Awesome! Glad to see the first evaluation feedback of Kylin 4!

Best regards,

Shaofeng Shi 史少锋
Apache Kylin PMC
Email: shaofeng...@apache.org

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hubert stefani <hubert_stef...@yahoo.fr.invalid> 于2020年9月11日周五 下午9:20写道:

>  Thanks for your advice. We succeeded in getting The Web UI  running.
>
> We have gathered the different configuration steps in a documentation we
> will share soon if you want.
> It may help to overcome the specific deployment of Kylin on aws
> .Regards,hubert
>
>     Le vendredi 11 septembre 2020 à 10:44:26 UTC, Yaqian Zhang <
> yaqian_zh...@126.com> a écrit :
>
>  If you wan’t to create a user and database and grant the roles for kylin
> metadata. You can follow the steps below:
>
> 1、Use root user login mysql: mysql -u root -pPassword
> 2、create a user named Kylin and password is kylin: CREATE USER 'kylin'@'%'
> IDENTIFIED BY 'kylin’;
> 3、create database kylin:create database kylin;
> 4、grant roles:GRANT ALL ON kylin.* TO 'kylin'@'%’;
>
> Then you can use 
> 'kylin_metadata_test@jdbc,url=jdbc:mysql://master:3306/kylin,username=kylin,password=kylin,maxActive=10,maxIdle=10
> <mysql://master:3306/kylin,username=kylin,password=kylin,maxActive=10,maxIdle=10'>'
> <mysql://master:3306/kylin,username=kylin,password=kylin,maxActive=10,maxIdle=10'>
> as kylin.metadata.url.
>
> > 在 2020年9月11日,17:59,Yaqian Zhang <yaqian_zh...@126.com> 写道:
> >
> > It seems that mysql have some problem, I find some related webpage
> provide follow method to resolve this error:
> >
> > Add below content in /etc/mysql/my.cnf:
> >
> > wait_timeout=31536000
> > interactive_timeout=31536000
> >
> > Then restart mysql.
> >
> > I’m not sure it works, you can try.
> >
> >> 在 2020年9月11日,17:37,hubert stefani <hubert_stef...@yahoo.fr.INVALID> 写道:
> >>
> >> we did so (we found out the  jar was actually missing), and then we got
> the  error below. (additional information : we try to deploy on aws emr
> 5.30)
> >>
> >> com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications
> link failure
> >>
> >> The last packet sent successfully to the server was 0 milliseconds ago.
> The driver has not received any packets from the server.
> >> at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
> >> at
> sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
> >> at
> sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
> >> at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
> >> at com.mysql.jdbc.Util.handleNewInstance(Util.java:408)
> >> at
> com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:1137)
> >> at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:356)
> >> at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2504)
> >>
> >> is there  a step to create the database, create users and grant roles ?
> >> Hubert
> >>  Le vendredi 11 septembre 2020 à 09:30:27 UTC, Yaqian Zhang <
> yaqian_zh...@126.com> a écrit :
> >>
> >> Hi Hubert:
> >>
> >> Have you put  mysql-connector-java-xxx.jar into $KYLIN_HOME/ext ?
> >>
> >> You can download the mysql JDBC jar from
> https://downloads.mysql.com/archives/c-j/ <
> https://downloads.mysql.com/archives/c-j/>.
> >>
> >>> 在 2020年9月11日,17:17,hubert stefani <hubert_stef...@yahoo.fr.INVALID>
> 写道:
> >>>
> >>> Hi,
> >>> we encounter the following error when we start the Web UI. it seems
> that mysql-driver is missing. Have we made a misconfiguration  ? Is there a
> detailed configuration ?
> >>>
> >>>
> >>> Exception in thread "main" java.lang.IllegalArgumentException: Failed
> to find metadata store by url: kylin_metadata@jdbc
> ,url=jdbc:mysql://localhost:3306/kylin,username=XXXX,password=XXXXXX,maxActive=10,maxIdle=10
> >>> at
> org.apache.kylin.common.persistence.ResourceStore.createResourceStore(ResourceStore.java:101)
> >>> at
> org.apache.kylin.common.persistence.ResourceStore.getStore(ResourceStore.java:113)
> >>> at
> org.apache.kylin.common.persistence.ResourceTool.copyParallel(ResourceTool.java:153)
> >>> at
> org.apache.kylin.common.persistence.ResourceTool.main(ResourceTool.java:102)
> >>> Caused by: java.lang.reflect.InvocationTargetException
> >>> at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native
> Method)
> >>> at
> sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
> >>> at
> sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
> >>> at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
> >>> at
> org.apache.kylin.common.persistence.ResourceStore.createResourceStore(ResourceStore.java:94)
> >>> ... 3 more
> >>> Caused by: java.lang.IllegalArgumentException:
> org.apache.commons.dbcp.SQLNestedException: Cannot load JDBC driver class
> 'com.mysql.jdbc.Driver'
> >>> at
> org.apache.kylin.common.persistence.JDBCConnectionManager.<init>(JDBCConnectionManager.java:68)
> >>> at
> org.apache.kylin.common.persistence.JDBCConnectionManager.getConnectionManager(JDBCConnectionManager.java:48)
> >>>
> >>> Regards,Hubert
> >
>

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