[英]Flink State Schema Migration
我在使用MemoryStateBackend的獨立群集上有一個flink流應用程序。 Kryo的TaggedFieldSerializer被用作默認的序列化程序。
當我更改狀態的架構並重新部署應用程序時,出現以下異常
Caused by: org.apache.flink.util.StateMigrationException: State migration isn't supported, yet.
at org.apache.flink.runtime.state.heap.HeapKeyedStateBackend.tryRegisterStateTable(HeapKeyedStateBackend.java:209)
at org.apache.flink.runtime.state.heap.HeapKeyedStateBackend.tryRegisterStateTable(HeapKeyedStateBackend.java:142)
at org.apache.flink.runtime.state.heap.HeapKeyedStateBackend.createValueState(HeapKeyedStateBackend.java:234)
at org.apache.flink.runtime.state.AbstractKeyedStateBackend$1.createValueState(AbstractKeyedStateBackend.java:315)
at org.apache.flink.api.common.state.ValueStateDescriptor.bind(ValueStateDescriptor.java:128)
at org.apache.flink.api.common.state.ValueStateDescriptor.bind(ValueStateDescriptor.java:35)
at org.apache.flink.runtime.state.AbstractKeyedStateBackend.getOrCreateKeyedState(AbstractKeyedStateBackend.java:312)
at org.apache.flink.runtime.state.AbstractKeyedStateBackend.getPartitionedState(AbstractKeyedStateBackend.java:392)
at org.apache.flink.runtime.state.DefaultKeyedStateStore.getPartitionedState(DefaultKeyedStateStore.java:124)
at org.apache.flink.runtime.state.DefaultKeyedStateStore.getState(DefaultKeyedStateStore.java:60)
如果有人為我提供解決方法,或者我應該使用FsStateBackend解決此問題,這將非常有用。
PS:如果我想在獨立群集上運行的flink應用程序上使用S3上的FsStateBackend,則必須進行哪些配置更改。
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