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[HBASE-4435] Add Group By functionality using Coprocessors - HBase - [issue]
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...Adds in a Group By -like functionality to HBase, using the Coprocessor framework. It provides the ability to group the result set on one or more columns (groupBy families). It computes stati...
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http://issues.apache.org/jira/browse/HBASE-4435
Author: Nichole Treadway,
2013-01-02, 01:31
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[HBASE-3782] Multi-Family support for bulk upload tools causes File Not Found Exception - HBase - [issue]
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...I've been testing HBASE-1861 in 0.90.2, which adds multi-family support for bulk upload tools.I found that when running the importtsv program, some reduce tasks fail with a File Not Found ex...
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http://issues.apache.org/jira/browse/HBASE-3782
Author: Nichole Treadway,
2012-09-14, 00:32
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[HBASE-4223] Support the ability to return a set of rows using Coprocessors - HBase - [issue]
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...Currently HBase supports returning the results of aggregation operations using coprocessors with the AggregationClient. It would be useful to include a client and implementation which would ...
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http://issues.apache.org/jira/browse/HBASE-4223
Author: Nichole Treadway,
2012-08-23, 20:08
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Re: ZKConfig.makeZKProps throwing NullPointerException - HBase - [mail # user]
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...Sorry, I forgot to mention: I'm using hadoop-0.20-append, hbase-0.92 on two red hat 5.5 machines. The function I pasted is in org.apache.hadoop.hbase.zookeeper.ZKConfig. ...
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Author: Nichole Treadway,
2011-08-15, 12:47
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ZKConfig.makeZKProps throwing NullPointerException - HBase - [mail # user]
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...Hi all, I am getting the below error when trying to create a new HTable object (see end of email)... I believe the error is occuring in the below function because the getClassLoa...
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Author: Nichole Treadway,
2011-08-14, 23:27
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Re: Socket Timeout Exception when executing coprocessor - HBase - [mail # user]
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...Yes...each region has roughly 300,000 rows, 60 million rows total. The rows are large, ~ 20,000 bytes. But in my tests, I'm setting filters such that only 1 KV should be returned to th...
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Author: Nichole Treadway,
2011-06-29, 22:58
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Socket Timeout Exception when executing coprocessor - HBase - [mail # user]
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...I've implemented my own coprocessor client, protocol and implementation that returns back to the user a List of KeyValues with values that match some criteria. I've tested this on a small ta...
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Author: Nichole Treadway,
2011-06-29, 22:24
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Re: Migration Path for 0.90 to 0.91 - HBase - [mail # user]
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...No I was wondering about 0.91 actually....we are interested in the Coprocessor code there but have a development cluster running 0.90.1 right now. On Wed, Mar 30, 2011 at 3:27 PM, Jean...
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Author: Nichole Treadway,
2011-03-30, 19:35
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Migration Path for 0.90 to 0.91 - HBase - [mail # user]
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...All, Is there a migration path for upgrading between 0.90 and 0.91? Do we need to do data migration? Thank you, Nichole...
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Author: Nichole Treadway,
2011-03-30, 19:22
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Re: HRegionInfo was null or empty in -ROOT- - HBase - [mail # user]
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...In the master logs, I see messages like I've pasted below. I get the same behavior even when I stop master and restart it. I see the root and meta table regions listed in the region server u...
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Author: Nichole Treadway,
2011-03-30, 17:36
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