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Hudson commented on HBASE-17786: -------------------------------- FAILURE: Integrated in Jenkins build HBase-Trunk_matrix #2998 (See [https://builds.apache.org/job/HBase-Trunk_matrix/2998/]) HBASE-17786 Create LoadBalancer perf-test tool to benchmark Load (busbey: rev da68537ae63ffbfc784de4dd6159d5d24f23f262) * (edit) hbase-server/src/test/java/org/apache/hadoop/hbase/master/balancer/BalancerTestBase.java * (edit) hbase-server/src/main/java/org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.java * (edit) hbase-server/src/test/java/org/apache/hadoop/hbase/master/balancer/TestFavoredStochasticLoadBalancer.java * (edit) hbase-server/src/test/java/org/apache/hadoop/hbase/master/balancer/TestBaseLoadBalancer.java * (add) hbase-server/src/test/java/org/apache/hadoop/hbase/master/balancer/LoadBalancerPerformanceEvaluation.java * (edit) hbase-server/src/main/java/org/apache/hadoop/hbase/master/LoadBalancer.java > Create LoadBalancer perf-tests (test balancer algorithm decoupled from > workload) > -------------------------------------------------------------------------------- > > Key: HBASE-17786 > URL: https://issues.apache.org/jira/browse/HBASE-17786 > Project: HBase > Issue Type: Sub-task > Components: Balancer, proc-v2 > Reporter: stack > Assignee: Umesh Agashe > Labels: beginner > Fix For: 2.0.0 > > Attachments: HBASE-17786.001.patch, HBASE-17786.002.patch, > HBASE-17786.002.patch > > > (Below is a quote from [~mbertozzi] taken from an internal issue that I'm > moving out here) > Add perf tools and keep monitored balancer performance (a BalancerPE-type > thing). > Most of the balancers should be instantiable without requiring a > mini-cluster, and it easy to create tons of RegionInfo and ServerNames with a > for loop. > The balancer is just creating a map RegionInfo:ServerName. > There are two methods to test roundRobinAssignment() and retainAssignment() > {code} > Map<ServerName, List<HRegionInfo>> roundRobinAssignment( > List<HRegionInfo> regions, > List<ServerName> servers > ) throws HBaseIOException; > Map<ServerName, List<HRegionInfo>> retainAssignment( > Map<HRegionInfo, ServerName> regions, > List<ServerName> servers > ) throws HBaseIOException; > {code} > There are a bunch of obvious optimization that everyone can see just by > looking at the code. (like replacing array with set when we do > contains/remove operations). It will be nice to have a baseline and start > improving from there. -- This message was sent by Atlassian JIRA (v6.3.15#6346)