关于savepoint恢复问题咨询？

hi, 社区 ​ 版本flink 1.7 ​ 我正在尝试从保存点（或检查点）还原flink作业，该作业的工作是从kafka读取->执行30分钟的窗口聚合（只是AggregationFunction，就像一个计数器）->下沉到kafka。 ​ 我使用rocksdb和启用检查点。 ​ 现在我尝试手动触发一个保存点。 每个汇总的期望值是30（1个数据/每分钟）。 但是，当我从保存点还原时（flink运行-d -s {savepoint的url}），聚合值不是30（小于30，取决于我取消flink作业并还原的时间）。 但是当作业正常运行时，它将达到30。 ​ 我不知道为什么有些数据似乎会丢失？ ​ 日志显示``No restore state for FlinkKafkaConsumer'' ​ ​​ ​ 四川省成都市高新区天府三街199号 太平洋保险金融大厦A区11楼 11th Floor,Tower A,Pacific insurance finance Building, No.199 TianFu 3rd Street, GaoXin District, Chengdu, Sichuan Province Mobile +86 15817382279 Email wangchunhao@navercorp.com

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-----Original Message----- From: "王春浩"wa...@navercorp.com To: us...@flink.apache.org; Cc: Sent: 2021/5/26周三 17:03 (GMT+08:00) Subject: inquire about restore from savepoint

Hi Community, ​ version flink 1.7 im trying to make a flink job restore from a savepoint(or checkpoint), what the job do is reading from kafka -> do a 30-minutes-window aggregation(just AggregationFunction, acts like a counter) -> sink to kafka. i use rocksdb and enabled checkpoint. now i try to trigger a savepoint manually. the expected value of each aggregated one is 30(1 data/per minute). but when i restore from a savepoint(flink run -d -s {savepoint's url}), the aggregated value is not 30(less than 30, depends on the time i cancel flink job and restore). but when the job run normally, it gets 30. i don't know why could some data seems to be lost? and a log shows "No restore state for FlinkKafkaConsumer"​*来自志愿者整理的flink邮件归档