实时计算 Flink版任务的相关内容

问答 2021-12-02 来自：开发者社区

flink能支持动态增加任务吗？

flink消费一个kafka主题，比如里面有一个字段分为a,b,c,d......，现在有一个需求就是要过滤出字段是a的数据，进行后续操作。写完这个任务提交了过后，过段时间又需要过滤出字段b进行后续操作，后续的操作都是一样的，现在我就要为它在开发一个任务，在提交一次，数据量都不大。但是每提交一次都会耗费资源。以后说不定还会要过滤c,d,e....有什么好办法解决这个问题吗 *来自志愿者整理的f.....

问答 2021-12-02 来自：开发者社区

Flink任务假死；无限100%反压；但下游节点无压力是为什么？

如题，这个问题以前遇到过，后来发生频率低了，近期又多了几次，下面是具体的话题讨论，email不方便贴图。语雀：https://www.yuque.com/sixhours-gid0m/ls9vqu/rramvh *来自志愿者整理的flink邮件归档

问答 2021-12-02 来自：开发者社区

flink run -d -m yarn-cluster 提交任务到yarn集群不成功怎么办

不太明白“配置到哪一级”是什么含义。export 命令是将变量导出到目前的 shell session，在从 shell logout 之前都有效。如果运行了 export 命令之后再运行 flink run 应该就可行了。*来自志愿者整理的flink邮件归档

问答 2021-12-02 来自：开发者社区

Flink Yarn Session模式，多任务不同Kerberos认证问题

在Flink Yarn Session中每次提交Job都更换principal。因为要做权限隔离，每个用户有自己的principal。现在 Flink Session模式是不是无法满足多个principal共享一个Flink Session集群，只能走perjob。或者每个持有独立principal的用户独享一个Session。*来自志愿者整理的flink邮件归档

问答 2021-12-02 来自：开发者社区

Flink on yarn 如何指定固定几台yarn节点当做flink任务的运行节点

请问Flink on yarn 如何指定固定几台yarn节点当做flink任务的运行节点？*来自志愿者整理的flink邮件归档

问答 2021-12-02 来自：开发者社区

flink 1.12提交用户任务方法问题

请问 flink 1.11 版本下用于提交用户任务的方法 org.apache.flink.client.ClientUtils.submitJob(ClusterClient, JobGraph)方法在 flink 1.12版本下找不到了，现在用哪个方法取代了呢？又该如何获取提交任务后的jobId呢？谢谢！ | publicstaticJobExecut...

问答 2021-12-02 来自：开发者社区

./sql-client.sh embedded 这种方式提交的flink任务怎么设置state以及

./sql-client.sh embedded 这种方式提交的flink任务怎么设置state以及checkpoint? 如题还是只能把sql放在java里边，通过tableEnvironment.sqlQuery执行？*来自志愿者整理的flink邮件归档

问答 2021-12-01 来自：开发者社区

flink1.12版本，使用yarn-application模式提交任务失败怎么办？

通过脚本提交flink作业,提交命令： /bin/flink run-application -t yarn-application -Dyarn.provided.lib.dirs="hdfs://xx/flink120/" hdfs://xx/flink-example.jar --sqlFilePath /xxx/kafka2print.sql flink使用的Lib及user jar已.....

问答 2021-10-27 来自：开发者社区

Flink任务报MySQLTransactionRollbackException异常

问答 2021-10-27 来自：开发者社区

Flink任务报InvalidProgramException异常

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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。

立即开通

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产品文档

实时同步

MySQL 到 Hologres

Kafka 到 Hologres

功能对比

开源Flink对比

成本优化

作业自动调优