Home | About | Sematext search-lucene.com search-hadoop.com
NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB
clear query|facets|time Search criteria: .   Results from 111 to 120 from 121 (0.129s).
Loading phrases to help you
refine your search...
[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
[HBASE-6908] Pluggable Call BlockingQueue for HBaseServer - HBase - [issue]
...Allow the BlockingQueue implementation class to be specified in the HBase config to enable different behavior than a FIFO queue. The use case we have is around fairness and starvation for bi...
http://issues.apache.org/jira/browse/HBASE-6908    Author: James Taylor, 2012-10-01, 22:12
[expand - 1 more] - Re: HBase aggregate query - HBase - [mail # user]
...No, there's no sorted dimension. This would be a full table scan over  40M rows. This assumes the following: 1) your regions are evenly distributed across a four node cluster 2) unique ...
   Author: James Taylor, 2012-09-13, 19:13
[HBASE-6137] RegionServer-level context and start/stop life-cycle methods for observer coprocessor - HBase - [issue]
...Coprocessors are a great way for an application to affect server-side processing. We're using observer coprocessors via the postScannerOpen to enable a scan to do aggregation. There's curren...
http://issues.apache.org/jira/browse/HBASE-6137    Author: James Taylor, 2012-08-06, 18:19
Re: aggregation performance - HBase - [mail # user]
...We're seen reasonable performance, with the caveat that you need to  parallelize the scan doing the aggregation. In our benchmarking, we have  the client scan each region in parall...
   Author: James Taylor, 2012-05-03, 17:02
Sort:
project
Phoenix (494)
HBase (121)
Drill (2)
Accumulo (1)
type
mail # user (71)
issue (25)
mail # dev (25)
date
last 7 days (0)
last 30 days (4)
last 90 days (6)
last 6 months (13)
last 9 months (121)
author
Ted Yu (1362)
Stack (981)
Andrew Purtell (773)
Jean-Daniel Cryans (730)
stack (711)
Jean-Marc Spaggiari (334)
Jimmy Xiang (310)
Jonathan Hsieh (298)
Enis Soztutar (273)
Elliott Clark (261)
lars hofhansl (254)
Lars Hofhansl (247)
Nick Dimiduk (230)
Nicolas Liochon (203)
Sergey Shelukhin (195)
Doug Meil (189)
Matteo Bertozzi (181)
ramkrishna.s.vasudevan (178)
Todd Lipcon (177)
Lars George (172)
Anoop Sam John (151)
Ryan Rawson (125)
Jonathan Gray (113)
Jesse Yates (106)
Michael Segel (96)
James Taylor
NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB