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Re: Hbase Data Model to purge old data. - HBase - [mail # user]
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...than Sorry for the obvious question, but have you tried using TTLs instead of deleting rows explicitly? This should bring less load on the cluster, though you'll still have to run majo...
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Author: Alex Baranau,
2012-07-26, 14:27
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Re: Row distribution - HBase - [mail # user]
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...Looks like you have only one region in your table. Right? If you want your writes to be distributed from the start (without waiting for HBase to fill table enough to split it in many r...
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Author: Alex Baranau,
2012-07-26, 14:16
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Re: Modify rowKey in prePut hook - HBase - [mail # user]
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...I don't think you can do this. Other than the fact that you cannot change Put's row key (there's simply no interface for that), consider the following notes: Note-1: row key is used by...
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Author: Alex Baranau,
2012-07-25, 14:17
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Re: Row distribution - HBase - [mail # user]
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...Hi Mohit, 1. When talking about particular table: For viewing rows distribution you can check out how regions are distributed. And each region defined by the start/stop key, so d...
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Author: Alex Baranau,
2012-07-25, 13:53
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Re: Rowkey hashing to avoid hotspotting - HBase - [mail # user]
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...Heh. Usually it is not good to have more than two or three, actually. See [1], and may be also [2]. Alex Baranau Sematext :: http://blog.sematext.com/ :: Hadoop - HBase - ElasticSearch...
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Author: Alex Baranau,
2012-07-19, 15:22
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Re: Bulk Import & Data Locality - HBase - [mail # user]
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...Thank you a lot for the replies. To me it is clear when data locality gets broken though (and it is not only the failure of the RS, there are other cases). I was hoping more for sugges...
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Author: Alex Baranau,
2012-07-19, 02:53
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Re: Rowkey hashing to avoid hotspotting - HBase - [mail # user]
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...You might be right, when reading load concentrated on single/several RS they will not act as dead as when it is hotspotting during writing. I think I referred more to "uneven read load distr...
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Author: Alex Baranau,
2012-07-17, 18:49
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Re: Scan only talks to a single region server - HBase - [mail # user]
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...Sorry, meant to ask how do you instantiate HTable, configuration objects. Alex Baranau Sematext :: http://blog.sematext.com/ :: Hadoop - HBase - ElasticSearch - Solr On Tue, Jul ...
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Author: Alex Baranau,
2012-07-17, 16:02
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Re: Rowkey hashing to avoid hotspotting - HBase - [mail # user]
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...The most common reason for RS hotspotting during writing data in HBase is writing rows with monotonically increasing/decreasing row keys. E.g. if you put timestamp in the first part of your ...
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Author: Alex Baranau,
2012-07-17, 15:53
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Re: Scan only talks to a single region server - HBase - [mail # user]
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...How do you create your scan(ner)? Could you paste the code here? You know that when HBase table is used as a source for MapReduce job (via standard configuration), each Map task consum...
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Author: Alex Baranau,
2012-07-17, 15:37
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