添加状态后端
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@ -140,6 +140,44 @@ Flink 为算子状态提供三种基本数据结构:
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# 状态后端实现
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StateBackend实现类图,在1.17版本中,部分状态后端已经过期,比如:~~MemoryStateBackend~~、~~RocksDBStateBackend~~、~~FsStateBackend~~等。
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![pic](https://pan.zeekling.cn//flink/basic/state/StateBackend_0002.png)
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去除掉已经过期的状态后端剩余的如下所示:
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![pic](https://pan.zeekling.cn//flink/basic/state/StateBackend_0003.png)
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## HashMapStateBackend
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## EmbeddedRocksDBStateBackend
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## ChangelogStateBackend
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## DeactivatedChangelogStateBackend
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# 常见报错
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## The maximum number of queued checkpoint requests exceeded
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