HBase Locality Checker
----------------------
Key: HBASE-4491
URL: https://issues.apache.org/jira/browse/HBASE-4491
Project: HBase
Issue Type: New Feature
Reporter: Liyin Tang
Assignee: Liyin Tang
If we run data node and region server in the same physical machine, region
server will be benefit if the store files for its serving regions have a local
replica in the data node process.
So for each regions, there exists a best locality region server which has most
local blocks for this region.
The HBase Locality Checker will show how many regions is running on its best
locality region server.
The higher the number is, the more performance benefits HBase can get from data
locality.
Also there would be a followup task to use these region locality information
for region assignment. Assignment manager will prefer assign regions to its
best locality region server.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators:
https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira
