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Questions tagged [kylin]

An open source distributed Analytical Engine from eBay to provide SQL interface and multi-dimensional analysis (OLAP) on Hadoop to support TB to PB size analysis.

An open source distributed Analytical Engine from eBay to provide SQL interface and multi-dimensional analysis (OLAP) on Hadoop to support TB to PB size analysis.

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158 questions
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Does Apache kylin support taking data for a cube from more than 1 hadoop cluster?

I want to take data from hive tables that are in two different clusters , How can i do that?
rohit
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Apache Kylin VS Arcadia data

Can anyone elaborate difference between apache kylin and Arcadia data? Which is better in terms of support,functionality,ease of use,fetaures,file format,etc.
Sunil Harak
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Apache Kylin not able to load models/configuration

I'm new to hadoop,hive, hbase and kylin. I tried to install thoose first three, and it's seems to be working. After that I tried to install apache kylin, run the sample.sh and success. After running the script I restart and open the web interface.…
Richard Octovianus
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Every time we add new Data to Hive, Do we have to build the kylin cube again

If add more rows to hive table, Do we have to run a map reduce job again to build the cube if we create a cube without partition Date column
John Paulus Prem
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Kylin sync issue with hive tables

I am trying to sync up a table from a list of hive table into kylin in order to build a cube. But, in the process I see metadata synced up and shows up in Kylin but not the actual data. When I try seeing the associated logs, here is what I…
Ajay
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is Apache Kylin good alternative for SSRS(SQL Server Reporting Services)?

We have framework for analysis data with the help of cube design for OLAP and warehouse that has ETL connections, all of them are in sqlServer structure and SSRS(SQL Server Reporting Services). Some of our reports take a lot of time to come to a…
Saeed Aliakbari
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Cassandra and aggregated data

We have a "legacy" SQL Server-based application which keeps OLTP data (sales): OLTP data structure is very complex Still we must keep it as a source for reports Reports over OLTP structures are very slow So we prepare and keep actual "OLAP"-views,…
maxim_ge
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Kylin builds streaming cude failed from Kafka

we failed to build streaming cube in first step:save data from kafka, this is the output log: Counters: 12 Job Counters Failed map tasks=4 Launched map tasks=4 Other local map tasks=3 …
dujijun
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What's the meaning of 'acceptPartial' and 'backdoorToggles' in Kylin's SQLRequest?

I am studying Kylin, and found when kylin execute a query, there are two param "acceptPartial" and 'backdoorToggles'. What's the meaning? public class SQLRequest implements Serializable { protected static final long serialVersionUID = 1L; …
lulijun
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How to specify the character encoding of Mybatis?

Here is the problem. There is a fact table in Kylin which has a column named "name". When I access the table just using jdbc, everything is ok. Then I use Mybatis to connect the same jdbcUrl. But I get a mess when I read the column "name". I don't…
Hao
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Environment setup issue while running KYLIN_HOME/bin/check-env.sh

While checking the environment setup of Kylin2.1.0, it returns the following "Please make sure the user has the privilege to run hadoop shell" Versions of tools used Hadoop: 2.7 Hive: 2.0.0 HBase: hbase-1.2.4 JDK:…
Dhinesh Babu
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Apache Kylin: sql query error ： java.lang.AbstractMethodError

java.lang.AbstractMethodError:…
tommy
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Can't start kylin on kerberized cluster

I have installed Kerberos and Sentry on the CDH cluster successfully (cm-5.8.4), now I need to use Apache Kylin to do some data analysis, but I can't start Kylin and install the sample.sh. When I try to run sh sample.sh, I get this error…
Gongda Fang
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Browse Apache Kylin Cubes

We have created Data Model and Cubes in Apache Kylin version 2.0. We are able to query the tables in the Cube (under Insights tab). But, we are not able to figure out how to browse the Cube, similar to what happens in SASS. I want to query Metrics…
Hadoop Developer
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Tableau connectivity through apache Kylin

In Apache kylin we read the hive tables and build the cube out of it. And tableau we connect through Apache Kylin ODBC driver, but when i connect i can see only hive tables ...internally it might be using cube but i cant see any. lets say if i…
Khushbu Agrawal
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