update

be/src/common/config.cpp

@@ -67,9 +67,9 @@ DEFINE_mString(public_access_ip, "");
 // the number of bthreads for brpc, the default value is set to -1,
 // which means the number of bthreads is #cpu-cores
 DEFINE_Int32(brpc_num_threads, "256");
-// the time of brpc server keep idle connection, the default value is set to -1,
-// which means never close idle connection
-DEFINE_Int32(brpc_idle_timeout_sec, "1");
+// the time of brpc server keep idle connection, setting this value too small may cause rpc between backends to fail,
+// the default value is set to -1, which means never close idle connection.
+DEFINE_Int32(brpc_idle_timeout_sec, "-1");
 
 // Declare a selection strategy for those servers have many ips.
 // Note that there should at most one ip match this list.