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Re: Multiple Aggregate functions in map reduce program - HBase - [mail # user]
...Hi,  ideally you want to "scan" through data once and the the (sum,count).  One simple solution is write your own map-reduce with key = department, value = new VectorWritable(vecto...
   Author: Khang Pham, 2012-10-05, 07:15
Re: region servers failing due to bad datanode - HBase - [mail # user]
...Hi,  Can you go to HDFS and check if you have the file:blk_-7841650651979512601_ 775949 and its size ?  Its location is probably somewhere in /hbase/.logs/, 60020,1345222869339/%2C...
   Author: Khang Pham, 2012-08-20, 14:51
Re: -ROOT-, .META. will stay OFFLINE after installing in hbase-0.94.0 - HBase - [mail # user]
...Hi,  what do you means stay OFFLINE ? Can you use hbase shell and do these queries:  - scan '-ROOT-' - scan '.META.', {COLUMNS => 'info:server', LIMIT => 10}  Can you go...
   Author: Khang Pham, 2012-08-03, 06:01
Re: Recommend protocol connecting to HBASE - HBase - [mail # user]
...Hi,  I used Thrift 0.8 and Hbase 0.20.6. My app is in R languagge and everything works just fine.   On Mon, Jul 30, 2012 at 3:12 AM, Harsh J  wrote:  ...
   Author: Khang Pham, 2012-07-30, 03:33
Re: Cluster load - HBase - [mail # user]
...Hi,  by node do you mean regionserver node ?  if you referring to RegionServer node: you can go to the hbase master web interface master:65510/master.jsp to see load for each regio...
   Author: Khang Pham, 2012-07-27, 07:16
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