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????????iPhone ------------------ Original ------------------ From: ShaoFeng Shi <shaofeng...@apache.org> Date: Tue,Aug 21,2018 9:19 AM To: user <user@kylin.apache.org> Subject: Re: HBase table schema for cube data Hi Ashish, The slide is shared here, just FYI: https://www.slideshare.net/ShiShaoFeng1/apache-kylin-on-hbase-extreme-olap-engine-for-big-data 2018-08-11 8:24 GMT+08:00 ShaoFeng Shi <shaofeng...@apache.org>: Sure, looking forward to your PoC result. Thank you Ashish! 2018-08-08 17:08 GMT+08:00 Ashish Singhi <ashishsin...@apache.org>: Hi Shaofeng, Yes, we are able to setup Kylin and build cubes. We are are doing a PoC, so still exploring things on it. Once we have concluded it, I will definitely share the use case here. Thanks, Ashish On Wed, Aug 8, 2018 at 2:33 PM, ShaoFeng Shi <shaofeng...@apache.org> wrote: Hi Ashish, 'GT' here stands for "GridTable", which is an abstract for Kylin's storage layer; Yeah, the slides will be shared after the event. We may also update some content to Kylin's documentation. Were you able to run Kylin successfully at your side? What's the scenario that you hope Kylin can help? We'd like to get feedback from you, in a technical or business perspectives. Thanks! 2018-08-07 23:25 GMT+08:00 Ashish Singhi <ashish.singhi.apa...@gmail.com>: Hi Shaofeng, Thanks for the reply. I understand it now. I see a lot of 'GT' in class name, curious to know what it stands for ? Good luck for your presentation. Unfortunately, I will not be able to make it this time. I hope your slides will uploaded somewhere from where we can refer it. Regards, Ashish On Tue, Aug 7, 2018 at 2:38 PM, ShaoFeng Shi <shaofeng...@apache.org> wrote: Hi Ashish, I'm preparing a slide for HBase Conference Asia 2018 next week. Here are some bullets for it: Dimension values are encoded to bytes (via dictionary or others) Measures are serialized into bytes HBase Rowkey format: Shard ID (2 bytes) + Cuboid ID (8 bytes) + Dimension values HBase Value: measure serialized bytes The HBase table is split into regions by Shard ID You can refer to org.apache.kylin.cube.kv.RowKeyEncoder; 2018-08-06 23:49 GMT+08:00 Ashish Singhi <ashishsin...@apache.org>: Hi Team, Is there any blog or some one can tell me what is HBase schema of the table in which cube data is stored ? If you can point me to class also where the HBase rowkey and column value is formed will also be helpful. Thanks, Ashish -- Best regards, Shaofeng Shi ?????? -- Best regards, Shaofeng Shi ?????? -- Best regards, Shaofeng Shi ?????? -- Best regards, Shaofeng Shi ??????
