实时计算 Flink版重启的相关内容

问答 2023-02-27 来自：开发者社区

cdc程序意外挂掉mysql删除的数据在flink cdc程序重启后能否在hudi同步删除？

前提：flink cdc读取mysql的binlog数据写入hudi,且已经设置了checkpoint和StateBackend 问题是：如果cdc程序意外挂掉，在cdc挂掉的这段时间mysql删除的数据在flink cdc程序重启后能否在hudi同步删除？如果能删除怎么实现？

问答 2023-02-14 来自：开发者社区

我现在有一个flink任务，部署在k8s上，老是报oom kill。并且任务重启之后报akka fr

我现在有一个flink任务，部署在k8s上，老是报oom kill。并且任务重启之后报akka frame size不够，请问这种是由于增量checkpoint保存的文件路径过多导致的吗？还是啥原因啊？目前TM 4g大小，数据量不大，资源我感觉是很足够的，但是还是oom kill了，应该是overhead 内存不够导致的，但是不知道怎么解决了

问答 2023-01-16 来自：开发者社区

我想问问：flink sql提交的任务如何持久化，即当flink集群遭遇异常重启后，能够自动按c

我想问问：flink sql提交的任务如何持久化，即当flink集群遭遇异常重启后，能够自动按checkpoint或savepoint恢复以前的执行任务？flink配置能实现吗？

问答 2023-01-15 来自：开发者社区

对于Flink CDC，从丢失时刻的checkpoint重启任务，丢失的数据又获取到了。有排查方向吗

目前生产flink14+cdc2.3+mongo4，使用datastream api的方式进行整库订阅，出现数据丢失的情况。在日志中没有任何报错异常。但是我发现数据丢失后，从丢失时刻的checkpoint重启任务，丢失的数据又获取到了。也尝试调了poll.await.time.ms、heartbeat.interval.ms等参数，没有效果。请问有什么排查方向吗?

问答 2023-01-15 来自：开发者社区

对于Flink CDC，mysql分库分表入iceberg的V2表，任务重启时为啥历史数据重复写入？

对于Flink CDC，mysql分库分表入iceberg的V2表，在任务重启时为啥历史数据会重复写入，并且时区有的正确有的-8小时，有大佬知道怎么解决吗

问答 2023-01-08 来自：开发者社区

flink cdc运行了一段时间，一直报异常重启，有什么好的解决方案吗？

flink cdc，运行了一段时间，上游数据某个字段格式出现不匹配记录 sink不到下游，一直报异常重启，手动将上游该条记录删除后，问题没有解决，然后checkpoint 成功失败都有。这种情况有什么好的解决方案吗，还是直接cancel 然后重启这个job 呢？

问答 2023-01-08 来自：开发者社区

当重启flink后无法恢复flink sql计划任务是什么原因呢？

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实时计算Flink版

阿里云实时计算Flink版(Alibaba Cloud Realtime Compute)，完全兼容开源的Apache Flink，比开源性能提升2～3倍，提供了完整的告警、监控、日志的解决方案、提升开发效率且无运维成本，并有社区专家提供技术支持。

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MySQL 到 Hologres

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功能对比

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