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Re: Fixing badly distributed table manually. - HBase - [mail # user]
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...Hello, I also found this fairly recent script here which can be used with Gnuplot to get a visual representation of data distribution across nodes: http://bobcopeland.com/blog/20...
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Author: David Koch,
2012-09-05, 08:40
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Re: Fixing badly distributed table manually. - HBase - [mail # user]
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...Hello, Thank you for your replies. We are using CDH4 HBase 0.92. Good call on the web interface. The port is blocked so I never really got a chance to test it. As far as manual re-bala...
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Author: David Koch,
2012-09-04, 21:42
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Fixing badly distributed table manually. - HBase - [mail # user]
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...Hello, A couple of questions regarding balancing of a table's data in HBase. a) What is the easiest way to get an overview of how a table is distributed across regions of a clust...
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Author: David Koch,
2012-09-04, 14:56
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Using timestamps as "transaction ids" for idempotent counters. - HBase - [mail # user]
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...Hello, I use a table for counting stuff and want to do updates by pushing increments rather than get -> add in application -> put. To ensure idempotence (i.e avoid over cou...
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Author: David Koch,
2012-08-24, 14:47
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Eliminating rows with many KVs using a custom filter. - HBase - [mail # user]
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...Hello, I implemented and deployed a custom HBase filter. All it does is omit rows which contain more than KeyValue pairs. The central part is implementing Filter filterKeyValue()...
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Author: David Koch,
2012-08-17, 12:58
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Re: Issue: "WARN client.HTable: Null regioninfo cell in keyvalues - HBase - [mail # user]
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...You were right, there was another row in .META. that needed to be deleted. The warning messages have stopped. Thank you. /David On Thu, Aug 16, 2012 at 5:47 PM, Stack wrote...
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Author: David Koch,
2012-08-17, 12:31
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Re: Issue: "WARN client.HTable: Null regioninfo cell in keyvalues - HBase - [mail # user]
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...Hello, Thank you for your detailed response. I did the delete in .META. - the table does now not exist anymore according to hbase hbck and hbase shell however the warning message...
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Author: David Koch,
2012-08-16, 12:46
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Re: Issue: "WARN client.HTable: Null regioninfo cell in keyvalues - HBase - [mail # user]
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...Hello, It's a fully-distributed environment (CDH3). Hbase hbck sometimes reports inconsistencies like: ERROR: Region { meta => _myTable,,1344936991240.979b3fe3ced9016372a82b7a...
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Author: David Koch,
2012-08-14, 22:42
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Issue: "WARN client.HTable: Null regioninfo cell in keyvalues - HBase - [mail # user]
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...Hello, I created an Hbase table programatically like so: String tableName = "_myTable" HBaseAdmin admin = new HBaseAdmin(); if (admin.tableExists(outTable) == false) { HTableDesc...
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Author: David Koch,
2012-08-14, 14:10
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Re: Printing integers in the Hbase shell - HBase - [mail # user]
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...Hi Anil, Thank you for your advice. On Sat, Aug 11, 2012 at 10:12 PM, anil gupta wrote: ...
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Author: David Koch,
2012-08-12, 11:52
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