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Posted to dev@flink.apache.org by "weiyunqing (JIRA)" <ji...@apache.org> on 2019/08/07 08:52:00 UTC

[jira] [Created] (FLINK-13612) 高并发初始化FlinkKafkaProducer011时StateDescriptor加载报错NPE

weiyunqing created FLINK-13612:
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             Summary: 高并发初始化FlinkKafkaProducer011时StateDescriptor加载报错NPE
                 Key: FLINK-13612
                 URL: https://issues.apache.org/jira/browse/FLINK-13612
             Project: Flink
          Issue Type: Bug
          Components: Connectors / Kafka
    Affects Versions: 1.7.2, 1.6.4, 1.6.3, shaded-7.0
            Reporter: weiyunqing
             Fix For: 1.7.2, 1.6.4, 1.6.3, shaded-7.0


org.apache.flink.streaming.connectors.kafka.FlinkKafkaProducer011#NEXT_TRANSACTIONAL_ID_HINT_DESCRIPTOR

FlinkKafkaProducer011中的NEXT_TRANSACTIONAL_ID_HINT_DESCRIPTOR变量state使用了static修饰

在执行initializeSerializerUnlessSet方法的时候高并发情况下会出现NPE异常

 

java.lang.NullPointerException at org.apache.flink.api.common.state.StateDescriptor.initializeSerializerUnlessSet(StateDescriptor.java:264) at org.apache.flink.runtime.state.DefaultOperatorStateBackend.getListState(DefaultOperatorStateBackend.java:730) at org.apache.flink.runtime.state.DefaultOperatorStateBackend.getUnionListState(DefaultOperatorStateBackend.java:271) at org.apache.flink.streaming.connectors.kafka.FlinkKafkaProducer011.initializeState(FlinkKafkaProducer011.java:837) at org.apache.flink.streaming.util.functions.StreamingFunctionUtils.tryRestoreFunction(StreamingFunctionUtils.java:178) at org.apache.flink.streaming.util.functions.StreamingFunctionUtils.restoreFunctionState(StreamingFunctionUtils.java:160) at org.apache.flink.streaming.api.operators.AbstractUdfStreamOperator.initializeState(AbstractUdfStreamOperator.java:96) at org.apache.flink.streaming.api.operators.AbstractStreamOperator.initializeState(AbstractStreamOperator.java:281) at org.apache.flink.streaming.runtime.tasks.StreamTask.initializeState(StreamTask.java:730) at org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:295) at org.apache.flink.runtime.taskmanager.Task.run(Task.java:720) at java.lang.Thread.run(Thread.java:748)



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