c10d/TCPStore: better logs on remote shutdown (#153586)

This makes it more obvious what's going on when TCPStore shuts down while waiting on a remote key and also shows the remote address.

Test plan:

```
[W514 18:33:36.536327028 TCPStore.cpp:138] [c10d] recvValueWithTimeout failed on SocketImpl(fd=3, addr=[localhost]:34658, remote=[localhost]:1234): Failed to recv, got 0 bytes. Connection was likely closed. Did the remote server shutdown or crash?
```

```py
import os
rank = int(os.environ["RANK"])

import time
from torch import distributed as dist

store = dist.TCPStore(
    host_name="localhost",
    port=1234,
    is_master=(rank == 0),
    wait_for_workers=False,
)

time.sleep(1)

print("starting")

if rank != 0:
    store.get("foo")
else:
    time.sleep(1)

print("done")
```

Pull Request resolved: https://github.com/pytorch/pytorch/pull/153586
Approved by: https://github.com/XilunWu

torch/csrc/distributed/c10d/TCPStore.cpp

@@ -128,9 +128,17 @@ class TCPClient {
   }
   template <typename T>
   std::optional<T> receiveValueWithTimeout(std::chrono::milliseconds timeout) {
-    if (!socket_.waitForInput(timeout))
+    if (!socket_.waitForInput(timeout)) {
       return {};
+    }
+
+    try {
       return tcputil::recvValue<T>(socket_.handle());
+    } catch (const std::exception& e) {
+      C10D_WARNING(
+          "recvValueWithTimeout failed on {}: {}", socket_.repr(), e.what());
+      throw;
+    }
   }
   void setTimeout(std::chrono::milliseconds value);
 

torch/csrc/distributed/c10d/Utils.hpp

@@ -653,7 +653,11 @@ void sendBytes(
     SYSCHECK_ERR_RETURN_NEG1(
         bytesSent = ::send(socket, currentBytes, bytesToSend, flags))
     if (bytesSent == 0) {
-      C10_THROW_ERROR(DistNetworkError, "failed to send, sent 0 bytes");
+      C10_THROW_ERROR(
+          DistNetworkError,
+          "Failed to send, sent 0 bytes. "
+          "Connection was likely closed. "
+          "Did the remote server shutdown or crash?");
     }
 
     bytesToSend -= bytesSent;
@@ -675,7 +679,11 @@ void recvBytes(int socket, T* buffer, size_t length) {
     SYSCHECK_ERR_RETURN_NEG1(
         bytesReceived = recv(socket, currentBytes, bytesToReceive, 0))
     if (bytesReceived == 0) {
-      C10_THROW_ERROR(DistNetworkError, "failed to recv, got 0 bytes");
+      C10_THROW_ERROR(
+          DistNetworkError,
+          "Failed to recv, got 0 bytes. "
+          "Connection was likely closed. "
+          "Did the remote server shutdown or crash?");
     }
 
     bytesToReceive -= bytesReceived;