diff --git a/dspace-api/src/main/java/org/dspace/statistics/SolrLoggerServiceImpl.java b/dspace-api/src/main/java/org/dspace/statistics/SolrLoggerServiceImpl.java
index 979ca9ea09..e6c09ea32b 100644
--- a/dspace-api/src/main/java/org/dspace/statistics/SolrLoggerServiceImpl.java
+++ b/dspace-api/src/main/java/org/dspace/statistics/SolrLoggerServiceImpl.java
@@ -45,7 +45,6 @@ import org.apache.commons.lang.time.DateFormatUtils;
 import org.apache.http.HttpResponse;
 import org.apache.http.client.methods.HttpGet;
 import org.apache.http.impl.client.DefaultHttpClient;
-import org.apache.log4j.Logger;
 import org.apache.solr.client.solrj.SolrQuery;
 import org.apache.solr.client.solrj.SolrServer;
 import org.apache.solr.client.solrj.SolrServerException;
@@ -89,6 +88,8 @@ import org.dspace.statistics.util.DnsLookup;
 import org.dspace.statistics.util.LocationUtils;
 import org.dspace.statistics.util.SpiderDetector;
 import org.dspace.usage.UsageWorkflowEvent;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.InitializingBean;
 import org.springframework.beans.factory.annotation.Autowired;
 
@@ -102,7 +103,9 @@ import org.springframework.beans.factory.annotation.Autowired;
  * @author mdiggory at atmire.com
  */
 public class SolrLoggerServiceImpl implements SolrLoggerService, InitializingBean {
-    private static final Logger log = Logger.getLogger(SolrLoggerServiceImpl.class);
+    private static final Logger log
+        = LoggerFactory.getLogger(SolrLoggerServiceImpl.class);
+
     private static final String MULTIPLE_VALUES_SPLITTER = "|";
     protected SolrServer solr;
 
@@ -358,7 +361,7 @@ public class SolrLoggerServiceImpl implements SolrLoggerService, InitializingBea
                         doc1.addField("longitude", longitude);
                     }
                 } catch (IOException | GeoIp2Exception e) {
-                    log.error("Unable to get location of request", e);
+                    log.error("Unable to get location of request:  {}", e.getMessage());
                 }
             }
         }
@@ -445,7 +448,7 @@ public class SolrLoggerServiceImpl implements SolrLoggerService, InitializingBea
                         doc1.addField("longitude", longitude);
                     }
                 } catch (GeoIp2Exception | IOException e) {
-                    log.error("Unable to get location of request", e);
+                    log.error("Unable to get location of request:  {}", e.getMessage());
                 }
             }
         }