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https://issues.apache.org/jira/browse/HBASE-13965?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14652936#comment-14652936
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Hudson commented on HBASE-13965:
--------------------------------
SUCCESS: Integrated in HBase-1.3-IT #68 (See
[https://builds.apache.org/job/HBase-1.3-IT/68/])
HBASE-13965 Revert due to test failure in TestAssignmentManager (tedyu: rev
24dbe25e95d0a355b2e07aa94b5921ff4b4865e9)
*
hbase-server/src/main/java/org/apache/hadoop/hbase/master/balancer/MetricsBalancer.java
*
hbase-server/src/main/java/org/apache/hadoop/hbase/master/balancer/MetricsStochasticBalancer.java
* hbase-server/src/main/java/org/apache/hadoop/hbase/master/HMaster.java
*
hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/master/balancer/MetricsStochasticBalancerSourceImpl.java
*
hbase-server/src/main/java/org/apache/hadoop/hbase/master/balancer/FavoredNodeLoadBalancer.java
*
hbase-server/src/main/java/org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.java
* hbase-server/src/main/java/org/apache/hadoop/hbase/master/RegionStates.java
*
hbase-hadoop2-compat/src/main/resources/META-INF/services/org.apache.hadoop.hbase.master.balancer.MetricsStochasticBalancerSource
*
hbase-hadoop-compat/src/main/java/org/apache/hadoop/hbase/master/balancer/MetricsStochasticBalancerSource.java
*
hbase-server/src/main/java/org/apache/hadoop/hbase/master/balancer/SimpleLoadBalancer.java
* hbase-server/src/main/java/org/apache/hadoop/hbase/master/LoadBalancer.java
*
hbase-server/src/test/java/org/apache/hadoop/hbase/TestStochasticBalancerJmxMetrics.java
*
hbase-server/src/main/java/org/apache/hadoop/hbase/master/balancer/StochasticLoadBalancer.java
* hbase-common/src/main/java/org/apache/hadoop/hbase/HConstants.java
*
hbase-server/src/test/java/org/apache/hadoop/hbase/master/balancer/TestBaseLoadBalancer.java
> Stochastic Load Balancer JMX Metrics
> ------------------------------------
>
> Key: HBASE-13965
> URL: https://issues.apache.org/jira/browse/HBASE-13965
> Project: HBase
> Issue Type: Improvement
> Components: Balancer, metrics
> Reporter: Lei Chen
> Assignee: Lei Chen
> Fix For: 2.0.0
>
> Attachments: 13965-addendum.txt, HBASE-13965-v10.patch,
> HBASE-13965-v11.patch, HBASE-13965-v3.patch, HBASE-13965-v4.patch,
> HBASE-13965-v5.patch, HBASE-13965-v6.patch, HBASE-13965-v7.patch,
> HBASE-13965-v8.patch, HBASE-13965-v9.patch, HBASE-13965_v2.patch,
> HBase-13965-JConsole.png, HBase-13965-v1.patch,
> stochasticloadbalancerclasses_v2.png
>
>
> Today’s default HBase load balancer (the Stochastic load balancer) is cost
> function based. The cost function weights are tunable but no visibility into
> those cost function results is directly provided.
> A driving example is a cluster we have been tuning which has skewed rack size
> (one rack has half the nodes of the other few racks). We are tuning the
> cluster for uniform response time from all region servers with the ability to
> tolerate a rack failure. Balancing LocalityCost, RegionReplicaRack Cost and
> RegionCountSkew Cost is difficult without a way to attribute each cost
> function’s contribution to overall cost.
> What this jira proposes is to provide visibility via JMX into each cost
> function of the stochastic load balancer, as well as the overall cost of the
> balancing plan.
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