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Re: 答复: Possibility of using timestamp as row key in HBase - HBase - [mail # user]
...Maybe you can try HBaseWD, http://blog.sematext.com/2012/04/09/hbasewd-avoid-regionserver-hotspotting-despite-writing-records-with-sequential-keys/ https://github.com/sematext/HBaseWD  ...
   Author: Bing Jiang, 2013-06-20, 04:37
Re: Hbase configuration for large memory machine - HBase - [mail # user]
...There are two choices: 1) Try to use memory file system, and build hdfs upon it. 2) Try to open multi-rs in each physical machine.  Good luck.     2013/6/8 Nai Yan.   &nb...
   Author: Bing Jiang, 2013-06-09, 04:40
Re: Extending HBase Metrics Framework - HBase - [mail # user]
...1) Metrics infos have been collected from HMaster\RS, and covering rpc, jvm, hbase functional module (like compaction\flush\request Count\DataBlock read &&write etc).  2) You can set me...
   Author: Bing Jiang, 2013-06-06, 07:42
Re: Risk about RS logs clean ? - HBase - [mail # user]
...Hi,Sergey. The version of hbase in our environment is 0.94.3, and the FSHLog.java comes from 0.95 or version above. And it adds such codes in FSHLog::cleanOldLogs,  long oldestOutstandi...
   Author: Bing Jiang, 2013-05-23, 01:27
Re: GET performance degrades over time - HBase - [mail # user]
...Have you checked your HBase environment? I think it perhaps come from: 1) System uses more swap frequently when your continue to execute Gets operation? 2) check the setting "hfile.block.cac...
   Author: Bing Jiang, 2013-05-16, 10:49
Re: Error about rs block seek - HBase - [mail # user]
...hi, Anoop. I do not handle or change the hbase checksum.  So I want to know if I set block size at the beginning of creating tables, does something make troubles?   2013/5/13 Anoop...
   Author: Bing Jiang, 2013-05-13, 08:06
how to evaluate the up-limit number of Regions? - HBase - [mail # user]
...hi,all I want to know whether it it a criterio or bible to measure the capicity of hbase cluster. 1. hdfs volumn 2. system memory setting 3. Network IO, etc However, with the increase of num...
   Author: Bing Jiang, 2013-04-17, 03:47
Efficient way to use different storage medium - HBase - [mail # user]
...hi,  There are some physical machines which each one contains a large ssd(2T) and general disk(4T), and we want to build our hdfs and hbase environment.  If we use all storage(6T) ...
   Author: Bing Jiang, 2013-04-09, 11:41
[HBASE-7101] HBase stuck in Region SPLIT - HBase - [issue]
...I found this issue from a zknode which has existed for a long time in the unassigned parent.And HMaster report warnning log increasingly.The loop log is at below. WARN org.apache.hadoop.hbas...
http://issues.apache.org/jira/browse/HBASE-7101    Author: Bing Jiang, 2013-01-27, 08:02
the impact of different HFileDataBlockEncoder. - HBase - [mail # user]
...hi,all I have questions about HFileDataBlockEncoder.  1) In new version beyond 0.94, is there another HFileDataBlockEncoder impl?  2) how the different HFileDataBlockEncoder impact...
   Author: Bing Jiang, 2013-01-17, 09:19
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