sql实时计算 Flink版的相关内容

SQL 报错只有 flink runtime 的 NPE

我有这么一个 SQL INSERT INTO es SELECT a, udf_xxx(b) FROM mongo_oplog -- 自定义 TableFactory Job 提交后 fail 了，从 Job 提交到 Fail 只有一处来自非业务代码的 NPE 如下，没有任何业务代码 Excepti...

请问flink sql实时计算分位数如何实现哈？

你好：目前flink sql实时计算中没有percentile函数吗？如果没有，如何实现这一功能。期待你的答复，谢谢！*来自志愿者整理的flink邮件归档

实时数据分析：使用Flink实时发现最热Github项目

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生产hive sql 迁移flink 11 引擎，碰到的问题

最近尝试把一个生产 hive sql 任务，执行引擎切换成 flink 1.11.2 ，发现flink 11 对hive SQL的支持有下列问题1、不支持双引号表示字符串 2、不支持 != 表示不等运算 3、不支持类型隐式转换 4、不支持 split 函数 5、hive 不区分大小写，flin...

flink sql 如何实时计算百分比

flink1.10.1，应该如何计算error_1006_cnt_permillage sql如下： SELECT | DATE_FORMAT(TIMESTAMPADD(HOUR, 8, TUMBLE_START(proctime, INTERVAL '10' SECOND)), 'yyyy-MM-...

flink sql实时计算分位数如何实现

目前flink sql实时计算中没有percentile函数吗？如果没有，如何实现这一功能。期待你的答复，谢谢！ *来自志愿者整理的flink邮件归档

./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

flink sql 这种实时计算结果如何与离线计算的结果做数据比对？

有没有大佬有思路可以参考下？*来自志愿者整理的flink邮件归档

用下面表方法能执行成功并生成新表但是用上面注释的sql方式代码运行没报错最后code#Flink

用下面表方法能执行成功并生成新表但是用上面注释的sql方式代码运行没报错最后code 0结束但是没生成新表请问这是什么原因造成的?#Flink

求问这句sql哪里错了啊？#Flink

求问这句sql哪里错了啊？#Flink // call registered function in SQL Table result3=tEnv.sqlQuery("SELECT name, WeightedAvg(value, weight) FROM MyTable GROUP BY name...

请问用flink-sql写kafka发送Avro类型数据怎么定义avro schema的#Flink

请问用flink-sql写kafka发送Avro类型数据怎么定义avro schema的name和namespace？我这边用下面的配置写Kafka，发现写入的avro类型没有namespace，name=record。有没有办法自定义namespace和name？ 'topic' 'avro-c...

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更新时间 2024-03-12 16:30:44

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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

产品控制台

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