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RE: Retrieving rows with specific values using SinglieColumnValueFilter - HBase - [mail # user]
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...Hi Suresh I would like to use startRow() and stopRow() on a scan, but these To set the start and stopRow you need to know the rowkey. between column values "DEBUG:xxxxx" and "yyy...
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Author: Ramkrishna.S.Vasudevan,
2012-10-16, 04:48
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mutateRow() does not check for checkResources() and startRegionOperation() - HBase - [mail # dev]
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...Hi devs Any specific reason why mutateRow() does not check for checkResources() and startRegionOperation()? I think it should be right. Because if memstore is great...
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Author: Ramkrishna.S.Vasudevan,
2012-10-15, 11:58
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RE: hmaster and regionserver died - HBase - [mail # user]
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...Hi Sorry if my reply mislead you. I meant to see the GC logs that should give you an idea of if Full GC happened. Regards Ram ...
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Author: Ramkrishna.S.Vasudevan,
2012-10-15, 08:00
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RE: Debugging Coprocessor code in Eclipse - HBase - [mail # user]
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...Hi Anil We also do a lot of stuff with coprocessors MasterObservers, RegionObservers and WALObservers. Just start your master and RS in debug mode and connect remotely from eclipse. &n...
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Author: Ramkrishna.S.Vasudevan,
2012-10-15, 05:03
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RE: Delete by timestamp? - HBase - [mail # user]
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...Also just see the discussions over the JIRA which will help you to come out with more specific usecases that you want to implement. The example over there will surely help you out. Reg...
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Author: Ramkrishna.S.Vasudevan,
2012-10-15, 04:55
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RE: hmaster and regionserver died - HBase - [mail # user]
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...Check your GC configurations. Seems to that a Full GC has happened and the Zookeeper thought that to be session expiry. Regards Ram ...
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Author: Ramkrishna.S.Vasudevan,
2012-10-15, 04:36
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RE: Temporal in Hbase? - HBase - [mail # user]
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...Oops!! Anoop has just replied the same similar to mine :) Regards Ram ...
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Author: Ramkrishna.S.Vasudevan,
2012-10-11, 05:32
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RE: Temporal in Hbase? - HBase - [mail # user]
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...If your Column doesnot contain the given value means If the end_time qualifier is null still the row should be retrieved right? As far as I read what is temporal database (am not very ...
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Author: Ramkrishna.S.Vasudevan,
2012-10-11, 05:32
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RE: HBase table - distinct values - HBase - [mail # user]
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...Are you planning to use region splits? Can the rowkey have the deptno? Having dept no in another table, may be having a reverse mapping of deptno to empno may be helpful too if such qu...
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Author: Ramkrishna.S.Vasudevan,
2012-10-11, 04:52
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RE: Regarding Hbase tuning - Configuration at table level - HBase - [mail # user]
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...Hi The configurations in HBase are related to region server and based on the various operations. Like region flushes, region split, how compactions gets triggered and HFile block cache...
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Author: Ramkrishna.S.Vasudevan,
2012-10-11, 04:37
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