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https://issues.apache.org/jira/browse/HBASE-5959?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13276942#comment-13276942
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Phabricator commented on HBASE-5959:
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eclark has commented on the revision "HBASE-5959 [jira] Add other load
balancers".
I'll get the config storing in the next version
INLINE COMMENTS
src/main/java/org/apache/hadoop/hbase/master/balancer/StochasticLoadBalancer.java:241
There are already config paramaters with balancer.<configName> we should keep
the hierarchy.
src/main/java/org/apache/hadoop/hbase/master/balancer/StochasticLoadBalancer.java:256
And I actually think it should be given a lower weight as the table cost is
something that represents an on going cost to the cluster and the locality cost
is a one time transfer. The impetus for doing this work was that we saw
production clusters that were no balancing because the old balancer did not
want to move regions around to balance the number of regions per table
(Something I've seen on several different production clusters now; a real issue
on anything that has big batch jobs). Placing locality's weight above table
cost would just mean that the same thing could happen.
However I think the middle ground combined with the ability to change per
install is enough without testing on production clusters.
src/main/java/org/apache/hadoop/hbase/master/balancer/StochasticLoadBalancer.java:251
Nope I'll add that in my next version.
REVISION DETAIL
https://reviews.facebook.net/D3189
To: JIRA, eclark
Cc: tedyu
> Add other load balancers
> ------------------------
>
> Key: HBASE-5959
> URL: https://issues.apache.org/jira/browse/HBASE-5959
> Project: HBase
> Issue Type: New Feature
> Components: master
> Affects Versions: 0.96.0
> Reporter: Elliott Clark
> Assignee: Elliott Clark
> Attachments: HBASE-5959-0.patch, HBASE-5959-1.patch,
> HBASE-5959-2.patch, HBASE-5959-3.patch, HBASE-5959-6.patch,
> HBASE-5959-7.patch, HBASE-5959.D3189.1.patch, HBASE-5959.D3189.2.patch,
> HBASE-5959.D3189.3.patch, HBASE-5959.D3189.4.patch
>
>
> Now that balancers are pluggable we should give some options.b
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