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https://issues.apache.org/jira/browse/HBASE-5737?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ramkrishna.s.vasudevan updated HBASE-5737:
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Summary: Minor Improvements related to balancer. (was: Use a treemap
instead of hashmap in in AM.getAssignmentByTable used in balancer)
There are few more changes that we can do here
-> Currently two different balancer objects are created in AssignmentManager
and HMaster. Unify them
-> balancer.randomAssignment() is getting called once but based on whether the
existingplan is null or if it is a force plan we either use the randomplan or
not.
Ideally if we are extending a new balancer then randomAssignment will be called
but later the plan given by randomAssignment may not be used.
> Minor Improvements related to balancer.
> ---------------------------------------
>
> Key: HBASE-5737
> URL: https://issues.apache.org/jira/browse/HBASE-5737
> Project: HBase
> Issue Type: Improvement
> Components: master
> Reporter: ramkrishna.s.vasudevan
> Assignee: ramkrishna.s.vasudevan
> Priority: Minor
>
> Currently in Am.getAssignmentByTable() we use a result map which is currenly
> a hashmap. It could be better if we have a treeMap. Even in
> MetaReader.fullScan we have the treeMap only so that we have the naming order
> maintained. I felt this change could be very useful in cases where we are
> extending the DefaultLoadBalancer.
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