fix some bugs and add time trace

src/main/java/com/alipay/oceanbase/rpc/bolt/protocol/ObTablePacket.java

@@ -17,6 +17,7 @@
 
 package com.alipay.oceanbase.rpc.bolt.protocol;
 
+import com.alipay.oceanbase.rpc.bolt.transport.ObTableTimeTrace;
 import com.alipay.oceanbase.rpc.protocol.packet.ObRpcPacketHeader;
 import com.alipay.remoting.CommandCode;
 import com.alipay.remoting.InvokeContext;
@@ -43,6 +44,9 @@ public class ObTablePacket implements RemotingCommand {
     private int                 transportCode;
     private String              message;
     private Throwable           cause;
+
+    // 时间追踪
+    private ObTableTimeTrace    timeTrace;
 
     /**
      * Decode packet header.
@@ -205,6 +209,20 @@ public void setCause(Throwable cause) {
         this.cause = cause;
     }
 
+    /*
+     * Get time trace.
+     */
+    public ObTableTimeTrace getTimeTrace() {
+        return timeTrace;
+    }
+
+    /*
+     * Set time trace.
+     */
+    public void setTimeTrace(ObTableTimeTrace timeTrace) {
+        this.timeTrace = timeTrace;
+    }
+
     // TODO useless for now
 
     /*

src/main/java/com/alipay/oceanbase/rpc/bolt/protocol/ObTablePacketEncoder.java

@@ -17,6 +17,7 @@
 
 package com.alipay.oceanbase.rpc.bolt.protocol;
 
+import com.alipay.oceanbase.rpc.bolt.transport.ObTableTimeTrace;
 import com.alipay.oceanbase.rpc.util.Serialization;
 import com.alipay.oceanbase.rpc.util.TableClientLoggerFactory;
 import com.alipay.remoting.CommandEncoder;
@@ -48,6 +49,12 @@ public void encode(ChannelHandlerContext ctx, Serializable msg, ByteBuf out) thr
                  * -----------------------------------
                  */
                 ObTablePacket cmd = (ObTablePacket) msg;
+
+                // Record when EventLoop starts encoding (reflects queue wait time)
+                ObTableTimeTrace timeTrace = cmd.getTimeTrace();
+                if (timeTrace != null) {
+                    timeTrace.markNettyEncodeStart();
+                }
 
                 // 1. header
                 out.writeBytes(ObTableProtocol.MAGIC_HEADER_FLAG);
@@ -57,6 +64,11 @@ public void encode(ChannelHandlerContext ctx, Serializable msg, ByteBuf out) thr
 
                 // 2. payload
                 out.writeBytes(cmd.getPacketContent());
+
+                // Record when encoding is complete
+                if (timeTrace != null) {
+                    timeTrace.markNettyEncodeEnd();
+                }
 
             } else {
                 String warnMsg = "msg type [" + msg.getClass() + "] is not subclass of ObCommand";

src/main/java/com/alipay/oceanbase/rpc/bolt/transport/ObClientFuture.java

@@ -43,13 +43,27 @@ public class ObClientFuture implements InvokeFuture {
     private static int      BY_BACKGROUND = 2;
 
     private AtomicInteger   releaseFlag   = new AtomicInteger(INIT);
+
+    // 响应接收时间
+    private long            responseReceivedTime;
+
+    // 时间追踪
+    private ObTableTimeTrace timeTrace;
 
     /*
      * Ob client future.
      */
     public ObClientFuture(int channelId) {
         this.channelId = channelId;
     }
+
+    /*
+     * Ob client future with time trace.
+     */
+    public ObClientFuture(int channelId, ObTableTimeTrace timeTrace) {
+        this.channelId = channelId;
+        this.timeTrace = timeTrace;
+    }
 
     /*
      * Wait response.
@@ -87,6 +101,12 @@ public RemotingCommand waitResponse() throws InterruptedException {
      */
     @Override
     public void putResponse(RemotingCommand response) {
+        // 记录响应接收时间
+        this.responseReceivedTime = System.currentTimeMillis();
+        // 更新时间追踪
+        if (timeTrace != null) {
+            timeTrace.markResponseReceived();
+        }
         this.response = response;
         waiter.countDown();
         if (!releaseFlag.compareAndSet(INIT, BY_WORKER)) {
@@ -96,6 +116,27 @@ public void putResponse(RemotingCommand response) {
         }
     }
 
+    /*
+     * Get response received time.
+     */
+    public long getResponseReceivedTime() {
+        return responseReceivedTime;
+    }
+
+    /*
+     * Get time trace.
+     */
+    public ObTableTimeTrace getTimeTrace() {
+        return timeTrace;
+    }
+
+    /*
+     * Set time trace.
+     */
+    public void setTimeTrace(ObTableTimeTrace timeTrace) {
+        this.timeTrace = timeTrace;
+    }
+
     /*
      * Invoke id.
      */

src/main/java/com/alipay/oceanbase/rpc/bolt/transport/ObTableConnection.java

@@ -96,6 +96,10 @@ public void init() throws Exception {
     }
 
     private boolean connect() throws Exception {
+        return connect(obTable.getObTableConnectTimeout());
+    }
+
+    private boolean connect(int connectTimeoutMs) throws Exception {
         if (checkAvailable()) { // double check status available
             return false;
         }
@@ -106,7 +110,7 @@ private boolean connect() throws Exception {
         for (; tries < maxTryTimes; tries++) {
             try {
                 connection = obTable.getConnectionFactory().createConnection(obTable.getIp(),
-                    obTable.getPort(), obTable.getObTableConnectTimeout());
+                    obTable.getPort(), connectTimeoutMs);
                 break;
             } catch (Exception e) {
                 cause = e;
@@ -243,29 +247,29 @@ public void checkStatus() throws Exception {
         if (connection.getChannel() == null || !connection.getChannel().isActive()) {
             reconnect("Check connection failed for address: " + connection.getUrl());
         }
-        if (!connection.getChannel().isWritable()) {
-            LOGGER.warn("The connection might be write overflow : " + connection.getUrl());
-            // Wait some interval for the case when a big package is blocking the buffer but server is ok.
-            // Don't bother to call flush() here as we invoke writeAndFlush() when send request.
-            Thread.sleep(obTable.getNettyBlockingWaitInterval());
-            if (!connection.getChannel().isWritable()) {
-                throw new ObTableConnectionUnWritableException(
-                    "Check connection failed for address: " + connection.getUrl()
-                            + ", maybe write overflow!");
-            }
-        }
     }
 
     public void reConnectAndLogin(String msg) throws ObTableException {
+        reConnectAndLogin(msg, obTable.getObTableConnectTimeout());
+    }
+
+    /**
+     * Reconnect and login with a specified connect timeout.
+     * This is useful for background tasks that need a longer timeout to ensure connection success.
+     *
+     * @param msg the reconnect reason
+     * @param connectTimeoutMs the connection timeout in milliseconds
+     */
+    public void reConnectAndLogin(String msg, int connectTimeoutMs) throws ObTableException {
         try {
             // 1. check the connection is available, force to close it
             if (checkAvailable()) {
                 LOGGER.info("The connection would be closed and reconnected is: "
                             + connection.getUrl());
                 close();
             }
-            // 2. reconnect
-            reconnect(msg);
+            // 2. reconnect with specified timeout
+            reconnect(msg, connectTimeoutMs);
         } catch (ConnectException ex) {
             // cannot connect to ob server, need refresh table location
             throw new ObTableServerConnectException(ex);
@@ -286,9 +290,22 @@ public void reConnectAndLogin(String msg) throws ObTableException {
      *
      */
     private void reconnect(String msg) throws Exception {
+        reconnect(msg, obTable.getObTableConnectTimeout());
+    }
+
+    /**
+     * Reconnect current connection and login with specified timeout
+     *
+     * @param msg the reconnect reason
+     * @param connectTimeoutMs the connection timeout in milliseconds
+     * @exception Exception if connect successfully or connection already reconnected by others
+     *                      throw exception if connect failed
+     *
+     */
+    private void reconnect(String msg, int connectTimeoutMs) throws Exception {
         if (isReConnecting.compareAndSet(false, true)) {
             try {
-                if (connect()) {
+                if (connect(connectTimeoutMs)) {
                     LOGGER.info("reconnect success. reconnect reason: [{}]", msg);
                 } else {
                     LOGGER.info(