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how to create a Result object with some null value? - HBase - [mail # user]
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...Now I want to test HBase with mock Result object.In the map(), we get value like this: byte[] date = value.getValue(Bytes.toBytes("f"), Bytes.toBytes("date")...
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Author: bigdata,
2013-02-27, 12:34
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HBase Result object problem when testing MapReduce - HBase - [mail # user]
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...I'm not sure this belongs to HBase or MRUnit. It's about HBase Result object for MapReduce. I have some mapreduce to calculate data in hbase. I try to use MRUnit to test ...
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Author: bigdata,
2013-02-27, 05:17
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RE: Is it necessary to set MD5 on rowkey? - HBase - [mail # user]
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...Thanks to all of you! Actually, I want to make some reports about device access times daily and some selected days range. I design a table like this: row key: date_deviceid this ...
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Author: bigdata,
2012-12-18, 15:20
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Is it necessary to set MD5 on rowkey? - HBase - [mail # user]
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...Many articles tell me that MD5 rowkey or part of it is good method to balance the records stored in different parts. But If I want to search some sequential rowkey records, such as date as r...
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Author: bigdata,
2012-12-18, 09:20
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RE: How to design a data warehouse in HBase? - HBase - [mail # user]
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...Hi, Tariq Thanks for your feedback. Actually, now we have two ways to reach the target, by Hive and by HBase.Could you tell me why HBase is not good for my requirements?Or what's the p...
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Author: bigdata,
2012-12-13, 14:28
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RE: How to design a data warehouse in HBase? - HBase - [mail # user]
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...Hi, I've got the information that HIVE 's performance is too low. It access HDFS files and scan all data to search one record. IS it TRUE? And HBase is much faster than it. ...
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Author: bigdata,
2012-12-13, 09:47
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RE: How to design a data warehouse in HBase? - HBase - [mail # user]
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...Thanks. I think a real example is better for me to understand your suggestions. Now I have a relational table:ID LoginTime &nbs...
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Author: bigdata,
2012-12-13, 09:13
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How to design a data warehouse in HBase? - HBase - [mail # user]
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...Dear all, We have a traditional star-model data warehouse in RDBMS, now we want to transfer it to HBase. After study HBase, I learn that HBase is normally can be query by rowkey. 1.full rowk...
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Author: bigdata,
2012-12-13, 05:57
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