ifplusor commented on issue #205: push-consumer start failed and coredump when one namesrv host cannot be resolve URL: https://github.com/apache/rocketmq-client-cpp/issues/205#issuecomment-574019024 DefaultMQPushConsumer::start() will call MQClientFactory::updateTopicRouteInfoFromNameServer() -> ... -> TcpRemotingClient::invokeSync() -> ... -> TcpTransport::connect() -> TcpTransport::getInetAddr(). If host cannot be resolved, evutil_getaddrinfo() will return error, then throw MQClientException. In call chain, nobody catch the exception.
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