msg: decrease the level to print the sending msgs from the protocol

We have hitting the issue, which is the messages are stuck in the
sender queue, many times. We just suspect it's a bug of the protocol
code and we need to know exactly whether the msgs are sent out or
not.

Related: https://tracker.ceph.com/issues/65309
Signed-off-by: Xiubo Li <[email protected]>

Author: lxbsz

src/msg/async/ProtocolV1.cc

@@ -1173,8 +1173,8 @@ ssize_t ProtocolV1::write_message(Message *m, ceph::buffer::list &bl, bool more)
   }
 
   m->trace.event("async writing message");
-  ldout(cct, 20) << __func__ << " sending " << m->get_seq() << " " << m
-                 << dendl;
+  ldout(cct, 2) << __func__ << " sending message m=" << m
+                << " seq=" << m->get_seq() << " " << *m << dendl;
   ssize_t total_send_size = connection->outgoing_bl.length();
   ssize_t rc = connection->_try_send(more);
   if (rc < 0) {

src/msg/async/ProtocolV2.cc

@@ -551,7 +551,7 @@ ssize_t ProtocolV2::write_message(Message *m, bool more) {
     return -EILSEQ;
   }
 
-  ldout(cct, 5) << __func__ << " sending message m=" << m
+  ldout(cct, 2) << __func__ << " sending message m=" << m
                 << " seq=" << m->get_seq() << " " << *m << dendl;
 
   m->trace.event("async writing message");