看下你的 flink 命令对不对，然后去 Flink Web UI Checkpoint 界面，看下是否从 Savepoint 恢复（下面有个
restore path）.
之后再看下你的窗口时间类型用的是什么。
Best,
LakeShen
王春浩 <wang.chun...@navercorp.com> 于2021年5月27日周四 上午9:26写道：
> 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 wangchun...@navercorp.com
>
> NCloud
>
> -----Original Message-----
> From: "王春浩"<wang.chun...@navercorp.com>
> To: <u...@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"
>
>
>
> 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 wangchun...@navercorp.com
>
> NCloud
>
