Inform users that peers will not discover and communicate with one an…

…other until the router is started (#440) * Inform users that peers will not discover and communicate with one another until the router is started Signed-off-by: Yadunund <[email protected]> * Address feedback Signed-off-by: Yadunund <[email protected]> --------- Signed-off-by: Yadunund <[email protected]> (cherry picked from commit eccec54)
ros2 · Feb 2, 2025 · 887f4b5 · 887f4b5
1 parent 757dbd4
commit 887f4b5
Showing 1 changed file with 9 additions and 0 deletions.
diff --git a/rmw_zenoh_cpp/src/detail/rmw_context_impl_s.cpp b/rmw_zenoh_cpp/src/detail/rmw_context_impl_s.cpp
@@ -111,6 +111,15 @@ class rmw_context_impl_s::Data final : public std::enable_shared_from_this<Data>
             "Have you started a router with `ros2 run rmw_zenoh_cpp rmw_zenohd`?");
         }
         if (++connection_attempts >= configured_connection_attempts.value()) {
+          RMW_ZENOH_LOG_WARN_NAMED(
+            "rmw_zenoh_cpp",
+            "Unable to connect to a Zenoh router after %zu attempt(s). "
+            "Please ensure that a Zenoh router is running and can be reached. "
+            "You may increase the number of attempts to check for a router by "
+            "setting the ZENOH_ROUTER_CHECK_ATTEMPTS environment variable. "
+            "Proceeding with initialization but other peers will not discover "
+            "or receive data from peers in this session until a router is started.",
+            configured_connection_attempts.value());
           break;
         }
         std::this_thread::sleep_for(sleep_time);