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Re: HBase parallel scanner performance - HBase - [mail # user]
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...Narendra, Are you trying to solve a real problem, or is this a class project? Your solution doesn't scale. It's a non starter. 130 seconds for each iterat ion times 1 million se...
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Author: Michel Segel,
2012-04-19, 14:12
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Re: HBase parallel scanner performance - HBase - [mail # user]
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...So in your step 2 you have the following: FOREACH row IN TABLE alpha: SELECT something FROM TABLE alpha WHERE alpha.url = row.url...
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Author: Michel Segel,
2012-04-19, 11:10
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Re: Storing extremely large size file - HBase - [mail # user]
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...Look, I don't want to be *that* guy, but just my $0.02 cents ... I don't disagree that this topic doesn't come up all the time. But you have a couple of issues. What do you cons...
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Author: Michel Segel,
2012-04-18, 11:57
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Re: Is it possible to install two different Hbase versions in the same Cluster? - HBase - [mail # user]
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...Well, you could, however you run a greater risk of things breaking because y ou forgot to change a setting in the configuration file. You would have to c hange port listeners, location of co...
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Author: Michel Segel,
2012-04-16, 12:47
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Re: Is it possible to install two different Hbase versions in the same Cluster? - HBase - [mail # user]
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...Sure, just make sure you don't cross the configurations and don't put the RS on the same nodes. Sent from a remote device. Please excuse any typos... Mike Segel On A...
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Author: Michel Segel,
2012-04-16, 11:33
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Re: efficient export w/o HDFS/copying - HBase - [mail # user]
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...Wouldn't that mean having the NAS attached to all of the nodes in the cluste r? Sent from a remote device. Please excuse any typos... Mike Segel On Mar 26, 2012, at 11:07 ...
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Author: Michel Segel,
2012-03-28, 07:59
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Re: Confirming a Bug - HBase - [mail # user]
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...Peter, that doesnt make sense. I mean I believe you in what you are saying, but don't see how a VPN in woul d cause this variance in results. Do you have any speculative executi...
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Author: Michel Segel,
2012-03-23, 11:55
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Re: hbase.cluster.distributed set to true but it says false - HBase - [mail # user]
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...1) your configuration is sub optimal so toss performance out the window. You appear to be on vms. Toss performance out the window. 2) sounds like you are picking up the default v...
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Author: Michel Segel,
2012-03-23, 11:46
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Re: multiple puts in reducer? - HBase - [mail # user]
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...There is nothing wrong in writing the output from a reducer to HBase. The question you have to ask yourself is why are you using a reducer in the f irst place. ;-) Look, you have...
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Author: Michel Segel,
2012-02-29, 13:18
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Re: multiple puts in reducer? - HBase - [mail # user]
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...The assertion is that for most cases you shouldn't need one. That the rule o f thumb is that you should have to defend your use of one. Reducers are expensive. Running multiple mapper...
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Author: Michel Segel,
2012-02-29, 13:04
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