add exception message in reconnect log (#2)

logproxy-client/src/main/java/com/oceanbase/clogproxy/client/config/ObReaderConfig.java

@@ -16,10 +16,14 @@ import com.oceanbase.clogproxy.common.config.ShareConf;
 import com.oceanbase.clogproxy.common.packet.LogType;
 import com.oceanbase.clogproxy.common.util.CryptoUtil;
 import com.oceanbase.clogproxy.common.util.Hex;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import java.util.Map;
 
 public class ObReaderConfig extends AbstractConnectionConfig {
+    private static final Logger logger = LoggerFactory.getLogger(ObReaderConfig.class);
+
     private static final ConfigItem<String> RS_LIST = new ConfigItem<>("rootserver_list", "");
     private static final ConfigItem<String> CLUSTER_USER = new ConfigItem<>("cluster_user", "");
     private static final ConfigItem<String> CLUSTER_PASSWORD = new ConfigItem<>("cluster_password", "");
@@ -50,6 +54,7 @@ public class ObReaderConfig extends AbstractConnectionConfig {
             }
             return true;
         } catch (IllegalArgumentException e) {
+            logger.error(e.getMessage());
             return false;
         }
     }

logproxy-client/src/main/java/com/oceanbase/clogproxy/client/connection/ClientStream.java

@@ -159,7 +159,7 @@ public class ClientStream {
                         return;
 
                     } catch (Exception e) {
-                        // if exception occured, we exit
+                        // if exception occurred, we exit
                         triggerStop();
                         triggerException(new LogProxyClientException(ErrorCode.E_USER, e));
                         return;
@@ -221,7 +221,7 @@ public class ClientStream {
                 return ReconnectState.RETRY;
 
             } catch (Exception e) {
-                logger.error("failed to reconnect, retry count: {}, max: {}", ++retryTimes, ClientConf.MAX_RECONNECT_TIMES);
+                logger.error("failed to reconnect, retry count: {}, max: {}, message: {}", ++retryTimes, ClientConf.MAX_RECONNECT_TIMES, e.getMessage());
                 // not success, retry next time
                 reconnect.set(true);
                 return ReconnectState.RETRY;