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From Shrikant Bang <b.shrikan...@gmail.com>
Subject Re: Understanding Query Cache In Apache Kylin
Date Tue, 13 Nov 2018 15:17:59 GMT
Thank you ShaoFeng and Na Zhai for response.

Regards,
Shrikant Bang

On Tue, Nov 13, 2018, 7:51 PM ShaoFeng Shi <shaofengshi@apache.org wrote:

> Kylin's query cache is simple, just checking the SQL's signature; so, in
> your case, the query of (D1, D2) won't use the cache of (D1, D2, D3).
>
>
> Best regards,
>
> Shaofeng Shi 史少锋
> Apache Kylin PMC
> Work email: shaofeng.shi@kyligence.io
> Kyligence Inc: https://kyligence.io/
>
> Apache Kylin FAQ: https://kylin.apache.org/docs/gettingstarted/faq.html
> Join Kylin user mail group: user-subscribe@kylin.apache.org
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>
>
>
>
> Na Zhai <na.zhai@kyligence.io> 于2018年11月13日周二 下午9:26写道:
>
>> Hi, Shrikant Bang
>>
>> I think it will not go through query cached result(of D1,D2,D3) .
>>
>>
>>
>> 发送自 Windows 10 版邮件 <https://go.microsoft.com/fwlink/?LinkId=550986>应用
>>
>>
>>
>> *发件人: *Shrikant Bang <b.shrikant28@gmail.com>
>> *发送时间: *2018年11月13日 20:50
>> *收件人: *dev@kylin.apache.org; user@kylin.apache.org
>> *主题: *Understanding Query Cache In Apache Kylin
>>
>>
>>
>> Hi Team,
>>
>>
>>
>> Let say I have a cube on dimensions D1, D2, D3 and Metrics M1, M2, M3.
>>
>>
>>
>> When I  hit a multiple queries on grouping dimension D1, D2, D3, it will
>> get cached and cuboid will be hot.
>>
>>
>>
>> Once cuboid (D1,D2,D3) gets cached and I will hit a query on grouping
>> dimension D1, D2 (with similar metrics).
>>
>> Will query go through query cached result (of D1,D2,D3) or runs a query
>> on HBase Table?
>>
>>
>>
>> P.S. I am using Apache Kylin v2.5.1-hbase1.x
>>
>>
>>
>> Thank You,
>>
>> Shrikant Bang
>>
>>
>>
>

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