Hi Luke,

 I am puzzled that why Kylin has sat a threshold value as 1000000. I have read 
a report about Kylin which introduced Kylin was good at OLAP of billion level 
of big data. However,I can't test it because of the threshold limitation. Did 
Kylin limit its performance purposefully?Or Kylin will release the restriction 
later in the new edition?


Thanks,
Steve


  


 




------------------ ???????? ------------------
??????: "Luke Han";<[email protected]>;
????????: 2015??5??21??(??????) ????4:05
??????: "[email protected]"<[email protected]>; 

????: Re: Kylin Cube Creation



Hi Tim, could you please refer to your previous mail thread? I have left
some comments there.

Thanks.



Best Regards!
---------------------

Luke Han

2015-05-21 11:51 GMT+08:00 tim <[email protected]>:

> Hello, I'm a student from SCUT.I'm interested in big data.Recently I want
> to test the big data query ability of kylin,and met some problem when
> creating cube. I'm new here and eager to get your help, thank you!
>
>
> 1.I load tables to hive by ETLtool kettle sucessfully,but when I try to
> load them to kylin ,it told me success but the file number and size
> displayed zero.So I try to add my my table sql to kylin's
> create_sample_tables.sql, It create sucessfully this time but it obviously
> not a good way to create tables . what's the difference between these two
> method. And how can I load tables to kylin from hive in normal way.
>
>
> 2. When I build the sample cube ,It met error on the penultimate step ,the
> error information is:  org.apache.hadoop.security.AccessControlException:
> Permission denied. user=root is not the owner of inode=null.  It seem like
> a permission problem, and I can't find the way out.
>
>
> 3.I want to test the big data query ability,about 1 billion,but kylin set
> its threshold value as 2 million. I found the threshold setting in source
> code DictionaryGenerator.java and StorageContext.java . Are there any other
> threshold setting? And what's next after I change the threshold value.
>
>
> I build Kylin on Hadoop 2.5.0-cdh5.3.0;
>                       hive-common-0.13.1-cdh5.3.0;
>                       hbase-0.98.6-cdh5.3.0
>
>                                                            Regards
>
>
>  tim.liang

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