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Re: Overwrite a row - HBase - [mail # user]
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...Actually I do see it in the 0.94 JavaDocs ( http://hbase.apache.org/0.94/apidocs/org/apache/hadoop/hbase/client/HTable.html#mutateRow(org.apache.hadoop.hbase.client.RowMutations) ), so may b...
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Author: Mohamed Ibrahim,
2013-04-19, 20:41
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Re: Overwrite a row - HBase - [mail # user]
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...It seems that 0.95 is not released yet, mutateRow won't be a solution for now. I saw it in the downloads and I thought it was released. On Fri, Apr 19, 2013 at 4:18 PM, Mohamed Ibrahi...
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Author: Mohamed Ibrahim,
2013-04-19, 20:35
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Re: Overwrite a row - HBase - [mail # user]
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...Hello Kristoffer, HBase row mutations are atomic ( http://hbase.apache.org/acid-semantics.html ), which include put . So when you overwrite a row it is not possible for another process...
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Author: Mohamed Ibrahim,
2013-04-19, 18:11
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Re: HBase type support - HBase - [mail # user]
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...I'm not a lawyer, but I think we're ok as long as it's in source code as that is protected under freedom of speech in the US. See here ( http://en.wikipedia.org/wiki/Cryptography ) under Exp...
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Author: Mohamed Ibrahim,
2013-03-17, 17:24
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Re: Fastest way to find is a row exist? - HBase - [mail # user]
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...Sorry, I didn't notice your email about packing 500 operations before. You might actually benefit from checking with a batch of Gets vs individual exists. Best, Mohamed On...
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Author: Mohamed Ibrahim,
2013-01-05, 14:07
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Re: Fastest way to find is a row exist? - HBase - [mail # user]
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...What about HTable.exists ?? http://hbase.apache.org/apidocs/org/apache/hadoop/hbase/client/HTable.html#exists(org.apache.hadoop.hbase.client.Get) I think that should work if the Get ha...
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Author: Mohamed Ibrahim,
2013-01-04, 21:04
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Re: How to install Snappy? - HBase - [mail # user]
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...I got stuck like you before trying to setup snappy on hbase. Here what I recall I did from memory: I think you need to copy the snappy libs inside the hadoop lib/native, then point hba...
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Author: Mohamed Ibrahim,
2012-12-03, 02:10
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Re: hbase error - HBase - [mail # user]
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...Hello Wanli, Try checking /etc/hosts . Make sure that both localhost and are set to 127.0.0.1, and not 127.0.1.1 . Some distributions do that and it will sometimes give strange e...
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Author: Mohamed Ibrahim,
2012-11-22, 02:04
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Re: java.io.IOEcxeption key k1 followed by a smaller key k2 - HBase - [mail # user]
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...Hi Lars, That's exactly what I will be working on. I will update you as soon as I have that code. I'm travelling today, so it might be towards the end of the week. Thanks for the...
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Author: Mohamed Ibrahim,
2012-09-17, 17:00
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Re: java.io.IOEcxeption key k1 followed by a smaller key k2 - HBase - [mail # user]
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...Hello Lars / Stack, Thank you for responding. The date on the files is March 9th 2012. It's been up since then, I restarted hbase and hadoop once. I only have a single node that ...
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Author: Mohamed Ibrahim,
2012-09-17, 02:13
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