diff --git a/src/main/java/org/tikv/common/PDClient.java b/src/main/java/org/tikv/common/PDClient.java
index a9c4c5c9c84..4b8a283c40c 100644
--- a/src/main/java/org/tikv/common/PDClient.java
+++ b/src/main/java/org/tikv/common/PDClient.java
@@ -840,4 +840,12 @@ private Metapb.Region decodeRegion(Metapb.Region region) {
 
     return builder.build();
   }
+
+  public long getClusterId() {
+    return header.getClusterId();
+  }
+
+  public List<URI> getPdAddrs() {
+    return pdAddrs;
+  }
 }
diff --git a/src/main/java/org/tikv/common/log/SlowLog.java b/src/main/java/org/tikv/common/log/SlowLog.java
index 965266e8064..ad137100c01 100644
--- a/src/main/java/org/tikv/common/log/SlowLog.java
+++ b/src/main/java/org/tikv/common/log/SlowLog.java
@@ -17,7 +17,11 @@
 
 package org.tikv.common.log;
 
+import com.google.common.collect.ImmutableMap;
+import java.util.Map;
+
 public interface SlowLog {
+
   SlowLogSpan start(String name);
 
   long getTraceId();
@@ -26,5 +30,11 @@ public interface SlowLog {
 
   void setError(Throwable err);
 
+  SlowLog withFields(Map<String, Object> fields);
+
+  default SlowLog withField(String key, Object value) {
+    return withFields(ImmutableMap.of(key, value));
+  }
+
   void log();
 }
diff --git a/src/main/java/org/tikv/common/log/SlowLogEmptyImpl.java b/src/main/java/org/tikv/common/log/SlowLogEmptyImpl.java
index a1959d96b32..ed4bbb1b834 100644
--- a/src/main/java/org/tikv/common/log/SlowLogEmptyImpl.java
+++ b/src/main/java/org/tikv/common/log/SlowLogEmptyImpl.java
@@ -17,6 +17,8 @@
 
 package org.tikv.common.log;
 
+import java.util.Map;
+
 public class SlowLogEmptyImpl implements SlowLog {
   public static final SlowLogEmptyImpl INSTANCE = new SlowLogEmptyImpl();
 
@@ -40,6 +42,11 @@ public long getThresholdMS() {
   @Override
   public void setError(Throwable err) {}
 
+  @Override
+  public SlowLog withFields(Map<String, Object> fields) {
+    return this;
+  }
+
   @Override
   public void log() {}
 }
diff --git a/src/main/java/org/tikv/common/log/SlowLogImpl.java b/src/main/java/org/tikv/common/log/SlowLogImpl.java
index c6efcf457a7..0c75211263f 100644
--- a/src/main/java/org/tikv/common/log/SlowLogImpl.java
+++ b/src/main/java/org/tikv/common/log/SlowLogImpl.java
@@ -22,12 +22,16 @@
 import java.math.BigInteger;
 import java.text.SimpleDateFormat;
 import java.util.ArrayList;
+import java.util.HashMap;
 import java.util.List;
+import java.util.Map;
+import java.util.Map.Entry;
 import java.util.Random;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 public class SlowLogImpl implements SlowLog {
+
   private static final Logger logger = LoggerFactory.getLogger(SlowLogImpl.class);
 
   private static final int MAX_SPAN_SIZE = 1024;
@@ -35,6 +39,7 @@ public class SlowLogImpl implements SlowLog {
   private static final Random random = new Random();
 
   private final List<SlowLogSpan> slowLogSpans = new ArrayList<>();
+  private final HashMap<String, Object> fields = new HashMap<>();
   private Throwable error = null;
 
   private final long startMS;
@@ -81,6 +86,12 @@ public void setError(Throwable err) {
     this.error = err;
   }
 
+  @Override
+  public SlowLog withFields(Map<String, Object> fields) {
+    this.fields.putAll(fields);
+    return this;
+  }
+
   @Override
   public void log() {
     recordTime();
@@ -120,6 +131,25 @@ JsonObject getSlowLogJson() {
     }
     jsonObject.add("spans", jsonArray);
 
+    for (Entry<String, Object> entry : fields.entrySet()) {
+      Object value = entry.getValue();
+      if (value instanceof List) {
+        JsonArray field = new JsonArray();
+        for (Object o : (List<?>) value) {
+          field.add(o.toString());
+        }
+        jsonObject.add(entry.getKey(), field);
+      } else if (value instanceof Map) {
+        JsonObject field = new JsonObject();
+        for (Entry<?, ?> e : ((Map<?, ?>) value).entrySet()) {
+          field.addProperty(e.getKey().toString(), e.getValue().toString());
+        }
+        jsonObject.add(entry.getKey(), field);
+      } else {
+        jsonObject.addProperty(entry.getKey(), value.toString());
+      }
+    }
+
     return jsonObject;
   }
 
diff --git a/src/main/java/org/tikv/raw/RawKVClient.java b/src/main/java/org/tikv/raw/RawKVClient.java
index 950f4774ddf..d4bbeebef78 100644
--- a/src/main/java/org/tikv/raw/RawKVClient.java
+++ b/src/main/java/org/tikv/raw/RawKVClient.java
@@ -17,13 +17,31 @@
 
 package org.tikv.raw;
 
-import static org.tikv.common.util.ClientUtils.*;
+import static org.tikv.common.util.ClientUtils.appendBatches;
+import static org.tikv.common.util.ClientUtils.genUUID;
+import static org.tikv.common.util.ClientUtils.getBatches;
+import static org.tikv.common.util.ClientUtils.getTasks;
+import static org.tikv.common.util.ClientUtils.getTasksWithOutput;
+import static org.tikv.common.util.ClientUtils.groupKeysByRegion;
 
 import com.google.protobuf.ByteString;
 import io.prometheus.client.Counter;
 import io.prometheus.client.Histogram;
-import java.util.*;
-import java.util.concurrent.*;
+import java.net.URI;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+import java.util.Objects;
+import java.util.Optional;
+import java.util.Queue;
+import java.util.concurrent.ExecutionException;
+import java.util.concurrent.ExecutorCompletionService;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Future;
+import java.util.concurrent.TimeUnit;
 import java.util.stream.Collectors;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -44,10 +62,19 @@
 import org.tikv.common.region.RegionStoreClient;
 import org.tikv.common.region.RegionStoreClient.RegionStoreClientBuilder;
 import org.tikv.common.region.TiRegion;
-import org.tikv.common.util.*;
+import org.tikv.common.util.BackOffFunction;
+import org.tikv.common.util.BackOffer;
+import org.tikv.common.util.Batch;
+import org.tikv.common.util.ConcreteBackOffer;
+import org.tikv.common.util.DeleteRange;
+import org.tikv.common.util.HistogramUtils;
+import org.tikv.common.util.Pair;
+import org.tikv.common.util.ScanOption;
 import org.tikv.kvproto.Kvrpcpb.KvPair;
 
 public class RawKVClient implements RawKVClientBase {
+  private final long clusterId;
+  private final List<URI> pdAddresses;
   private final TiSession tiSession;
   private final RegionStoreClientBuilder clientBuilder;
   private final TiConfiguration conf;
@@ -95,6 +122,12 @@ public RawKVClient(TiSession session, RegionStoreClientBuilder clientBuilder) {
     this.batchScanThreadPool = session.getThreadPoolForBatchScan();
     this.deleteRangeThreadPool = session.getThreadPoolForDeleteRange();
     this.atomicForCAS = conf.isEnableAtomicForCAS();
+    this.clusterId = session.getPDClient().getClusterId();
+    this.pdAddresses = session.getPDClient().getPdAddrs();
+  }
+
+  private SlowLog withClusterInfo(SlowLog logger) {
+    return logger.withField("cluster_id", clusterId).withField("pd_addresses", pdAddresses);
   }
 
   @Override
@@ -110,7 +143,7 @@ public void put(ByteString key, ByteString value, long ttl) {
     String label = "client_raw_put";
     Histogram.Timer requestTimer = RAW_REQUEST_LATENCY.labels(label).startTimer();
 
-    SlowLog slowLog = new SlowLogImpl(conf.getRawKVWriteSlowLogInMS());
+    SlowLog slowLog = withClusterInfo(new SlowLogImpl(conf.getRawKVWriteSlowLogInMS()));
     SlowLogSpan span = slowLog.start("put");
     span.addProperty("key", KeyUtils.formatBytesUTF8(key));
 
@@ -172,7 +205,7 @@ public void compareAndSet(
     String label = "client_raw_compare_and_set";
     Histogram.Timer requestTimer = RAW_REQUEST_LATENCY.labels(label).startTimer();
 
-    SlowLog slowLog = new SlowLogImpl(conf.getRawKVWriteSlowLogInMS());
+    SlowLog slowLog = withClusterInfo(new SlowLogImpl(conf.getRawKVWriteSlowLogInMS()));
     SlowLogSpan span = slowLog.start("putIfAbsent");
     span.addProperty("key", KeyUtils.formatBytesUTF8(key));
 
@@ -211,7 +244,7 @@ public void batchPut(Map<ByteString, ByteString> kvPairs, long ttl) {
     String label = "client_raw_batch_put";
     Histogram.Timer requestTimer = RAW_REQUEST_LATENCY.labels(label).startTimer();
 
-    SlowLog slowLog = new SlowLogImpl(conf.getRawKVBatchWriteSlowLogInMS());
+    SlowLog slowLog = withClusterInfo(new SlowLogImpl(conf.getRawKVBatchWriteSlowLogInMS()));
     SlowLogSpan span = slowLog.start("batchPut");
     span.addProperty("keySize", String.valueOf(kvPairs.size()));
 
@@ -237,7 +270,7 @@ public Optional<ByteString> get(ByteString key) {
     String label = "client_raw_get";
     Histogram.Timer requestTimer = RAW_REQUEST_LATENCY.labels(label).startTimer();
 
-    SlowLog slowLog = new SlowLogImpl(conf.getRawKVReadSlowLogInMS());
+    SlowLog slowLog = withClusterInfo(new SlowLogImpl(conf.getRawKVReadSlowLogInMS()));
     SlowLogSpan span = slowLog.start("get");
     span.addProperty("key", KeyUtils.formatBytesUTF8(key));
 
@@ -270,7 +303,7 @@ public Optional<ByteString> get(ByteString key) {
   public List<KvPair> batchGet(List<ByteString> keys) {
     String label = "client_raw_batch_get";
     Histogram.Timer requestTimer = RAW_REQUEST_LATENCY.labels(label).startTimer();
-    SlowLog slowLog = new SlowLogImpl(conf.getRawKVBatchReadSlowLogInMS());
+    SlowLog slowLog = withClusterInfo(new SlowLogImpl(conf.getRawKVBatchReadSlowLogInMS()));
     SlowLogSpan span = slowLog.start("batchGet");
     span.addProperty("keySize", String.valueOf(keys.size()));
     ConcreteBackOffer backOffer =
@@ -295,7 +328,7 @@ public List<KvPair> batchGet(List<ByteString> keys) {
   public void batchDelete(List<ByteString> keys) {
     String label = "client_raw_batch_delete";
     Histogram.Timer requestTimer = RAW_REQUEST_LATENCY.labels(label).startTimer();
-    SlowLog slowLog = new SlowLogImpl(conf.getRawKVBatchWriteSlowLogInMS());
+    SlowLog slowLog = withClusterInfo(new SlowLogImpl(conf.getRawKVBatchWriteSlowLogInMS()));
     SlowLogSpan span = slowLog.start("batchDelete");
     span.addProperty("keySize", String.valueOf(keys.size()));
     ConcreteBackOffer backOffer =
@@ -320,7 +353,7 @@ public void batchDelete(List<ByteString> keys) {
   public Optional<Long> getKeyTTL(ByteString key) {
     String label = "client_raw_get_key_ttl";
     Histogram.Timer requestTimer = RAW_REQUEST_LATENCY.labels(label).startTimer();
-    SlowLog slowLog = new SlowLogImpl(conf.getRawKVReadSlowLogInMS());
+    SlowLog slowLog = withClusterInfo(new SlowLogImpl(conf.getRawKVReadSlowLogInMS()));
     SlowLogSpan span = slowLog.start("getKeyTTL");
     span.addProperty("key", KeyUtils.formatBytesUTF8(key));
     ConcreteBackOffer backOffer =
@@ -428,7 +461,7 @@ public List<KvPair> scan(ByteString startKey, ByteString endKey, int limit) {
   public List<KvPair> scan(ByteString startKey, ByteString endKey, int limit, boolean keyOnly) {
     String label = "client_raw_scan";
     Histogram.Timer requestTimer = RAW_REQUEST_LATENCY.labels(label).startTimer();
-    SlowLog slowLog = new SlowLogImpl(conf.getRawKVScanSlowLogInMS());
+    SlowLog slowLog = withClusterInfo(new SlowLogImpl(conf.getRawKVScanSlowLogInMS()));
     SlowLogSpan span = slowLog.start("scan");
     span.addProperty("startKey", KeyUtils.formatBytesUTF8(startKey));
     span.addProperty("endKey", KeyUtils.formatBytesUTF8(endKey));
@@ -473,7 +506,7 @@ public List<KvPair> scan(ByteString startKey, ByteString endKey) {
   public List<KvPair> scan(ByteString startKey, ByteString endKey, boolean keyOnly) {
     String label = "client_raw_scan_without_limit";
     Histogram.Timer requestTimer = RAW_REQUEST_LATENCY.labels(label).startTimer();
-    SlowLog slowLog = new SlowLogImpl(conf.getRawKVScanSlowLogInMS());
+    SlowLog slowLog = withClusterInfo(new SlowLogImpl(conf.getRawKVScanSlowLogInMS()));
     SlowLogSpan span = slowLog.start("scan");
     span.addProperty("startKey", KeyUtils.formatBytesUTF8(startKey));
     span.addProperty("endKey", KeyUtils.formatBytesUTF8(endKey));
@@ -539,7 +572,7 @@ public List<KvPair> scanPrefix(ByteString prefixKey, boolean keyOnly) {
   public void delete(ByteString key) {
     String label = "client_raw_delete";
     Histogram.Timer requestTimer = RAW_REQUEST_LATENCY.labels(label).startTimer();
-    SlowLog slowLog = new SlowLogImpl(conf.getRawKVWriteSlowLogInMS());
+    SlowLog slowLog = withClusterInfo(new SlowLogImpl(conf.getRawKVWriteSlowLogInMS()));
     SlowLogSpan span = slowLog.start("delete");
     span.addProperty("key", KeyUtils.formatBytesUTF8(key));
     ConcreteBackOffer backOffer =
diff --git a/src/test/java/org/tikv/common/log/SlowLogImplTest.java b/src/test/java/org/tikv/common/log/SlowLogImplTest.java
index 23f103575bc..f8b3ad2b307 100644
--- a/src/test/java/org/tikv/common/log/SlowLogImplTest.java
+++ b/src/test/java/org/tikv/common/log/SlowLogImplTest.java
@@ -17,8 +17,11 @@
 
 package org.tikv.common.log;
 
+import com.google.common.collect.ImmutableList;
+import com.google.common.collect.ImmutableMap;
 import com.google.gson.JsonArray;
 import com.google.gson.JsonObject;
+import java.util.concurrent.atomic.AtomicInteger;
 import org.junit.Assert;
 import org.junit.Test;
 
@@ -63,4 +66,24 @@ public void testUnsignedLong() {
     Assert.assertEquals("18446744073709551615", SlowLogImpl.toUnsignedBigInteger(-1L).toString());
     Assert.assertEquals("18446744073709551614", SlowLogImpl.toUnsignedBigInteger(-2L).toString());
   }
+
+  @Test
+  public void testWithFields() throws InterruptedException {
+    SlowLogImpl slowLog = new SlowLogImpl(1);
+    slowLog
+        .withField("key0", "value0")
+        .withField("key1", ImmutableList.of("value0", "value1"))
+        .withField("key2", ImmutableMap.of("key3", "value3"));
+
+    JsonObject object = slowLog.getSlowLogJson();
+    Assert.assertEquals("value0", object.get("key0").getAsString());
+
+    AtomicInteger i = new AtomicInteger();
+    object
+        .get("key1")
+        .getAsJsonArray()
+        .forEach(e -> Assert.assertEquals("value" + (i.getAndIncrement()), e.getAsString()));
+
+    Assert.assertEquals("value3", object.get("key2").getAsJsonObject().get("key3").getAsString());
+  }
 }