Use litePullConsumer model instead of default pull consumer.

[ShannonDing]

See description in RocketMQ,

 /**
 * @deprecated
 * Default pulling consumer.
 * This class will be removed in 2022, and a better implementation {@link DefaultLitePullConsumer} is recommend to use
 * in the scenario of actively pulling messages.
 */

the DefaultMQPullConsumer will be removed soon in the latest version. it is better to change the connect reader impl to DefaultLitePullConsumer API.

[ShannonDing]

refer to https://github.com/apache/rocketmq/blob/develop/client/src/main/java/org/apache/rocketmq/client/consumer/DefaultLitePullConsumer.java

[galaxy077]

i will solve it

[SteNicholas]

@yiduwangkai, thanks. I have assigned this ticket to you.