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Hudson commented on HBASE-13965: -------------------------------- FAILURE: Integrated in HBase-1.3-IT #72 (See [https://builds.apache.org/job/HBase-1.3-IT/72/]) HBASE-13965 Stochastic Load Balancer JMX Metrics (Lei Chen) (tedyu: rev 6a2b618d97c13320bb91a5f555827437099e3a26) * hbase-server/src/main/java/org/apache/hadoop/hbase/master/balancer/SimpleLoadBalancer.java * hbase-server/src/main/java/org/apache/hadoop/hbase/master/balancer/FavoredNodeLoadBalancer.java * hbase-server/src/main/java/org/apache/hadoop/hbase/master/HMaster.java * hbase-server/src/main/java/org/apache/hadoop/hbase/master/LoadBalancer.java * hbase-hadoop-compat/src/main/java/org/apache/hadoop/hbase/master/balancer/MetricsStochasticBalancerSource.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/RegionStates.java * hbase-server/src/main/java/org/apache/hadoop/hbase/master/balancer/MetricsBalancer.java * hbase-server/src/test/java/org/apache/hadoop/hbase/TestStochasticBalancerJmxMetrics.java * hbase-common/src/main/java/org/apache/hadoop/hbase/HConstants.java * hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestAssignmentManager.java * hbase-server/src/main/java/org/apache/hadoop/hbase/master/balancer/MetricsStochasticBalancer.java * hbase-server/src/test/java/org/apache/hadoop/hbase/master/balancer/TestBaseLoadBalancer.java * hbase-hadoop2-compat/src/main/resources/META-INF/services/org.apache.hadoop.hbase.master.balancer.MetricsStochasticBalancerSource * hbase-server/src/main/java/org/apache/hadoop/hbase/master/balancer/StochasticLoadBalancer.java * hbase-server/src/main/java/org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.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-branch-1-v2.patch, > HBASE-13965-branch-1.patch, 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. -- This message was sent by Atlassian JIRA (v6.3.4#6332)