diff --git a/solr/core/src/java/org/apache/solr/update/UpdateCommand.java b/solr/core/src/java/org/apache/solr/update/UpdateCommand.java
index 0c51a33823a..4efd11ad5e3 100644
--- a/solr/core/src/java/org/apache/solr/update/UpdateCommand.java
+++ b/solr/core/src/java/org/apache/solr/update/UpdateCommand.java
@@ -44,7 +44,19 @@ public abstract class UpdateCommand implements Cloneable {
 
   @Override
   public String toString() {
-    return name() + "{flags="+flags+",_version_="+version;
+    StringBuilder sb  = new StringBuilder(50);
+    sb.append(name());
+    sb.append('{');
+    boolean needComma = false;
+    if (flags != 0) {
+      sb.append("flags=").append(Integer.toHexString(flags));
+      needComma = true;
+    }
+    if (version != 0) {
+      if (needComma) sb.append(',');
+      sb.append("_version_=").append(version);
+    }
+    return sb.toString();
   }
 
   public long getVersion() {
diff --git a/solr/core/src/java/org/apache/solr/update/processor/LogUpdateProcessorFactory.java b/solr/core/src/java/org/apache/solr/update/processor/LogUpdateProcessorFactory.java
index a4f69db4798..7ca1bac8af1 100644
--- a/solr/core/src/java/org/apache/solr/update/processor/LogUpdateProcessorFactory.java
+++ b/solr/core/src/java/org/apache/solr/update/processor/LogUpdateProcessorFactory.java
@@ -94,7 +94,7 @@ class LogUpdateProcessor extends UpdateRequestProcessor {
   
   @Override
   public void processAdd(AddUpdateCommand cmd) throws IOException {
-    if (logDebug) { log.debug("PRE_UPDATE " + cmd.toString()); }
+    if (logDebug) { log.debug("PRE_UPDATE " + cmd.toString() + " " + req); }
 
     // call delegate first so we can log things like the version that get set later
     if (next != null) next.processAdd(cmd);
@@ -117,7 +117,7 @@ class LogUpdateProcessor extends UpdateRequestProcessor {
 
   @Override
   public void processDelete( DeleteUpdateCommand cmd ) throws IOException {
-    if (logDebug) { log.debug("PRE_UPDATE " + cmd.toString()); }
+    if (logDebug) { log.debug("PRE_UPDATE " + cmd.toString() + " " + req); }
     if (next != null) next.processDelete(cmd);
 
     if (cmd.isDeleteById()) {
@@ -145,7 +145,7 @@ class LogUpdateProcessor extends UpdateRequestProcessor {
 
   @Override
   public void processMergeIndexes(MergeIndexesCommand cmd) throws IOException {
-    if (logDebug) { log.debug("PRE_UPDATE " + cmd.toString()); }
+    if (logDebug) { log.debug("PRE_UPDATE " + cmd.toString() + " " + req); }
     if (next != null) next.processMergeIndexes(cmd);
 
     toLog.add("mergeIndexes", cmd.toString());
@@ -153,7 +153,7 @@ class LogUpdateProcessor extends UpdateRequestProcessor {
 
   @Override
   public void processCommit( CommitUpdateCommand cmd ) throws IOException {
-    if (logDebug) { log.debug("PRE_UPDATE " + cmd.toString()); }
+    if (logDebug) { log.debug("PRE_UPDATE " + cmd.toString() + " " + req); }
     if (next != null) next.processCommit(cmd);
 
 
@@ -166,7 +166,7 @@ class LogUpdateProcessor extends UpdateRequestProcessor {
    */
   @Override
   public void processRollback( RollbackUpdateCommand cmd ) throws IOException {
-    if (logDebug) { log.debug("PRE_UPDATE " + cmd.toString()); }
+    if (logDebug) { log.debug("PRE_UPDATE " + cmd.toString() + " " + req); }
     if (next != null) next.processRollback(cmd);
 
     toLog.add("rollback", "");
@@ -175,7 +175,7 @@ class LogUpdateProcessor extends UpdateRequestProcessor {
 
   @Override
   public void finish() throws IOException {
-    if (logDebug) { log.debug("PRE_UPDATE finish()"); }
+    if (logDebug) { log.debug("PRE_UPDATE FINISH " + req); }
     if (next != null) next.finish();
 
     // LOG A SUMMARY WHEN ALL DONE (INFO LEVEL)
diff --git a/solr/testlogging.properties b/solr/testlogging.properties
index 10a5a8982df..30f8f094484 100644
--- a/solr/testlogging.properties
+++ b/solr/testlogging.properties
@@ -7,8 +7,8 @@ java.util.logging.ConsoleHandler.formatter=org.apache.solr.SolrLogFormatter
 #.level=SEVERE
 .level=INFO
 
-#org.apache.solr.update.processor.LogUpdateProcessor=FINEST
-#org.apache.solr.update.processor.DistributedUpdateProcessor=FINEST
+#org.apache.solr.update.processor.LogUpdateProcessor.level=FINEST
+#org.apache.solr.update.processor.DistributedUpdateProcessor.level=FINEST
 #org.apache.solr.update.PeerSync.level=FINEST
 #org.apache.solr.core.CoreContainer.level=FINEST
 #org.apache.solr.cloud.RecoveryStrategy.level=FINEST