flink1.12.2??????1.13.5??flink sql??????savepoint????

flink1.12.2??1.13.5??flink sql??savepoint switched from INITIALIZING to FAILED with failure cause: java.lang.Exception: Exception while creating StreamOperatorStateContext. at org.apache.flink.streaming.api.operators.StreamTaskStateInitializerImpl.streamOperatorStateCo

flink是否支持 http请求并返回json数据

业务需求：通过http请求方式将参数传给flink,将参数带入flink程序再把结果以json的形式返回。请问一下以这种方式实时计算，flink是否支持？ flink版本:1.12.1