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[HBASE-8836] Separate reader and writer thread pool in RegionServer, so that write throughput will not be impacted when the read load is very high - HBase - [issue]
...We found that when the read load on a specific RS is high, the write throughput also get impacted dramatically, and even cause write data loss sometimes. We want to prioritize the write by p...
http://issues.apache.org/jira/browse/HBASE-8836    Author: Tianying Chang, 2013-10-28, 17:09
RE: Hbase 0.96 and Hadoop 2.2 - HBase - [mail # user]
...What is your HBase version and Hadoop version? There is a RPC break change in hadoop 2.2. As a workaround,  I removed the hadoop hadoop-common- and hadoop-hdfs-2.2.0...
   Author: Tianying Chang, 2013-10-23, 18:34
RE: Hbase 95 on Hadoop 2. No master znode created in zookeeper - HBase - [mail # user]
...Thanks for the information. We will get 96 installed instead.   Thanks Tian-Ying   From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of Stack Sent: Thursday, October 10,...
2 emails [+ more]    Author: Tianying Chang, 2013-10-11, 00:37
RE: Error starting Hbase 95 in Hadoop 2.0 - HBase - [mail # user]
...Ted, thanks for the link,   I tried this below by replacing it to use ShellBasedUnixGroupsMapping in hbase-site.xml, but still same error.   the below paragraph is confusing to me....
2 emails [+ more]    Author: Tianying Chang, 2013-10-07, 17:23
openTSDB   lose large amount of data when the client are writing - HBase - [mail # user]
...Hi,   I have a customer who use openTSDB. Recently we found that only less than 10% data are written, rest are are lost. By checking the RS log, there are many row lock related issues, ...
   Author: Tianying Chang, 2013-09-19, 17:09
RE: deploy saleforce phoenix coprocessor to hbase/lib?? - HBase - [mail # user]
...James, thanks for the explain.  So my understanding is the Phoenix wraps around HBase client API to create a  Pheonix table. Within this wrapper, it will call a "alter table" with ...
2 emails [+ more]    Author: Tianying Chang, 2013-09-11, 18:37
RE: split region - HBase - [mail # user]
...I think the feature of using encoded name for split is only available in 94, not in 92?  In 92, you have to use the full name as you first tried. Unfortunately there is bug for certain ...
   Author: Tianying Chang, 2013-07-15, 17:49
How to turn off WAL from hbase shell or config file? - HBase - [mail # user]
...Hi,  I am trying to do some performance testing, and want to test when the WAL is turned off. I know there is API writeToWAL(false) to do this, but if I want to just change the setting ...
   Author: Tianying Chang, 2013-06-19, 17:00
RE: Inconsistent Table HBCK - HBase - [mail # user]
...Hi, Jean-Marc  We saw this error in our cluster twice, We unblocked our production cluster by manually fixing the problem. I haven't spent more time in root cause or auto fix the issue ...
2 emails [+ more]    Author: Tianying Chang, 2013-05-29, 16:50
[HBASE-7896] make rename_table working in 92/94 - HBase - [issue]
...The rename_table function is very useful for our customers. However, rename_table.rb does not work for 92/94. It has several bugs. It will be useful to fix them so that users can solve their...
http://issues.apache.org/jira/browse/HBASE-7896    Author: Tianying Chang, 2013-05-23, 18:35
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