HI Enjun，
Kylin can’t ‘create’ Hive table,it syncstables from Hive.
Pls refer to this link: http://kylin.apache.org/docs21/tutorial/web.html for
how to sync tables.
BR,
Lee.
发件人: "enjun.zhu" <727865...@qq.com>
答复: "dev@kylin.apache.org"
日期: 2017年9月29日 星期五 14:24
至: dev
主题: about kylin
我有问
hivekylinhive??...
...
Wang Cheng created KYLIN-2916:
-
Summary: NPE happens in testBPUSCalculator randomly
Key: KYLIN-2916
URL: https://issues.apache.org/jira/browse/KYLIN-2916
Project: Kylin
Issue Type: Bug
how about int column? Can I use a integer column in on cube both as dimension
and distinct count?
在 2017-09-29 11:41:02，ShaoFeng Shi 写道：
>Split that into two cubes: in one it acts as a dimension, in the other, it
>acts as count distinct measure.
>
>2017-09-29 11:12 GMT+08:00 崔苗 :
>
>> if a column
liyang created KYLIN-2915:
-
Summary: Exception during query on lookup table
Key: KYLIN-2915
URL: https://issues.apache.org/jira/browse/KYLIN-2915
Project: Kylin
Issue Type: Bug
Reporter:
The issue is discussed in https://issues.apache.org/jira/browse/KYLIN-2679
2017-09-29 11:41 GMT+08:00 ShaoFeng Shi :
> Split that into two cubes: in one it acts as a dimension, in the other, it
> acts as count distinct measure.
>
> 2017-09-29 11:12 GMT+08:00 崔苗 :
>
>> if a column was used both a
Split that into two cubes: in one it acts as a dimension, in the other, it
acts as count distinct measure.
2017-09-29 11:12 GMT+08:00 崔苗 :
> if a column was used both as dimension and distinct count,what should be
> use to encode ?
> 在 2017-09-29 11:05:28，ShaoFeng Shi 写道：
> >Use GD for dimensio
if a column was used both as dimension and distinct count,what should be use
to encode ?
在 2017-09-29 11:05:28，ShaoFeng Shi 写道：
>Use GD for dimension encoding will cause query inaccurate, that should be
>avoided.
>
>Please use dict or fixed_length encoding for that column.
>
>2017-09-29 10:37 GM
Use GD for dimension encoding will cause query inaccurate, that should be
avoided.
Please use dict or fixed_length encoding for that column.
2017-09-29 10:37 GMT+08:00 柯南 :
> Yes，I am careful to use GD. Could I have another way to instead of GD？
>
>
>
>
> -- 原始邮件 ---
Yes??I am careful to use GD. Could I have another way to instead of GD??
-- --
??: "ShaoFeng Shi";;
: 2017??9??29??(??) 9:41
??: "dev";
: Re: A problem about Global Dictionary and cube merge
I see; Did you use G
I see; Did you use GlobalDictionaryBuilder for a dimension column? The GD
should only be used for count distinct measure, not suitable for dimension
encoding.
2017-09-28 23:57 GMT+08:00 柯南 :
> Thank you for your reply!
> I know this command.But Because its segment could not be merged, even if
>
Yes it is possible, but the latest Kylin 2.1 version should be used. The
previous version has a bug which will write big metadata file for cluster
A's HDFS.
2017-09-28 22:03 GMT+08:00 cludezhu :
> "hadoop cluster (A) env will be released " means deleting the cluster.
>
> after I delete the hadoo
Thank you for your reply!
I know this command.But Because its segment could not be merged, even if run
this command ,the hbase tables could not be cleaned.
-- --
??: "ShaoFeng Shi";;
: 2017??9??28??(??) 9:29
??: "dev";
"hadoop cluster (A) env will be released " means deleting the cluster.
after I delete the hadoop cluster, is that possible to keep a kylin query
instance running just with the hbase cluster?
thanks
cludezhu
On September 28, 2017 at 9:27:43 PM, ShaoFeng Shi (shaofeng...@apache.org)
wrote:
W
You need run this:
https://kylin.apache.org/docs21/howto/howto_cleanup_storage.html
2017-09-28 20:40 GMT+08:00 柯南 :
> hi,all：
> Because of our yarn and hbase`s version limited,we deploy apache
> kylin 1.6.0. For the correct result of 'count(distinct A_col)' across
> segments, we must use Gl
What do you mean by "hadoop cluster (A) env will be released "? Delete the
cluster, or just keep a minimal running?
If your Hadoop uses on-disk HDFS, there will be data loss when you delete
the cluster. Remember to do a backup for the /kylin folder if you do want
to do that.
2017-09-28 20:12 GMT
hi,all??
Because of our yarn and hbase`s version limited,we deploy apache kylin
1.6.0. For the correct result of 'count(distinct A_col)' across segments, we
must use Global Dictionary to A_col. When the cube contain configuration of
'org.apache.kylin.dict.GlobalDictionaryBuilder', its segm
sure. That's typical read/write deployment.
2017-09-28 18:47 GMT+08:00 cludezhu :
> Hi,
>
> currently we have two cluster for kylin deployment:
> hadoop cluster (A) for calculating and building cube
> hbase cluster (B) for storing data.
>
> We just create the calculating cluster (A) on demand sin
Hi,
currently we have two cluster for kylin deployment:
hadoop cluster (A) for calculating and building cube
hbase cluster (B) for storing data.
We just create the calculating cluster (A) on demand since all our env is
deployed on Cloud. so the hadoop cluster (A) env will be released after
Hi,
currently we have two cluster for kylin deployment:
hadoop cluster (A) for calculating and building cube
hbase cluster (B) for storing data.
We just create the calculating cluster (A) on demand since all our env is
deployed on Cloud. so the hadoop cluster (A) env will be released after we
Pan, Julian created KYLIN-2914:
--
Summary: Visualization tools for data lineage
Key: KYLIN-2914
URL: https://issues.apache.org/jira/browse/KYLIN-2914
Project: Kylin
Issue Type: New Feature
Hi,that means kylin.query.cache-enabled is ture or false is not matter?
446463...@qq.com
From: ShaoFeng Shi
Date: 2017-09-28 15:46
To: dev
Subject: Re: query problem
Hi, Kylin only caches some queries which: 1) take longer time 2) scan many
rows in HBase 2) scan many bytes;
So if your query
Hi, Kylin only caches some queries which: 1) take longer time 2) scan many
rows in HBase 2) scan many bytes;
So if your query wasn't cached, it indicates that it doesn't match these
rules. The threshold of these conditions can be tunned in kylin.properties,
as we see in this part of codes.
2017-0
Hi all :
there is a problem in querying result though kylin
I view the code in QueryService.java at kytlin
```
public SQLResponse doQueryWithCache(SQLRequest sqlRequest) {
// some code
SQLResponse sqlResponse = null;
boolean queryCacheEnabled =
checkCondition(kylinConfig.isQ
Hi all :
there is a problem in querying result though kylin
I view the code in QueryService.java at kytlin
```
public SQLResponse doQueryWithCache(SQLRequest sqlRequest) {
// some code
SQLResponse sqlResponse = null;
boolean queryCacheEnabled =
checkCondition(kylinConfig.isQ
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