实时计算 Flink版任务的相关内容

问答 2024-02-25 来自：开发者社区

Flink CDC里任务重启由rocksdb状态后端改为hashmap行不行呢？

文章 2024-02-25 来自：开发者社区

Flink报错问题之cdc任务报错如何解决

问题一：flink 1.11 cdc相关问题小白通过debezium将pgsql cdc数据同步至kafka之后，使用我们flink的sql client提交测试任务，但当kafka端cdc json数据一开始发送，任务即报错，通过web ui log查看界面发现错误日志如下，还请大佬帮忙分析，谢谢！CREATE TABLE pgsql_person_cdc( id BIGIN...

文章 2024-02-25 来自：开发者社区

Flink报错问题之提交flink sql任务报错如何解决

问题一：1.11.1 报OutOfMemoryError: Metaspace. 错误我是用flink sql,通过JDBC源读取mysql表数据，多次提交后，报OutOfMemoryError: Metaspace.错误，最后分析是mysql驱动包中有个守护线程一直在检测清理失效的connection，导致有线程一直存在，class资源无法释...

问答 2024-02-25 来自：开发者社区

Flink这个参数后 yarn.provided.lib.dirs 提交到yarn的任务报这个错？

Flink这个参数后 yarn.provided.lib.dirs 提交到yarn的任务报这个错？Failing this attempt.Diagnostics: [2024-02-22 11:44:37.726]Failed to download resource { { hdfs://hdfs-ha/user/dw_cn_2c/streampark/flink/flink-1.14.5/....

文章 2024-02-24 来自：开发者社区

Flink CDC数据同步问题之用savepoint重启任务报错如何解决

问题一：请教下，使用flink cdc同步数据到hudi ,如果mysql 字段有新增，怎么弄请教下，使用flink cdc同步数据到hudi ,如果mysql 字段有新增，怎么弄关于本问题的更多回答可点击进行查看： https://developer.aliyun.com/ask/503721?spm=a2c6h.13066369.questio...

问答 2024-02-21 来自：开发者社区

flink CDC中，同步任务重并没有同步mysql某张表，如果未被同步的表结构变更了怎么办？

flink CDC中，同步任务重并没有同步mysql某张表，如果未被同步的表结构变更了，flinkCDC 同步任务也会报错。按理说应该不会，是不是可以做些设置呢？

问答 2024-02-20 来自：开发者社区

Flink写hudi，任务一致阻塞，checkpoint时间很长，是有什么问题吗？需要怎么优化呢？

文章 2024-02-20 来自：开发者社区

如果从EARLIEST_OFFSET启动Flink CDC任务时遇到错误

如果从EARLIEST_OFFSET启动Flink CDC任务时遇到错误，而从最新位置消费则没有问题，那么可能与binlog文件有关。在MySQL中，binlog（binary log）是用于记录数据库写操作的日志文件。当使用Flink CDC捕获MySQL的数据变更时，它会读取binlog文件以获取数据变更信...

问答 2024-02-14 来自：开发者社区

Flink任务做sp大概率出现容器内存超用被kill 有朋友出现过吗有解决办法吗？

Flink任务做sp大概率出现容器内存超用被kill 有朋友出现过吗有解决办法吗？1.13.5

问答 2024-02-14 来自：开发者社区

flink cdc 从savepoint启动然后报这个错误怎么办呢？

在Flink CDC中，从savepoint启动任务时遇到“this is no longer available on the server. Reconfigure the connector to use a snapshot when needed.”错误。首次启动时使用StartupOptions.specificOffset可正常运行，但在恢复时使用StartupOptions.la....

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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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实时同步

MySQL 到 Hologres

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功能对比

开源Flink对比

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作业自动调优