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Re: md5 hash key and splits - HBase - [mail # user]
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...The Facebook devs have mentioned in public talks that they pre-split their tables and don't use automated region splitting. But as far as I remember, the reason for that isn't pr...
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Author: Ian Varley,
2012-08-30, 23:26
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Re: Choose the location of a record - HBase - [mail # user]
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...Blaise, Generally speaking, no. The distribution of row keys over regions is handle d by HBase. This is as you would want, so that the failure of any given ser ver is transparent to yo...
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Author: Ian Varley,
2012-08-23, 13:01
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Re: Schema Design - Move second column family to new table - HBase - [mail # user]
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...Christian, Column families are really more "within" rows, not the other way around (th ey're really just a way to physically partition sets of columns in a table) . In your example, th...
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Author: Ian Varley,
2012-08-20, 14:37
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Re: Embedded table data model - HBase - [mail # user]
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...Yes, that's what I mean. It is not the only way to model this, but your question was, "Can we embedded the transactions inside the customer table in HBase". On Jul 12, 201...
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Author: Ian Varley,
2012-07-13, 04:55
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Re: Embedded table data model - HBase - [mail # user]
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...Column families are not the same thing as columns. You should indeed have a small number of column families, as that article points out. Columns (aka column qualifiers) are run-t...
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Author: Ian Varley,
2012-07-13, 03:08
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Re: Embedded table data model - HBase - [mail # user]
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...Yes, that's fine; you can always do a single column PUT into an existing ro w, in a concurrency-safe way, and the lock on the row is only held as long as it takes to do that. Because o...
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Author: Ian Varley,
2012-07-12, 06:31
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Re: Embedded table data model - HBase - [mail # user]
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...Hi Xiaobo - For HBase, this is doable; you could have a single table in HBase where eac h row is a customer (with the customerid as the rowkey), and columns for ea ch of the 300 attrib...
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Author: Ian Varley,
2012-07-12, 05:13
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Re: Addition to Apache HBase Reference Guide - HBase - [mail # user]
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...Mohammad, Absolutely - that's exactly how open source projects grow! :) You can open up a JIRA for your suggested edits, and then either post your edits directl y in the JIRA tic...
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Author: Ian Varley,
2012-06-21, 15:10
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Re: Collation order of items - HBase - [mail # user]
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...Tom, another approach you could take would be to store an ASCII encoded ver sion of the string as the row key or column qualifier, and then the full UT F-8 string elsewhere (e.g. in the cell...
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Author: Ian Varley,
2012-06-08, 17:40
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Re: Some suggestions for future features - HBase - [mail # dev]
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...Are you guys thinking this would be a "helper" class that just iterates ove r rows and marks them as deleted? Or any attempt to make it a more fundamen tal atomic delete operation that can r...
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Author: Ian Varley,
2012-06-05, 19:34
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