diff --git a/resources/log4j2.properties b/resources/log4j2.properties
index 0e53748..b28d102 100644
--- a/resources/log4j2.properties
+++ b/resources/log4j2.properties
@@ -20,7 +20,7 @@ appender.REQUEST_CSV.name = REQUEST_CSV
 appender.REQUEST_CSV.fileName = log/request.log
 appender.REQUEST_CSV.layout.type = PatternLayout
 appender.REQUEST_CSV.layout.pattern = %m%n
-appender.REQUEST_CSV.layout.header = type,flag,timeCreated,timeEnqueued,timeDequeued,timeForwarded,timeReceived,timeReturned%n
+appender.REQUEST_CSV.layout.header = type,flag,primaryMachine,timeCreated,timeEnqueued,timeDequeued,timeForwarded,timeReceived,timeReturned%n
 
 # Loggers
 
diff --git a/scripts/test_local.sh b/scripts/test_local.sh
index 01e940d..b22b648 100644
--- a/scripts/test_local.sh
+++ b/scripts/test_local.sh
@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 
-NUM_CLIENTS=180
+NUM_CLIENTS=10
 
 LOG_DIR=tmp/local
 mkdir -p $LOG_DIR
diff --git a/src/main/java/asl/LoadBalancer.java b/src/main/java/asl/LoadBalancer.java
index ce1db4a..b63ade0 100644
--- a/src/main/java/asl/LoadBalancer.java
+++ b/src/main/java/asl/LoadBalancer.java
@@ -52,6 +52,7 @@ private void handleRequest(Request request, SelectionKey selectionKey) {
 
         Integer primaryMachine = hasher.getPrimaryMachine(request.getKey());
         MiddlewareComponent mc = middlewareComponents.get(primaryMachine);
+        request.primaryMachine = primaryMachine;
 
         ByteBuffer buffer = request.getBuffer();
         buffer.limit(numBytesRead.get(selectionKey));
diff --git a/src/main/java/asl/Request.java b/src/main/java/asl/Request.java
index 1c1011f..77b4476 100644
--- a/src/main/java/asl/Request.java
+++ b/src/main/java/asl/Request.java
@@ -18,7 +18,7 @@ public class Request {
     private static final Logger log = LogManager.getLogger(Request.class);
     private static final Logger csvLog = LogManager.getLogger("request_csv");
 
-    public static final int LOG_SAMPLING_FREQUENCY = 1;
+    public static final int LOG_SAMPLING_FREQUENCY = 10;
 
     private RequestType type;
     private ByteBuffer buffer;
@@ -26,6 +26,7 @@ public class Request {
     private String key;
     private String stringRepresentation;
     private SelectionKey selectionKey;
+    public Integer primaryMachine = -1;
 
     private long timeCreated;
     private long timeEnqueued;
@@ -280,8 +281,8 @@ public static ResponseFlag getResponseFlag(ByteBuffer buffer) {
      */
     public void logTimestamps() {
         if(shouldLog) {
-            csvLog.info(String.format("%s,%s,%d,%d,%d,%d,%d,%d",
-                    type, responseFlag, timeCreated, timeEnqueued, timeDequeued, timeForwarded, timeReceived, timeReturned));
+            csvLog.info(String.format("%s,%s,%d,%d,%d,%d,%d,%d,%d",
+                    type, responseFlag, primaryMachine, timeCreated, timeEnqueued, timeDequeued, timeForwarded, timeReceived, timeReturned));
         }
     }