Support cluster event parsing on FDB 6.3
The cluster event parsing tool contains the cluster protocol version within it, and it will only parse events if the protocol version matches. That value is still hard coded to the FDB 6.2 protocol version, so we should update it to be able to parse FDB 6.3 versions.

FDB also added a few extra changes in the transaction sampling data in 6.3 that we should be aware of and try and properly parse. See the changes here (based on the FDB protocol version): https://github.com/apple/foundationdb/blob/c942ee995ebe0718420e24e1dabe1ddb2e0af30c/contrib/transaction_profiling_analyzer/transaction_profiling_analyzer.py
diff --git a/fdb-extensions/src/main/java/com/apple/foundationdb/clientlog/FDBClientLogEvents.java b/fdb-extensions/src/main/java/com/apple/foundationdb/clientlog/FDBClientLogEvents.java
index 8b69ff13..f09e7ca0 100644
--- a/fdb-extensions/src/main/java/com/apple/foundationdb/clientlog/FDBClientLogEvents.java
+++ b/fdb-extensions/src/main/java/com/apple/foundationdb/clientlog/FDBClientLogEvents.java
@@ -36,6 +36,7 @@ import javax.annotation.Nonnull;
 import javax.annotation.Nullable;
 import java.nio.ByteBuffer;
 import java.nio.ByteOrder;
+import java.nio.charset.StandardCharsets;
 import java.time.Instant;
 import java.time.ZoneId;
 import java.util.Arrays;
@@ -62,8 +63,9 @@ public class FDBClientLogEvents {
     public static final long PROTOCOL_VERSION_6_0 = 0x0FDB00A570010001L;
     public static final long PROTOCOL_VERSION_6_1 = 0x0FDB00B061060001L;
     public static final long PROTOCOL_VERSION_6_2 = 0x0FDB00B062010001L;
+    public static final long PROTOCOL_VERSION_6_3 = 0x0FDB00B063010001L;
     private static final long[] SUPPORTED_PROTOCOL_VERSIONS = {
-            PROTOCOL_VERSION_5_2, PROTOCOL_VERSION_6_0, PROTOCOL_VERSION_6_1, PROTOCOL_VERSION_6_2
+            PROTOCOL_VERSION_5_2, PROTOCOL_VERSION_6_0, PROTOCOL_VERSION_6_1, PROTOCOL_VERSION_6_2, PROTOCOL_VERSION_6_3
     };
 
     //                    0               1         2         3         4         5         6         7
@@ -99,14 +101,16 @@ public class FDBClientLogEvents {
      */
     public abstract static class Event {
         protected final double startTimestamp;
+        protected final String dcId;
 
-        protected Event(double startTimestamp) {
+        protected Event(double startTimestamp, String dcId) {
             this.startTimestamp = startTimestamp;
+            this.dcId = dcId;
         }
 
         public abstract int getType();
 
-        public double getStartTimestampDouoble() {
+        public double getStartTimestampDouble() {
             return startTimestamp;
         }
 
@@ -124,6 +128,19 @@ public class FDBClientLogEvents {
             Instant startTimestamp = getStartTimestamp();
             return startTimestamp.atOffset(ZoneId.systemDefault().getRules().getOffset(startTimestamp)).toString();
         }
+
+        public String getDcId() {
+            return dcId;
+        }
+
+        protected StringJoiner toStringBase() {
+            StringJoiner joiner = new StringJoiner(", ", getClass().getSimpleName() + "[", "]")
+                    .add("startTimestamp=" + getStartTimestampString());
+            if (dcId.length() > 0) {
+                joiner.add("dcId=" + dcId);
+            }
+            return joiner;
+        }
     }
 
     /**
@@ -145,11 +162,13 @@ public class FDBClientLogEvents {
     public static class EventGetVersion extends Event {
         private final double latency;
         private final int priority;
+        private final long readVersion;
 
-        public EventGetVersion(double startTimestamp, double latency, int priority) {
-            super(startTimestamp);
+        public EventGetVersion(double startTimestamp, String dcId, double latency, int priority, long readVersion) {
+            super(startTimestamp, dcId);
             this.latency = latency;
             this.priority = priority;
+            this.readVersion = readVersion;
         }
 
         @Override
@@ -165,12 +184,16 @@ public class FDBClientLogEvents {
             return priority;
         }
 
+        public long getReadVersion() {
+            return readVersion;
+        }
+
         @Override
         public String toString() {
-            return new StringJoiner(", ", getClass().getSimpleName() + "[", "]")
-                    .add("startTimestamp=" + getStartTimestampString())
+            return toStringBase()
                     .add("latency=" + latency)
                     .add("priority=" + priority)
+                    .add("readVersion=" + readVersion)
                     .toString();
         }
     }
@@ -185,8 +208,8 @@ public class FDBClientLogEvents {
         @Nonnull
         private final byte[] key;
 
-        public EventGet(double startTimestamp, double latency, int size, @Nonnull byte[] key) {
-            super(startTimestamp);
+        public EventGet(double startTimestamp, String dcId, double latency, int size, @Nonnull byte[] key) {
+            super(startTimestamp, dcId);
             this.latency = latency;
             this.size = size;
             this.key = key;
@@ -212,8 +235,7 @@ public class FDBClientLogEvents {
 
         @Override
         public String toString() {
-            return new StringJoiner(", ", getClass().getSimpleName() + "[", "]")
-                    .add("startTimestamp=" + getStartTimestampString())
+            return toStringBase()
                     .add("latency=" + latency)
                     .add("size=" + size)
                     .add("key=" + ByteArrayUtil.printable(key))
@@ -230,8 +252,8 @@ public class FDBClientLogEvents {
         @Nonnull
         private final Range range;
 
-        public EventGetRange(double startTimestamp, double latency, int size, @Nonnull Range range) {
-            super(startTimestamp);
+        public EventGetRange(double startTimestamp, String dcId, double latency, int size, @Nonnull Range range) {
+            super(startTimestamp, dcId);
             this.latency = latency;
             this.size = size;
             this.range = range;
@@ -257,8 +279,7 @@ public class FDBClientLogEvents {
 
         @Override
         public String toString() {
-            return new StringJoiner(", ", getClass().getSimpleName() + "[", "]")
-                    .add("startTimestamp=" + getStartTimestampString())
+            return toStringBase()
                     .add("latency=" + latency)
                     .add("size=" + size)
                     .add("range=" + range)
@@ -273,15 +294,17 @@ public class FDBClientLogEvents {
         private final double latency;
         private final int numMutations;
         private final int commitBytes;
+        private final long commitVersion;
         @Nonnull
         private final CommitRequest commitRequest;
 
-        public EventCommit(double startTimestamp, double latency, int numMutations, int commitBytes,
+        public EventCommit(double startTimestamp, String dcId, double latency, int numMutations, int commitBytes, long commitVersion,
                            @Nonnull CommitRequest commitRequest) {
-            super(startTimestamp);
+            super(startTimestamp, dcId);
             this.latency = latency;
             this.numMutations = numMutations;
             this.commitBytes = commitBytes;
+            this.commitVersion = commitVersion;
             this.commitRequest = commitRequest;
         }
 
@@ -309,11 +332,11 @@ public class FDBClientLogEvents {
 
         @Override
         public String toString() {
-            return new StringJoiner(", ", getClass().getSimpleName() + "[", "]")
-                    .add("startTimestamp=" + getStartTimestampString())
+            return toStringBase()
                     .add("latency=" + latency)
                     .add("numMutations=" + numMutations)
                     .add("commitBytes=" + commitBytes)
+                    .add("commitVersion=" + commitVersion)
                     .add("commitRequest=" + commitRequest)
                     .toString();
         }
@@ -328,8 +351,8 @@ public class FDBClientLogEvents {
         @Nonnull
         private final byte[] key;
 
-        public EventGetError(double startTimestamp, int errorCode, @Nonnull byte[] key) {
-            super(startTimestamp);
+        public EventGetError(double startTimestamp, String dcId, int errorCode, @Nonnull byte[] key) {
+            super(startTimestamp, dcId);
             this.errorCode = errorCode;
             this.key = key;
         }
@@ -350,8 +373,7 @@ public class FDBClientLogEvents {
 
         @Override
         public String toString() {
-            return new StringJoiner(", ", getClass().getSimpleName() + "[", "]")
-                    .add("startTimestamp=" + getStartTimestampString())
+            return toStringBase()
                     .add("errorCode=" + errorCode)
                     .add("key=" + Arrays.toString(key))
                     .toString();
@@ -366,8 +388,8 @@ public class FDBClientLogEvents {
         @Nonnull
         private final Range range;
 
-        public EventGetRangeError(double startTimestamp, int errorCode, @Nonnull Range range) {
-            super(startTimestamp);
+        public EventGetRangeError(double startTimestamp, String dcId, int errorCode, @Nonnull Range range) {
+            super(startTimestamp, dcId);
             this.errorCode = errorCode;
             this.range = range;
         }
@@ -388,8 +410,7 @@ public class FDBClientLogEvents {
 
         @Override
         public String toString() {
-            return new StringJoiner(", ", getClass().getSimpleName() + "[", "]")
-                    .add("startTimestamp=" + getStartTimestampString())
+            return toStringBase()
                     .add("errorCode=" + errorCode)
                     .add("range=" + range)
                     .toString();
@@ -404,8 +425,8 @@ public class FDBClientLogEvents {
         @Nonnull
         private final CommitRequest commitRequest;
 
-        public EventCommitError(double startTimestamp, int errorCode, @Nonnull CommitRequest commitRequest) {
-            super(startTimestamp);
+        public EventCommitError(double startTimestamp, String dcId, int errorCode, @Nonnull CommitRequest commitRequest) {
+            super(startTimestamp, dcId);
             this.errorCode = errorCode;
             this.commitRequest = commitRequest;
         }
@@ -426,8 +447,7 @@ public class FDBClientLogEvents {
 
         @Override
         public String toString() {
-            return new StringJoiner(", ", getClass().getSimpleName() + "[", "]")
-                    .add("startTimestamp=" + getStartTimestampString())
+            return toStringBase()
                     .add("errorCode=" + errorCode)
                     .add("commitRequest=" + commitRequest)
                     .toString();
@@ -501,13 +521,18 @@ public class FDBClientLogEvents {
         @Nonnull
         private final Mutation[] mutations;
         private final long snapshotVersion;
+        private final boolean reportConflictingKeys;
 
-        public CommitRequest(@Nonnull Range[] readConflictRanges, @Nonnull Range[] writeConflictRanges,
-                             @Nonnull Mutation[] mutations, long snapshotVersion) {
+        public CommitRequest(@Nonnull Range[] readConflictRanges,
+                             @Nonnull Range[] writeConflictRanges,
+                             @Nonnull Mutation[] mutations,
+                             long snapshotVersion,
+                             boolean reportConflictingKeys) {
             this.readConflictRanges = readConflictRanges;
             this.writeConflictRanges = writeConflictRanges;
             this.mutations = mutations;
             this.snapshotVersion = snapshotVersion;
+            this.reportConflictingKeys = reportConflictingKeys;
         }
 
         @Nonnull
@@ -529,6 +554,10 @@ public class FDBClientLogEvents {
             return snapshotVersion;
         }
 
+        public boolean isReportConflictingKeys() {
+            return reportConflictingKeys;
+        }
+
         @Override
         public String toString() {
             return new StringJoiner(", ", CommitRequest.class.getSimpleName() + "[", "]")
@@ -536,6 +565,7 @@ public class FDBClientLogEvents {
                     .add("writeConflictRanges=" + Arrays.toString(writeConflictRanges))
                     .add("mutations=" + Arrays.toString(mutations))
                     .add("snapshotVersion=" + snapshotVersion)
+                    .add("reportConflictingKeys=" + reportConflictingKeys)
                     .toString();
         }
     }
@@ -554,29 +584,42 @@ public class FDBClientLogEvents {
         }
         return AsyncUtil.whileTrue(() -> {
             final int type = buffer.getInt();
+            final double startTime = buffer.getDouble();
+            String dcId = "";
+            if (protocolVersion >= PROTOCOL_VERSION_6_3) {
+                int dcIdLength = buffer.getInt();
+                if (dcIdLength > 0) {
+                    byte[] dcIdBytes = new byte[dcIdLength];
+                    buffer.get(dcIdBytes);
+                    dcId = new String(dcIdBytes, StandardCharsets.UTF_8);
+                }
+            }
             final Event event;
             switch (type) {
                 case GET_VERSION_LATENCY:
-                    event = new EventGetVersion(buffer.getDouble(), buffer.getDouble(),
-                            protocolVersion < PROTOCOL_VERSION_6_2 ? 0 : buffer.getInt());
+                    event = new EventGetVersion(startTime, dcId, buffer.getDouble(),
+                            protocolVersion < PROTOCOL_VERSION_6_2 ? 0 : buffer.getInt(),
+                            protocolVersion < PROTOCOL_VERSION_6_3 ? 0L : buffer.getLong());
                     break;
                 case GET_LATENCY:
-                    event = new EventGet(buffer.getDouble(), buffer.getDouble(), buffer.getInt(), deserializeByteArray(buffer));
+                    event = new EventGet(startTime, dcId, buffer.getDouble(), buffer.getInt(), deserializeByteArray(buffer));
                     break;
                 case GET_RANGE_LATENCY:
-                    event = new EventGetRange(buffer.getDouble(), buffer.getDouble(), buffer.getInt(), deserializeRange(buffer));
+                    event = new EventGetRange(startTime, dcId, buffer.getDouble(), buffer.getInt(), deserializeRange(buffer));
                     break;
                 case COMMIT_LATENCY:
-                    event = new EventCommit(buffer.getDouble(), buffer.getDouble(), buffer.getInt(), buffer.getInt(), deserializeCommit(buffer));
+                    event = new EventCommit(startTime, dcId, buffer.getDouble(), buffer.getInt(), buffer.getInt(),
+                            protocolVersion < PROTOCOL_VERSION_6_3 ? 0L : buffer.getLong(),
+                            deserializeCommit(protocolVersion, buffer));
                     break;
                 case ERROR_GET:
-                    event = new EventGetError(buffer.getDouble(), buffer.getInt(), deserializeByteArray(buffer));
+                    event = new EventGetError(startTime, dcId, buffer.getInt(), deserializeByteArray(buffer));
                     break;
                 case ERROR_GET_RANGE:
-                    event = new EventGetRangeError(buffer.getDouble(), buffer.getInt(), deserializeRange(buffer));
+                    event = new EventGetRangeError(startTime, dcId, buffer.getInt(), deserializeRange(buffer));
                     break;
                 case ERROR_COMMIT:
-                    event = new EventCommitError(buffer.getDouble(), buffer.getInt(), deserializeCommit(buffer));
+                    event = new EventCommitError(startTime, dcId, buffer.getInt(), deserializeCommit(protocolVersion, buffer));
                     break;
                 default:
                     throw new IllegalStateException("Unknown event type: " + type);
@@ -624,9 +667,13 @@ public class FDBClientLogEvents {
     }
 
     @Nonnull
-    protected static CommitRequest deserializeCommit(@Nonnull ByteBuffer buffer) {
-        return new CommitRequest(deserializeRangeArray(buffer), deserializeRangeArray(buffer),
-                deserializeMutationArray(buffer), buffer.getLong());
+    protected static CommitRequest deserializeCommit(long protocolVersion, @Nonnull ByteBuffer buffer) {
+        return new CommitRequest(
+                deserializeRangeArray(buffer),
+                deserializeRangeArray(buffer),
+                deserializeMutationArray(buffer),
+                buffer.getLong(),
+                protocolVersion >= PROTOCOL_VERSION_6_3 && (buffer.get() != 0));
     }
 
     protected static class EventDeserializer implements AsyncConsumer<KeyValue> {
diff --git a/fdb-extensions/src/test/java/com/apple/foundationdb/clientlog/ClientLogEventCounterTest.java b/fdb-extensions/src/test/java/com/apple/foundationdb/clientlog/ClientLogEventCounterTest.java
index 880f0251..e4cd261a 100644
--- a/fdb-extensions/src/test/java/com/apple/foundationdb/clientlog/ClientLogEventCounterTest.java
+++ b/fdb-extensions/src/test/java/com/apple/foundationdb/clientlog/ClientLogEventCounterTest.java
@@ -53,7 +53,7 @@ class ClientLogEventCounterTest {
             countReads = "READ".equals(arg) || "BOTH".equals(arg);
             countWrites = "WRITE".equals(arg) || "BOTH".equals(arg);
         }
-        FDB fdb = FDB.selectAPIVersion(600);
+        FDB fdb = FDB.selectAPIVersion(630);
         Database database = fdb.open(cluster);
         Executor executor = database.getExecutor();
         TupleKeyCountTree root = new TupleKeyCountTree();
diff --git a/fdb-extensions/src/test/java/com/apple/foundationdb/clientlog/DatabaseClientLogEventsTest.java b/fdb-extensions/src/test/java/com/apple/foundationdb/clientlog/DatabaseClientLogEventsTest.java
index 83ef819c..f505b267 100644
--- a/fdb-extensions/src/test/java/com/apple/foundationdb/clientlog/DatabaseClientLogEventsTest.java
+++ b/fdb-extensions/src/test/java/com/apple/foundationdb/clientlog/DatabaseClientLogEventsTest.java
@@ -44,7 +44,7 @@ class DatabaseClientLogEventsTest {
         if (args.length > 2) {
             end = ZonedDateTime.parse(args[2]).toInstant();
         }
-        FDB fdb = FDB.selectAPIVersion(600);
+        FDB fdb = FDB.selectAPIVersion(630);
         Database database = fdb.open(cluster);
         Executor executor = database.getExecutor();
         DatabaseClientLogEvents.EventConsumer consumer = (tr, event) -> {
['fdb-extensions/src/test/java/com/apple/foundationdb/clientlog/ClientLogEventCounterTest.java', 'fdb-extensions/src/test/java/com/apple/foundationdb/clientlog/DatabaseClientLogEventsTest.java', 'fdb-extensions/src/main/java/com/apple/foundationdb/clientlog/FDBClientLogEvents.java']