---

title: Apache Flink 检查点与保存点实践

keywords:

• Flink
• Checkpoint
• Savepoint
• state.backend
• checkpointing

description: 配置 Flink 检查点与保存点，提供 flink-conf 与 CLI 操作示例，保障状态一致性与回滚能力。

tags:

• Checkpoint
• Flink
• Savepoint
• checkpointing
• state.backend
• 后端
• 流处理

categories:

• 文章资讯
• 技术教程

---

Apache Flink 检查点与保存点实践

配置片段（flink-conf.yaml）

state.backend: filesystem
state.checkpoints.dir: file:///tmp/flink-checkpoints
execution.checkpointing.interval: 1m

CLI 操作

flink savepoint <jobId> file:///tmp/flink-savepoints
flink cancel -s file:///tmp/flink-savepoints/<savepointId> <jobId>

总结

合理的检查点与保存点策略可提升流作业的容错与演进能力。