[jira] [Commented] (KYLIN-2325) kylin sql optimization is very slow about 100ms or so, and consumes a lot of cpu

2017-11-28 Thread Shaofeng SHI (JIRA)

[ 
https://issues.apache.org/jira/browse/KYLIN-2325?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16270240#comment-16270240
 ] 

Shaofeng SHI commented on KYLIN-2325:
-

Please provide more information like sample sql, profiling statistics for the 
developer to understand the scenario. Not everyone can understand the problem 
quickly.


> kylin sql optimization is very slow about 100ms or so, and consumes a lot of 
> cpu
> 
>
> Key: KYLIN-2325
> URL: https://issues.apache.org/jira/browse/KYLIN-2325
> Project: Kylin
>  Issue Type: Improvement
>Reporter: WangTaiZe
>  Labels: performance
>   Original Estimate: 12h
>  Remaining Estimate: 12h
>
> kylin sql optimization is too slow, and consumes too much cpu. 



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[jira] [Commented] (KYLIN-2325) kylin sql optimization is very slow about 100ms or so, and consumes a lot of cpu

2017-02-22 Thread Billy Liu (JIRA)

[ 
https://issues.apache.org/jira/browse/KYLIN-2325?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15878494#comment-15878494
 ] 

Billy Liu commented on KYLIN-2325:
--

Hi [~elasticlog], are you talking about this 
https://issues.apache.org/jira/browse/KYLIN-2001

> kylin sql optimization is very slow about 100ms or so, and consumes a lot of 
> cpu
> 
>
> Key: KYLIN-2325
> URL: https://issues.apache.org/jira/browse/KYLIN-2325
> Project: Kylin
>  Issue Type: Improvement
>Reporter: WangTaiZe
>  Labels: performance
> Fix For: v2.0.0
>
>   Original Estimate: 12h
>  Remaining Estimate: 12h
>
> kylin sql optimization is too slow, and consumes too much cpu. 



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[jira] [Commented] (KYLIN-2325) kylin sql optimization is very slow about 100ms or so, and consumes a lot of cpu

2017-02-19 Thread liyang (JIRA)

[ 
https://issues.apache.org/jira/browse/KYLIN-2325?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15874065#comment-15874065
 ] 

liyang commented on KYLIN-2325:
---

> Can we add the results of optimizing sql to cache for reuse?

Of course we can. However, I don't see SQL optimization a bottleneck for most 
users yet. Why you think it is bottleneck? Any numbers?

> kylin sql optimization is very slow about 100ms or so, and consumes a lot of 
> cpu
> 
>
> Key: KYLIN-2325
> URL: https://issues.apache.org/jira/browse/KYLIN-2325
> Project: Kylin
>  Issue Type: Improvement
>Reporter: WangTaiZe
>  Labels: performance
> Fix For: v2.0.0
>
>   Original Estimate: 12h
>  Remaining Estimate: 12h
>
> kylin sql optimization is too slow, and consumes too much cpu. 



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[jira] [Commented] (KYLIN-2325) kylin sql optimization is very slow about 100ms or so, and consumes a lot of cpu

2017-02-09 Thread WangTaiZe (JIRA)

[ 
https://issues.apache.org/jira/browse/KYLIN-2325?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15860803#comment-15860803
 ] 

WangTaiZe commented on KYLIN-2325:
--

In some scenarios, the time of querying storage may take only a few 
milliseconds, but optimizing sql consumes a hundred milliseconds. Can we add 
the results of optimizing sql to cache for reuse?

> kylin sql optimization is very slow about 100ms or so, and consumes a lot of 
> cpu
> 
>
> Key: KYLIN-2325
> URL: https://issues.apache.org/jira/browse/KYLIN-2325
> Project: Kylin
>  Issue Type: Improvement
>Reporter: WangTaiZe
>  Labels: performance
> Fix For: v2.0.0
>
>   Original Estimate: 12h
>  Remaining Estimate: 12h
>
> kylin sql optimization is too slow, and consumes too much cpu. 



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[jira] [Commented] (KYLIN-2325) kylin sql optimization is very slow about 100ms or so, and consumes a lot of cpu

2017-02-07 Thread liyang (JIRA)

[ 
https://issues.apache.org/jira/browse/KYLIN-2325?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15857546#comment-15857546
 ] 

liyang commented on KYLIN-2325:
---

Hi [~elasticlog], thanks for bring up this topic.

100ms is not much in big data scenario and it's meant to use CPU.

That said, what is your requirement regarding the SQL parsing performance? Why 
is 100ms a concern? Is it a bottleneck in your env? Any performance goal you 
want to achieve?

Please share more background.

> kylin sql optimization is very slow about 100ms or so, and consumes a lot of 
> cpu
> 
>
> Key: KYLIN-2325
> URL: https://issues.apache.org/jira/browse/KYLIN-2325
> Project: Kylin
>  Issue Type: Improvement
>Reporter: WangTaiZe
>  Labels: performance
> Fix For: v2.0.0
>
>   Original Estimate: 12h
>  Remaining Estimate: 12h
>
> kylin sql optimization is too slow, and consumes too much cpu. 



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