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best way to get HBase version from coprocessor? - HBase - [mail # dev]
...What's the best/recommended way of getting the HBase version during  coprocessor execution? Should I get the "hbase.defaults.for.version"  through the RegionCoprocessorEnvironment ...
   Author: James Taylor, 2013-02-18, 19:55
[expand - 1 more] - Re: Row Key Design in time based aplication - HBase - [mail # user]
...Michael is right - Phoenix wouldn't automatically solve these issues for  you - it would just a) decrease the amount of code you need to write  while still giving you coprocessor-s...
   Author: James Taylor, 2013-02-18, 01:19
Re: Custom preCompact RegionObserver crashes entire cluster on OOME: Heap Space - HBase - [mail # user]
...IMO, I don't think it's safe to change the KV in-place. We always create a new KV in our coprocessors.  James  On Feb 12, 2013, at 6:41 AM, "Mesika, Asaf"  wrote:  ...
   Author: James Taylor, 2013-02-12, 15:32
jarFilePath for HTableDescriptor.addCoprocessor() with 0.94.2 vs 0.94.4 - HBase - [mail # user]
...In 0.94.2, if the coprocessor class was on the HBase classpath, then the  jarFilePath argument to HTableDescriptor.addCoprocessor seemed to  essentially be ignored - it didn't matt...
   Author: James Taylor, 2013-02-12, 00:07
[HBASE-7805] Scan of same region processed serially if table has region observer coprocessor - HBase - [issue]
...If multiple scans to different parts of the same region are executed in parallel, they are processed serially if the table has a region observer coprocessor....
http://issues.apache.org/jira/browse/HBASE-7805    Author: James Taylor, 2013-02-11, 05:21
[expand - 3 more] - Re: independent scans to same region processed serially - HBase - [mail # user]
...Filed https://issues.apache.org/jira/browse/HBASE-7805 Test case attached It occurs only if the table has a region observer coprocessor.       James  On 02/09/2013 11:04 ...
   Author: James Taylor, 2013-02-10, 08:30
Re: How would you model this in Hbase? - HBase - [mail # user]
...Another approach would be to use Phoenix  (http://github.com/forcedotcom/phoenix). You can model your schema as  you would in the relational world, but you get the horizontal  ...
   Author: James Taylor, 2013-02-06, 22:01
Re: Query on JSON Object - HBase - [mail # user]
...You can use a utility like this one to convert from JSON to CSV (https://github.com/zeMirco/json2csv) and then Phoenix (https://github.com/forcedotcom/phoenix) to create a table and upload t...
   Author: James Taylor, 2013-02-06, 16:30
Re: Parallel scan in HBase - HBase - [mail # user]
...If you run a SQL query that does aggregation (i.e. uses a built-in  aggregation function like COUNT or does a GROUP BY), Phoenix will  orchestrate the running of a set of queries i...
   Author: James Taylor, 2013-02-01, 17:07
[expand - 1 more] - Re: Announcing Phoenix: A SQL layer over HBase - HBase - [mail # user]
...Thanks, everyone, and sorry to keep you waiting :-)  We're using Phoenix in lots of different use cases and product areas at  Salesforce: Product Metrics Data Archival Server Metri...
   Author: James Taylor, 2013-02-01, 16:49
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