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Re: Question on Coprocessors and Atomicity - HBase - [mail # dev]
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...Jesse: Yeah - given that I want this to be atomically done, I'm wondering if this would even work (because, I believe I'd need to unlock the row so that the checkAndMutate can take the...
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Author: Suraj Varma,
2011-12-04, 16:39
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Re: Question on Coprocessors and Atomicity - HBase - [mail # dev]
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...Thanks - I see that the lock is taken internal to checkAndMutate. I'm wondering whether it is a better idea to actually pass in a Constraint (or even Constraints) as the checkAndMutate...
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Author: Suraj Varma,
2011-12-04, 16:32
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Re: Question on Coprocessors and Atomicity - HBase - [mail # dev]
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...Just so my question is clear ... everything I'm suggesting is in the context of a single row (not cross row / table). - so, yes, I'm guessing obtaining a RowLock on the region side during pr...
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Author: Suraj Varma,
2011-12-04, 00:54
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Re: zookeeper quorum verification - HBase - [mail # user]
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...Yes - this makes sense. But, I thought what Rita suggested was a single appquorum dns entry ... which was surprising. Hence my question. On Sat, Dec 3, 2011 at 10:40 AM, Dave Bar...
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Author: Suraj Varma,
2011-12-04, 00:45
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Question on Coprocessors and Atomicity - HBase - [mail # dev]
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...I'm looking at the preCheckAndPut / postCheckAndPut api with coprocessors and I'm wondering ... are these pre/post checks done _after_ taking the row lock or is the row lock only done within...
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Author: Suraj Varma,
2011-12-03, 14:24
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Re: zookeeper quorum verification - HBase - [mail # user]
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...J-D: Did you mean that a _single_ dns entry returns all five ips belonging to individual zk nodes? Is this used only by "clients" ... or even within the cluster? And ... the zk nodes s...
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Author: Suraj Varma,
2011-12-03, 14:15
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Re: HRegionserver daemon is not running on region server node - HBase - [mail # user]
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...Ok. Can you run dos2unix against both your HBASE_HOME/bin and HBASE_HOME/conf directory? After this, restart your cluster and see if you are getting the same issue. On Sun...
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Author: Suraj Varma,
2011-11-28, 15:30
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Re: HRegionserver daemon is not running on region server node - HBase - [mail # user]
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...So - first of all: This indicates that the environment of the process running hbase-regionserver2 is not set correctly. It is not able to find the directory. Is hbase running as ...
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Author: Suraj Varma,
2011-11-27, 20:34
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Re: HRegionserver daemon is not running on region server node - HBase - [mail # user]
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...Vamshi: What OS are you trying this on? Is it Linux / Windows? You can use the *.dns.interface configurations to use the specific network interface that you want. That is, set th...
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Author: Suraj Varma,
2011-11-26, 20:35
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Re: Schema design question - Hot Key concerns - HBase - [mail # user]
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...Thanks for your response. As always ... it is currently on an RDBMS having scalability concerns ... and hence a nosql is being evaluated for this. :) In the quora link posted, To...
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Author: Suraj Varma,
2011-11-18, 22:57
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