sql.queryExecutionListeners=${spark2SqlQueryExecutionListeners}
                 --conf spark.yarn.historyServer.address=${spark2YarnHistoryServerAddress}
                 --conf spark.eventLog.dir=${nameNode}${spark2EventLogDir}
-                --conf spark.sql.shuffle.partitions=15360
+                --conf spark.sql.shuffle.partitions=15000
                 --conf spark.network.timeout=${sparkNetworkTimeout}
             </spark-opts>
             <arg>--inputEntityPath</arg><arg>${inputGraphRootPath}/publication</arg>
@@ -395,7 +400,7 @@
                 --conf spark.sql.queryExecutionListeners=${spark2SqlQueryExecutionListeners}
                 --conf spark.yarn.historyServer.address=${spark2YarnHistoryServerAddress}
                 --conf spark.eventLog.dir=${nameNode}${spark2EventLogDir}
-                --conf spark.sql.shuffle.partitions=7680
+                --conf spark.sql.shuffle.partitions=10000
                 --conf spark.network.timeout=${sparkNetworkTimeout}
             </spark-opts>
             <arg>--inputEntityPath</arg><arg>${inputGraphRootPath}/dataset</arg>
@@ -423,7 +428,7 @@
                 --conf spark.sql.queryExecutionListeners=${spark2SqlQueryExecutionListeners}
                 --conf spark.yarn.historyServer.address=${spark2YarnHistoryServerAddress}
                 --conf spark.eventLog.dir=${nameNode}${spark2EventLogDir}
-                --conf spark.sql.shuffle.partitions=7680
+                --conf spark.sql.shuffle.partitions=10000
                 --conf spark.network.timeout=${sparkNetworkTimeout}
             </spark-opts>
             <arg>--inputEntityPath</arg><arg>${inputGraphRootPath}/otherresearchproduct</arg>
@@ -451,7 +456,7 @@
                 --conf spark.sql.queryExecutionListeners=${spark2SqlQueryExecutionListeners}
                 --conf spark.yarn.historyServer.address=${spark2YarnHistoryServerAddress}
                 --conf spark.eventLog.dir=${nameNode}${spark2EventLogDir}
-                --conf spark.sql.shuffle.partitions=3840
+                --conf spark.sql.shuffle.partitions=5000
                 --conf spark.network.timeout=${sparkNetworkTimeout}
             </spark-opts>
             <arg>--inputEntityPath</arg><arg>${inputGraphRootPath}/software</arg>
@@ -479,7 +484,7 @@
                 --conf spark.sql.queryExecutionListeners=${spark2SqlQueryExecutionListeners}
                 --conf spark.yarn.historyServer.address=${spark2YarnHistoryServerAddress}
                 --conf spark.eventLog.dir=${nameNode}${spark2EventLogDir}
-                --conf spark.sql.shuffle.partitions=7680
+                --conf spark.sql.shuffle.partitions=8000
                 --conf spark.network.timeout=${sparkNetworkTimeout}
             </spark-opts>
             <arg>--inputEntityPath</arg><arg>${inputGraphRootPath}/datasource</arg>
@@ -507,7 +512,7 @@
                 --conf spark.sql.queryExecutionListeners=${spark2SqlQueryExecutionListeners}
                 --conf spark.yarn.historyServer.address=${spark2YarnHistoryServerAddress}
                 --conf spark.eventLog.dir=${nameNode}${spark2EventLogDir}
-                --conf spark.sql.shuffle.partitions=7680
+                --conf spark.sql.shuffle.partitions=10000
                 --conf spark.network.timeout=${sparkNetworkTimeout}
             </spark-opts>
             <arg>--inputEntityPath</arg><arg>${inputGraphRootPath}/organization</arg>
@@ -535,7 +540,7 @@
                 --conf spark.sql.queryExecutionListeners=${spark2SqlQueryExecutionListeners}
                 --conf spark.yarn.historyServer.address=${spark2YarnHistoryServerAddress}
                 --conf spark.eventLog.dir=${nameNode}${spark2EventLogDir}
-                --conf spark.sql.shuffle.partitions=3840
+                --conf spark.sql.shuffle.partitions=5000
                 --conf spark.network.timeout=${sparkNetworkTimeout}
             </spark-opts>
             <arg>--inputEntityPath</arg><arg>${inputGraphRootPath}/project</arg>
@@ -607,5 +612,4 @@
     </action>
 
     <end name="End"/>
-
 </workflow-app>
\ No newline at end of file