diff --git a/smartgears/dataminer_app/tasks/dataminer-app.yml b/smartgears/dataminer_app/tasks/dataminer-app.yml
index 4dd3504c..356fceed 100644
--- a/smartgears/dataminer_app/tasks/dataminer-app.yml
+++ b/smartgears/dataminer_app/tasks/dataminer-app.yml
@@ -21,6 +21,10 @@
       subversion: repo={{ dataminer_wps_algorithms_svn }} dest={{ smartgears_user_home }}/wps_algorithms/algorithms checkout=yes force=yes update=yes
       tags: [ 'tomcat', 'dataminer', 'wps', 'dataminer_algorithms', 'dataminer_algorithms_svn' ]
 
+    - name: Create a directory where to install the algorithms updater logs and data
+      file: path={{ smartgears_user_home }}/wps_algorithms_install_log state=directory
+      tags: [ 'tomcat', 'dataminer', 'wps', 'dataminer_algorithms', 'dataminer_algorithms_script' ]
+
     - name: Install a script that updates the algorithms repository and adds the missing algorithms configurations
       become_user: "{{ d4science_ansible_become_user | default('root') }}"
       template: src=algorithms-updater.j2 dest=/usr/local/bin/algorithms-updater mode=0755
diff --git a/smartgears/dataminer_app/templates/algorithms-updater.j2 b/smartgears/dataminer_app/templates/algorithms-updater.j2
index 1c1099f4..1323199e 100644
--- a/smartgears/dataminer_app/templates/algorithms-updater.j2
+++ b/smartgears/dataminer_app/templates/algorithms-updater.j2
@@ -9,7 +9,7 @@ ADD_ALGORITHM_PATH={{ smartgears_user_home }}/algorithmInstaller/addAlgorithm.sh
 ALGORITHMS_FILE={{ dataminer_wps_algorithms_dest }}/${INFRA_REFERENCE}/algorithms
 OUT_DIR=$( mktemp -d -t algorithms-updater.XXXXXXXXXX )
 ALGORITHMS_TEMP_SCRIPT=$OUT_DIR/add_algorithms
-LOG_DIR={{ smartgears_user_home }}/wps_algorithms_install_log/
+LOG_DIR={{ smartgears_user_home }}/wps_algorithms_install_log
 LOG_FILE=${LOG_DIR}/algorithms_updater.log
 ALGORITHMS_INSTALLED_FILE=${LOG_DIR}/already_installed_algorithms.txt
 LOCK_FILE=${LOG_DIR}/.algorithms_updater.lock
@@ -65,7 +65,7 @@ function algorithms_updater() {
     echo "#!/bin/bash" > $ALGORITHMS_TEMP_SCRIPT.head
     echo "cd $ADD_ALGORITHM_DIR" >> $ALGORITHMS_TEMP_SCRIPT.head
     echo "" >> $ALGORITHMS_TEMP_SCRIPT.head
-    awk -F \| '{ print $2 "|" $6 }' $ALGORITHMS_FILE > $ALGORITHMS_TEMP_SCRIPT.algorithmslist
+    awk -F \| '{ print $2 "|" $6 "|" $8 }' $ALGORITHMS_FILE > $ALGORITHMS_TEMP_SCRIPT.algorithmslist
     sed -i -e 's/<notextile>//g' $ALGORITHMS_TEMP_SCRIPT.algorithmslist
     sed -i -e 's/<\/notextile>//g' $ALGORITHMS_TEMP_SCRIPT.algorithmslist
     sed -i -e 's/\ N\ /\ Y\ /g' $ALGORITHMS_TEMP_SCRIPT.algorithmslist
@@ -78,6 +78,8 @@ function algorithms_updater() {
         ALGO_PRESENT=
         ALGO_NAME=$( echo "$algo" | awk -F \| '{ print $1 }' )
         ALGO_BODY=$( echo "$algo" | awk -F \| '{ print $2 }' )
+        ALGO_DATE=$( echo "$algo" | awk -F \| '{ print $3 }' )
+        ALGO_TIMESTAMP=$( date +%s -d "$ALGO_DATE" )
         ALGO_LINE=$( egrep ^"$ALGO_NAME" $ALGORITHMS_INSTALLED_FILE )
         ALGO_PRESENT=$?
         if [ $ALGO_PRESENT -ne 0 ] ; then
@@ -97,9 +99,36 @@ function algorithms_updater() {
             echo 'if [ $RETVAL -ne 0 ] ; then' >> $ALGORITHMS_TEMP_SCRIPT.body_
             echo "    logger 'algorithms-updater: the adding of algorithm $ALGO_NAME failed'" >> $ALGORITHMS_TEMP_SCRIPT.body_
             echo "else" >> $ALGORITHMS_TEMP_SCRIPT.body_
-            echo "    echo '$ALGO_NAME' >> $ALGORITHMS_INSTALLED_FILE" >> $ALGORITHMS_TEMP_SCRIPT.body_
+            echo "    echo '$ALGO_NAME | $ALGO_DATE' >> $ALGORITHMS_INSTALLED_FILE" >> $ALGORITHMS_TEMP_SCRIPT.body_
             echo "    logger 'algorithms-updater: the adding of algorithm $ALGO_NAME succeeded'" >> $ALGORITHMS_TEMP_SCRIPT.body_
             echo "fi" >> $ALGORITHMS_TEMP_SCRIPT.body_
+        else
+            ALGO_LOCAL_TIMESTAMP=0
+            ALGO_LOCAL_DATE=$( egrep ^"$ALGO_NAME" $ALGORITHMS_INSTALLED_FILE | awk -F \| '{ print $2 }' | grep -v \' )
+            ALGO_LOCAL_TIMESTAMP=$(  date +%s -d "$ALGO_LOCAL_DATE" )
+            if [ $ALGO_LOCAL_TIMESTAMP -ne $ALGO_TIMESTAMP ] ; then
+                echo "logger 'algorithms-updater: running the add command of algorithm $ALGO_NAME'" >> $ALGORITHMS_TEMP_SCRIPT.body_
+                echo "logger 'algorithms-updater: the add command string is $ALGO_BODY'" >> $ALGORITHMS_TEMP_SCRIPT.body_
+                echo "RETVAL=" >> $ALGORITHMS_TEMP_SCRIPT.body_
+                echo "echo ''" >> $ALGORITHMS_TEMP_SCRIPT.body_
+                echo "echo '-------------------------------------------'" >> $ALGORITHMS_TEMP_SCRIPT.body_
+                echo "echo ''" >> $ALGORITHMS_TEMP_SCRIPT.body_
+                echo "echo 'Adding algorithm $ALGO_NAME'" >> $ALGORITHMS_TEMP_SCRIPT.body_
+                echo "echo 'With command $ALGO_BODY'" >> $ALGORITHMS_TEMP_SCRIPT.body_
+                echo "echo ''" >> $ALGORITHMS_TEMP_SCRIPT.body_
+                echo "$ALGO_BODY" >> $ALGORITHMS_TEMP_SCRIPT.body_
+                echo 'RETVAL=$?' >> $ALGORITHMS_TEMP_SCRIPT.body_
+                echo "echo 'Done.'" >> $ALGORITHMS_TEMP_SCRIPT.body_
+                echo "echo ''" >> $ALGORITHMS_TEMP_SCRIPT.body_
+                echo 'if [ $RETVAL -ne 0 ] ; then' >> $ALGORITHMS_TEMP_SCRIPT.body_
+                echo "    logger 'algorithms-updater: the adding of algorithm $ALGO_NAME failed'" >> $ALGORITHMS_TEMP_SCRIPT.body_
+                echo "else" >> $ALGORITHMS_TEMP_SCRIPT.body_
+                echo "    echo 'grep -v $ALGO_NAME $ALGORITHMS_INSTALLED_FILE > ${ALGORITHMS_INSTALLED_FILE}_ " >> $ALGORITHMS_TEMP_SCRIPT.body_
+                echo "    echo 'mv ${ALGORITHMS_INSTALLED_FILE}_ $ALGORITHMS_INSTALLED_FILE" >> $ALGORITHMS_TEMP_SCRIPT.body_
+                echo "    echo '$ALGO_NAME | $ALGO_DATE' >> $ALGORITHMS_INSTALLED_FILE" >> $ALGORITHMS_TEMP_SCRIPT.body_
+                echo "    logger 'algorithms-updater: the adding of algorithm $ALGO_NAME succeeded'" >> $ALGORITHMS_TEMP_SCRIPT.body_
+                echo "fi" >> $ALGORITHMS_TEMP_SCRIPT.body_
+            fi                
         fi
     done < ${ALGORITHMS_TEMP_SCRIPT}.algorithmslist
     set -o pipefail