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Inform users that peers will not discover and communicate with one another until the router is started (backport #440) #444

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Feb 2, 2025
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Inform users that peers will not discover and communicate with one another until the router is started (backport #440) #444

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9 changes: 9 additions & 0 deletions rmw_zenoh_cpp/src/detail/rmw_context_impl_s.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -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);
Expand Down