Kylin-web上的数据分析
Kylin Web Interface Supported Browsers Windows: Google Chrome, FireFox Mac: Google Chrome, FireFox, Safari 1. Access & Login Host to access: http://hostname:7070 Login with username/password: ADMIN/KYLIN 2. Sync Hive Table into Kylin Although Kylin will using SQL as query interface and leverage Hive metadata, kylin will not enable user to query all hive tables since it’s a pre-build OLAP (MOLAP) system so far. To enable Table in Kylin, it will be easy to using “Sync” function to sync up tables from Hive. 3. Kylin OLAP Cube Kylin’s OLAP Cubes are pre-calculation datasets from star schema tables, Here’s the web interface for user to explorer, manage all cubes. Go to Model menu, it will list all cubes available in system: To explore more detail about the Cube Form View: SQL View (Hive Query to read data to generate the cube): Access (Grant user/role privileges, grant operation only open to Admin): 4. Write and Execute SQL on web Kylin’s web offer a simple query tool for user to run SQL to explorer existing cube, verify result and explorer the result set using #5’s Pivot analysis and visualization Query Limit Only SELECT query be supported SQL will not be redirect to Hive Go to “Insight” menu: Source Tables: Browser current available tables (same structure and metadata as Hive): New Query: You can write and execute your query and explorer the result. Saved Query (only work after enable LDAP security): Associate with user account, you can get saved query from different browsers even machines. Click “Save” in Result area, it will popup for name and description to save current query: Click “Saved Queries” to browser all your saved queries, you could direct submit it or remove it. Query History: Only keep the current user’s query history in current bowser, it will require cookie enabled and will lost if you clean up bowser’s cache. Click “Query History” tab, you could directly resubmit any of them to execute again. 5. Pivot Analysis and Visualization There’s one simple pivot and visualization analysis tool in Kylin’s web for user to explore their query result: General Information: When the query execute success, it will present a success indictor and also a cube’s name which be hit. Also it will present how long this query be executed in backend engine (not cover network traffic from Kylin server to browser): Query Result: It’s easy to order on one column. Export to CSV File Click “Export” button to save current result as CSV file. Pivot Table: Drag and drop one or more columns into the header, the result will grouping by such column’s value: Visualization: Also, the result set will be easy to show with different charts in “Visualization”: note: line chart only available when there’s at least one dimension with real “Date” data type of column from Hive Table. Bar Chart: Pie Chart: Line Chart
