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package org.elasticsearch.benchmark.routing.allocation;
import org.elasticsearch.Version;
import org.elasticsearch.cluster.ClusterName;
import org.elasticsearch.cluster.ClusterState;
import org.elasticsearch.cluster.metadata.IndexMetaData;
import org.elasticsearch.cluster.metadata.MetaData;
import org.elasticsearch.cluster.node.DiscoveryNodes;
import org.elasticsearch.cluster.routing.RoutingTable;
import org.elasticsearch.cluster.routing.ShardRoutingState;
import org.elasticsearch.cluster.routing.allocation.AllocationService;
import org.elasticsearch.cluster.routing.allocation.RoutingAllocation;
import org.elasticsearch.common.settings.Settings;
import org.openjdk.jmh.annotations.Benchmark;
import org.openjdk.jmh.annotations.BenchmarkMode;
import org.openjdk.jmh.annotations.Fork;
import org.openjdk.jmh.annotations.Measurement;
import org.openjdk.jmh.annotations.Mode;
import org.openjdk.jmh.annotations.OutputTimeUnit;
import org.openjdk.jmh.annotations.Param;
import org.openjdk.jmh.annotations.Scope;
import org.openjdk.jmh.annotations.Setup;
import org.openjdk.jmh.annotations.State;
import org.openjdk.jmh.annotations.Warmup;
import java.util.Collections;
import java.util.concurrent.TimeUnit;
@Fork(3)
@Warmup(iterations = 10)
@Measurement(iterations = 10)
@BenchmarkMode(Mode.AverageTime)
@OutputTimeUnit(TimeUnit.MILLISECONDS)
@State(Scope.Benchmark)
@SuppressWarnings("unused") //invoked by benchmarking framework
public class AllocationBenchmark {
// Do NOT make any field final (even if it is not annotated with @Param)! See also
// http://hg.openjdk.java.net/code-tools/jmh/file/tip/jmh-samples/src/main/java/org/openjdk/jmh/samples/JMHSample_10_ConstantFold.java
// we cannot use individual @Params as some will lead to invalid combinations which do not let the benchmark terminate. JMH offers no
// support to constrain the combinations of benchmark parameters and we do not want to rely on OptionsBuilder as each benchmark would
// need its own main method and we cannot execute more than one class with a main method per JAR.
@Param({
// indices, shards, replicas, nodes
" 10, 1, 0, 1",
" 10, 3, 0, 1",
" 10, 10, 0, 1",
" 100, 1, 0, 1",
" 100, 3, 0, 1",
" 100, 10, 0, 1",
" 10, 1, 0, 10",
" 10, 3, 0, 10",
" 10, 10, 0, 10",
" 100, 1, 0, 10",
" 100, 3, 0, 10",
" 100, 10, 0, 10",
" 10, 1, 1, 10",
" 10, 3, 1, 10",
" 10, 10, 1, 10",
" 100, 1, 1, 10",
" 100, 3, 1, 10",
" 100, 10, 1, 10",
" 10, 1, 2, 10",
" 10, 3, 2, 10",
" 10, 10, 2, 10",
" 100, 1, 2, 10",
" 100, 3, 2, 10",
" 100, 10, 2, 10",
" 10, 1, 0, 50",
" 10, 3, 0, 50",
" 10, 10, 0, 50",
" 100, 1, 0, 50",
" 100, 3, 0, 50",
" 100, 10, 0, 50",
" 10, 1, 1, 50",
" 10, 3, 1, 50",
" 10, 10, 1, 50",
" 100, 1, 1, 50",
" 100, 3, 1, 50",
" 100, 10, 1, 50",
" 10, 1, 2, 50",
" 10, 3, 2, 50",
" 10, 10, 2, 50",
" 100, 1, 2, 50",
" 100, 3, 2, 50",
" 100, 10, 2, 50"
})
public String indicesShardsReplicasNodes = "10,1,0,1";
public int numTags = 2;
private AllocationService strategy;
private ClusterState initialClusterState;
@Setup
public void setUp() throws Exception {
final String[] params = indicesShardsReplicasNodes.split(",");
int numIndices = toInt(params[0]);
int numShards = toInt(params[1]);
int numReplicas = toInt(params[2]);
int numNodes = toInt(params[3]);
strategy = Allocators.createAllocationService(Settings.builder()
.put("cluster.routing.allocation.awareness.attributes", "tag")
.build());
MetaData.Builder mb = MetaData.builder();
for (int i = 1; i <= numIndices; i++) {
mb.put(IndexMetaData.builder("test_" + i)
.settings(Settings.builder().put("index.version.created", Version.CURRENT))
.numberOfShards(numShards)
.numberOfReplicas(numReplicas)
);
}
MetaData metaData = mb.build();
RoutingTable.Builder rb = RoutingTable.builder();
for (int i = 1; i <= numIndices; i++) {
rb.addAsNew(metaData.index("test_" + i));
}
RoutingTable routingTable = rb.build();
DiscoveryNodes.Builder nb = DiscoveryNodes.builder();
for (int i = 1; i <= numNodes; i++) {
nb.put(Allocators.newNode("node" + i, Collections.singletonMap("tag", "tag_" + (i % numTags))));
}
initialClusterState = ClusterState.builder(ClusterName.CLUSTER_NAME_SETTING.getDefault(Settings.EMPTY))
.metaData(metaData).routingTable(routingTable).nodes
(nb).build();
}
private int toInt(String v) {
return Integer.valueOf(v.trim());
}
@Benchmark
public ClusterState measureAllocation() {
ClusterState clusterState = initialClusterState;
while (clusterState.getRoutingNodes().hasUnassignedShards()) {
RoutingAllocation.Result result = strategy.applyStartedShards(clusterState, clusterState.getRoutingNodes()
.shardsWithState(ShardRoutingState.INITIALIZING));
clusterState = ClusterState.builder(clusterState).routingResult(result).build();
result = strategy.reroute(clusterState, "reroute");
clusterState = ClusterState.builder(clusterState).routingResult(result).build();
}
return clusterState;
}
}
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