Updates to steps related to transfer data to impala cluster

1. Remove external table definitions in stats_ext
2. Fix the issue where some views are not created.
3. Added two workflow parameters for copying also the usage stats dbs

dhp-workflows/dhp-stats-update/src/main/resources/eu/dnetlib/dhp/oa/graph/stats/oozie_app/copyDataToImpalaCluster.sh

@@ -8,7 +8,7 @@ fi
 
 #export HADOOP_USER_NAME="dimitris.pierrakos"
 export HADOOP_USER_NAME=$5
-
+export PROD_USAGE_STATS_DB="openaire_prod_usage_stats"
 function copydb() {
   db=$1
   FILE=("hive_wf_tmp_"$RANDOM)
@@ -27,16 +27,23 @@ function copydb() {
 
   impala-shell --user $HADOOP_USER_NAME -q "INVALIDATE METADATA"
   echo "creating schema for ${db}"
+  for ((  k  = 0;  k  < 5;  k ++ )); do
   for i in `impala-shell --user $HADOOP_USER_NAME -d ${db} --delimited  -q "show tables"`;
     do
       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 -
+  done
 
-  # 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 --user $HADOOP_USER_NAME -d ${db} --delimited  -q "show tables"`;
-    do
-      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 -
+#  for i in `impala-shell --user $HADOOP_USER_NAME -d ${db} --delimited  -q "show tables"`;
+#    do
+#      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 --user $HADOOP_USER_NAME -d ${db} --delimited  -q "show tables"`;
+#    do
+#      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"
@@ -54,8 +61,11 @@ STATS_DB=$1
 MONITOR_DB=$2
 OBSERVATORY_DB=$3
 EXT_DB=$4
-HADOOP_USER_NAME=$5
+USAGE_STATS_DB=$5
+HADOOP_USER_NAME=$6
 
+copydb $USAGE_STATS_DB
+copydb $PROD_USAGE_STATS_DB
 copydb $EXT_DB
 copydb $STATS_DB
 copydb $MONITOR_DB

dhp-workflows/dhp-stats-update/src/main/resources/eu/dnetlib/dhp/oa/graph/stats/oozie_app/finalizeImpalaCluster.sh

@@ -22,7 +22,10 @@ MONITOR_DB=$3
 MONITOR_DB_SHADOW=$4
 OBSERVATORY_DB=$5
 OBSERVATORY_DB_SHADOW=$6
+USAGE_STATS_DB=$7
+USAGE_STATS_DB_SHADOW=$8
 
 createShadowDB $STATS_DB $STATS_DB_SHADOW
 createShadowDB $MONITOR_DB $MONITOR_DB_SHADOW
 createShadowDB $OBSERVATORY_DB $OBSERVATORY_DB_SHADOW
+createShadowDB USAGE_STATS_DB USAGE_STATS_DB_SHADOW

dhp-workflows/dhp-stats-update/src/main/resources/eu/dnetlib/dhp/oa/graph/stats/oozie_app/workflow.xml

@@ -12,6 +12,10 @@
             <name>external_stats_db_name</name>
             <description>the external stats that should be added since they are not included in the graph database</description>
         </property>
+        <property>
+            <name>usage_stats_db_name</name>
+            <description>the usage statistics database name</description>
+        </property>
         <property>
             <name>stats_db_shadow_name</name>
             <description>the name of the shadow schema</description>
@@ -32,6 +36,10 @@
             <name>observatory_db_shadow_name</name>
             <description>the name of the shadow monitor db</description>
         </property>
+        <property>
+            <name>usage_stats_db_shadow_name</name>
+            <description>the name of the shadow usage stats db</description>
+        </property>
         <property>
             <name>stats_tool_api_url</name>
             <description>The url of the API of the stats tool. Is used to trigger the cache update.</description>
@@ -434,6 +442,7 @@
             <argument>${monitor_db_name}</argument>
             <argument>${observatory_db_name}</argument>
             <argument>${external_stats_db_name}</argument>
+            <argument>${usage_stats_db_name}</argument>
             <argument>${hadoop_user_name}</argument>
             <file>copyDataToImpalaCluster.sh</file>
         </shell>
@@ -452,6 +461,8 @@
             <argument>${monitor_db_shadow_name}</argument>
             <argument>${observatory_db_name}</argument>
             <argument>${observatory_db_shadow_name}</argument>
+            <argument>${usage_stats_db_name}</argument>
+            <argument>${usage_stats_db_shadow_name}</argument>
             <file>finalizeImpalaCluster.sh</file>
         </shell>
         <ok to="Step24-updateCache"/>