>"user-zh"
>
>:2021??2??25??(???
??Flink
SQL Join
??
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JasonLee
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jasonlee1...@163.com
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??
??2021??02??25?? 14:40??Suhan ??
benchao??joinrocketmqflink??kafka
+ rocket mq
??----
??:lxk7...@163.com
017...@163.com;
> 发送时间:2020年7月6日(星期一) 中午11:12
> 收件人:"user-zh"
> 主题:Re: 【Flink Join内存问题】
>
>
>
> regular join确实是这样,所以量大的话可以用interval join 、temporal join
>
> 2020年7月5日 下午3:50,忝忝向仧 <153488...@qq.com 写道:
>
> Hi,all:
>
> 我看源码里写到JoinedStreams:
Hi:
interval joinkey?
interval join??join??regular
join??stream??key?
.
----
??:
regular join确实是这样,所以量大的话可以用interval join 、temporal join
> 2020年7月5日 下午3:50,忝忝向仧 <153488...@qq.com> 写道:
>
> Hi,all:
>
> 我看源码里写到JoinedStreams:
> 也就是说join时候都是走内存计算的,那么如果某个stream的key值过多,会导致oom
> 那么有什么预防措施呢?
> 将key值多的一边进行打散?
>
>
> Right now, the join is being evaluated in memory so you need to
Hi,all:
??JoinedStreams:
join??stream??key??oom
?
??key
Right now, the join is being evaluated in memory so you need to ensure that the
number
* of elements per key does not get too high.
??datastream
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jimandlice
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??jimandl...@163.com
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??2020??05??16?? 23:00??1048262223 ??
??dataset api??
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??: "jimandlice"
??dataset api??
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??: "jimandlice"
??:FlinkJoin??.
ds1??ds2kafkaevent
time??watermark??3s:
??join???
watermark_time=window_endtime
??:FlinkJoin??.
ds1??ds2kafkaevent
time??watermark??3s:
??join???
watermark_time=window_endtime
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