Consumer failed to start in 60000 milliseconds; does the task executor have enough threads to support the container concurrency?

logger error:

Consumer failed to start in 60000 milliseconds; does the task executor have enough threads to support the container concurrency?

How can I resolve it?

Thanks a lot.

I attempt to change my config like this:

@Configurationpublic class RabbitMQConfig {

private final SimpleRabbitListenerContainerFactory simpleRabbitListenerContainerFactory;private final RabbitTemplate mqTemplate;@Autowiredpublic RabbitMQConfig(SimpleRabbitListenerContainerFactory simpleRabbitListenerContainerFactory,                      RabbitTemplate mqTemplate) {    this.simpleRabbitListenerContainerFactory = simpleRabbitListenerContainerFactory;    this.mqTemplate = mqTemplate;}@PostConstructpublic void init() {    simpleRabbitListenerContainerFactory.setMessageConverter(new Jackson2JsonMessageConverter());    simpleRabbitListenerContainerFactory.setTaskExecutor(Executors.newCachedThreadPool());    simpleRabbitListenerContainerFactory.setContainerConfigurer(c -> {        c.setAutoDeclare(false);        c.setConsumerStartTimeout(100000L);    });    mqTemplate.setMessageConverter(new Jackson2JsonMessageConverter());}@Beanpublic Queue dlQueue() {    return new Queue(RabbitMQConstant.DEAD_LETTER_Q, true, false, false);}@Beanpublic TopicExchange dlExchange() {    return new TopicExchange(RabbitMQConstant.DEAD_LETTER_EXCHANGE, true, false);}@Beanpublic Binding dlxBinding() {    return BindingBuilder.bind(dlQueue()).to(dlExchange()).with(RabbitMQConstant.ROUTE_KEY);}

}

bug the log also exist and the spring boot start slow.

2020-02-14 12:29:14.861 [main] ERROR org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer [,,,,] hia-api - Consumer failed to start in 100000 milliseconds; does the task executor have enough threads to support the container concurrency?2020-02-14 12:30:54.870 [main] ERROR org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer [,,,,] hia-api - Consumer failed to start in 100000 milliseconds; does the task executor have enough threads to support the container concurrency?2020-02-14 12:32:34.872 [main] ERROR org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer [,,,,] hia-api - Consumer failed to start in 100000 milliseconds; does the task executor have enough threads to support the container concurrency?2020-02-14 12:34:14.873 [main] ERROR org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer [,,,,] hia-api - Consumer failed to start in 100000 milliseconds; does the task executor have enough threads to support the container concurrency?2020-02-14 12:35:54.877 [main] ERROR org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer [,,,,] hia-api - Consumer failed to start in 100000 milliseconds; does the task executor have enough threads to support the container concurrency?