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设置 state ttl 之前 sink 数据能一直更新吗?确认不是因为后来的数据不符合某些 where 条件导致的吗? liangjinghong <liangjingh...@huawei.com.invalid> 于2022年2月12日周六 14:39写道: > 你好,我是一个flink新手。为了进行状态管理,我在代码中设置了configuration.setString("table.exec.state.ttl","12h"); > > 然而,在flink作业运行12小时后,*我的update结果表再也没有更新过*。从web ui可以看到,我的源头与一些算子的Records > Sent一直在增长,任务也没有出现任何异常,checkpoint也正常,所以我很苦恼是哪里出现了问题 > > 以下是我的SQL语句: > > CREATE TABLE `tbl_rpt_app_usage` > > (`datepoint` TIMESTAMP, > > `appId` VARCHAR , > > `flavor` VARCHAR , > > `applyNum` BIGINT , > > `releaseNum` BIGINT , > > `usedNum` BIGINT , > > PRIMARY KEY (`datepoint`) NOT ENFORCED > > )WITH( > > 'connector' = 'mysql-cdc', > > 'hostname' = '', > > 'port' = '3306', > > 'username' = '', > > 'password' = '', > > 'database-name' = '', > > 'table-name' = '' > > ); > > CREATE TABLE `temporary_usage` > > (`datepoint` TIMESTAMP, > > `appId` VARCHAR , > > `flavor` VARCHAR , > > `applyNum` BIGINT , > > `releaseNum` BIGINT , > > `usedNum` BIGINT , > > PRIMARY KEY (`datepoint`) NOT ENFORCED > > )WITH( > > 'connector' = 'mysql-cdc', > > 'hostname' = '', > > 'port' = '', > > 'username' = '', > > 'password' = '', > > 'database-name' = '', > > 'table-name' = '' > > ); > > CREATE TABLE `tbl_cce_cluster` > > (`clusterId` VARCHAR , > > `region` VARCHAR , > > `flavor` VARCHAR , > > `totalNode` BIGINT , > > `toolName` VARCHAR , > > `appId` VARCHAR , > > PRIMARY KEY (`clusterId`) NOT ENFORCED > > )WITH( > > 'connector' = 'mysql-cdc', > > 'hostname' = '', > > 'port' = '3306', > > 'username' = '', > > 'password' = '', > > 'database-name' = '', > > 'table-name' = '' > > ); > > ---mysql落地表 > > CREATE table sink( > > code STRING, > > name STRING, > > usedcnt BIGINT, > > `time` TIMESTAMP, > > type STRING, > > PRIMARY KEY (`time`) NOT ENFORCED > > ) with ( > > 'connector' = 'jdbc', > > 'url' = 'jdbc:mysql: ', > > 'username' = '', > > 'password' = '', > > 'table-name' = 'sink' > > ); > > (因为MySQLCDC似乎不支持在同步时筛选指定内容,所以目前同步后先创建筛选结果的虚拟表,再进行计算,还想请教下是否有更好的办法) > > CREATE VIEW rpt > > (datepoint,appId,flavor,applyNum,releaseNum,usedNum) > > AS > > select * from tbl_rpt_app_usage > > where datepoint > '2022-02-11 14:54:01' > > and appId not in ('aaa') > > union all > > select * from temporary_usage > > > > CREATE VIEW cce > > (clusterId,region,flavor,totalNode,toolName,appId) > > AS > > select * from tbl_cce_cluster > > where toolName in ('bbb','ccc') > > > > ---代码逻辑如下: > > insert into sink > > select code,name,usedcnt,LOCALTIMESTAMP as `time`,type from( > > select > > info.code, > > info.name, > > sum(rpt.usedNum) as usedcnt,'online' type > > from ( > > select * from ( > > select *,ROW_NUMBER() OVER(PARTITION by appId,flavor order by datepoint > desc) as row_num from rpt/*+ OPTIONS('server-id'='1001-1005') */ > > )where row_num =1 > > )rpt > > join info > > on info.appid=rpt.appId > > group by info.code,info.name) > > union all > > select code,name,usedcnt,LOCALTIMESTAMP as `time`,type from( > > select > > info.code, > > info.name, > > sum(totalNode) as usedcnt,'online' type > > from > > cce/*+ OPTIONS('server-id'='1006-1010') */ > > join info > > on cce.appId=info.appid > > group by info.code,info.name) > > 我的结果表在的12小时(我设置的过期时间)后,再也没更新过。 > > > > 另外,还想请教一个问题:目前group by算子的落地到数据库的结果只支持update > 吗?业务期待获取历史数据,目前只能想到每分钟全量同步一次结果表的数据到另一个表里,这样就可以追踪到历史数据,是否还有更好的解决办法呢? > > > > > > 非常感谢您的阅读与解惑! >