diff --git a/src/messenger.cpp b/src/messenger.cpp
index dad170f4..28ea48c6 100644
--- a/src/messenger.cpp
+++ b/src/messenger.cpp
@@ -147,13 +147,13 @@ void osd_messenger_t::parse_config(const json11::Json & config)
         this->rdma_max_sge = 128;
     this->rdma_max_send = config["rdma_max_send"].uint64_value();
     if (!this->rdma_max_send)
-        this->rdma_max_send = 32;
+        this->rdma_max_send = 1;
     this->rdma_max_recv = config["rdma_max_recv"].uint64_value();
     if (!this->rdma_max_recv)
-        this->rdma_max_recv = 8;
+        this->rdma_max_recv = 128;
     this->rdma_max_msg = config["rdma_max_msg"].uint64_value();
     if (!this->rdma_max_msg || this->rdma_max_msg > 128*1024*1024)
-        this->rdma_max_msg = 1024*1024;
+        this->rdma_max_msg = 129*1024;
 #endif
     this->receive_buffer_size = (uint32_t)config["tcp_header_buffer_size"].uint64_value();
     if (!this->receive_buffer_size || this->receive_buffer_size > 1024*1024*1024)
diff --git a/src/messenger.h b/src/messenger.h
index 09d1e0f7..fcee30c9 100644
--- a/src/messenger.h
+++ b/src/messenger.h
@@ -133,7 +133,7 @@ protected:
     std::string rdma_device;
     uint64_t rdma_port_num = 1, rdma_gid_index = 0, rdma_mtu = 0;
     msgr_rdma_context_t *rdma_context = NULL;
-    uint64_t rdma_max_sge = 0, rdma_max_send = 0, rdma_max_recv = 8;
+    uint64_t rdma_max_sge = 0, rdma_max_send = 0, rdma_max_recv = 0;
     uint64_t rdma_max_msg = 0;
 #endif