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
