[Improvement](rpc) set grpc channel's keepAliveTime and remove proxy … (#38381)

…on InterruptedExcep… (#37304)

## Proposed changes
1. set grpc channel's keepAliveTime
2. remove proxy on InterruptedException/TimeoutException to avoid
channel unavailable
pick from #37304
## Proposed changes

Issue Number: close #xxx

<!--Describe your changes.-->

fe/fe-common/src/main/java/org/apache/doris/common/Config.java

@@ -1464,6 +1464,14 @@ public class Config extends ConfigBase {
     @ConfField
     public static int grpc_threadmgr_threads_nums = 4096;
 
+    /**
+     * sets the time without read activity before sending a keepalive ping
+     * the smaller the value, the sooner the channel is unavailable, but it will increase network io
+     */
+    @ConfField(description = { "设置grpc连接发送 keepalive ping 之前没有数据传输的时间。",
+            "The time without grpc read activity before sending a keepalive ping" })
+    public static int grpc_keep_alive_second = 10;
+
     /**
      * Used to set minimal number of replication per tablet.
      */