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[HDFS-6010] Make balancer able to balance data among specified servers - HDFS - [issue]
...Currently, the balancer tool balances data among all datanodes. However, in some particular case, we would need to balance data only among specified nodes instead of the whole set.In this JI...
http://issues.apache.org/jira/browse/HDFS-6010    Author: Yu Li, 2014-07-31, 08:01
[HBASE-10932] Improve RowCounter to allow mapper number set/control - HBase - [issue]
...The typical use case of RowCounter is to do some kind of data integrity checking, like after exporting some data from RDBMS to HBase, or from one HBase cluster to another, making sure the ro...
http://issues.apache.org/jira/browse/HBASE-10932    Author: Yu Li, 2014-04-25, 20:05
[HBASE-10872] Duplicated snapshot taken op in StoreFlusherImpl#prepare method in v94 - HBase - [issue]
...This issue is a regression caused by v94 patch of HBASE-10648...
http://issues.apache.org/jira/browse/HBASE-10872    Author: Yu Li, 2014-03-31, 16:10
[HDFS-6009] Tools based on favored node feature for isolation - HDFS - [issue]
...There're scenarios like mentioned in HBASE-6721 and HBASE-4210 that in multi-tenant deployments of HBase we prefer to specify several groups of regionservers to serve different applications,...
http://issues.apache.org/jira/browse/HDFS-6009    Author: Yu Li, 2014-03-14, 16:12
Re: Hadoop support for Power Linux ? - Hadoop - [mail # user]
...Hi Nikshe,AFAIK, IBM BigInsights have such support. You can get more information frombelow links:http://www-01.ibm.com/software/data/infosphere/biginsights/http://www-03.ibm.com/systems/powe...
   Author: Yu Li, 2014-02-26, 10:04
Please help review HDFS-6009: tools for datanode-level io isolation - HDFS - [mail # dev]
...Dear all,In our product env we find a need to do some datanode-level io isolation,and worked out a solution using favored node(HDFS-2576). Simply speaking,we arrange logical datanode group f...
   Author: Yu Li, 2014-02-25, 11:33
[HDFS-6012] Tool for checking whether all blocks under a path are placed on specified nodes - HDFS - [issue]
...As mentioned in HDFS-6009, if datanodes are grouped for isolation purpose, we need to check whether there're "cross-group" placed blocks for a specified path, and move those cross-group bloc...
http://issues.apache.org/jira/browse/HDFS-6012    Author: Yu Li, 2014-02-25, 09:21
[HDFS-6011] Make it able to specify balancer bandwidth for specified nodes - HDFS - [issue]
...Currently, we can only specify balancer bandwidth for all datanodes. However, in some particular case, we would need to balance data only among specified nodes thus don't need to throttle ba...
http://issues.apache.org/jira/browse/HDFS-6011    Author: Yu Li, 2014-02-25, 02:55
[expand - 1 more] - Re: Is there a way to get a Block through block id? - HDFS - [mail # dev]
...Hi Colin,  Thanks for the reply. I guess you're referring to the below methods? If so, I'm afraid it can only get an empty block but not the real block I really want to move. ==========...
   Author: Yu Li, 2014-01-22, 06:00
[HDFS-5706] Should reset Balancer.Parameters.DEFALUT.policy in TestBalancer - HDFS - [issue]
...Now in TestBalancer.java, more than one test case will invoke the private method runBalancer, in which it will use Balancer.Parameters.Default, while the policy is never reset thus its total...
http://issues.apache.org/jira/browse/HDFS-5706    Author: Yu Li, 2013-12-30, 06:02
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