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JVM decider for old gen auto tuning (#326)
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...istro/elasticsearch/performanceanalyzer/decisionmaker/deciders/jvm/HeapHealthDecider.java
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| /* | ||
| * Copyright 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved. | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"). | ||
| * You may not use this file except in compliance with the License. | ||
| * A copy of the License is located at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * or in the "license" file accompanying this file. This file is distributed | ||
| * on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either | ||
| * express or implied. See the License for the specific language governing | ||
| * permissions and limitations under the License. | ||
| */ | ||
|
|
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| package com.amazon.opendistro.elasticsearch.performanceanalyzer.decisionmaker.deciders.jvm; | ||
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| import com.amazon.opendistro.elasticsearch.performanceanalyzer.decisionmaker.actions.Action; | ||
| import com.amazon.opendistro.elasticsearch.performanceanalyzer.decisionmaker.deciders.Decider; | ||
| import com.amazon.opendistro.elasticsearch.performanceanalyzer.decisionmaker.deciders.Decision; | ||
| import com.amazon.opendistro.elasticsearch.performanceanalyzer.decisionmaker.deciders.jvm.old_gen.OldGenDecisionPolicy; | ||
| import com.amazon.opendistro.elasticsearch.performanceanalyzer.rca.framework.api.flow_units.ResourceFlowUnit; | ||
| import com.amazon.opendistro.elasticsearch.performanceanalyzer.rca.framework.api.summaries.HotClusterSummary; | ||
| import com.amazon.opendistro.elasticsearch.performanceanalyzer.rca.framework.api.summaries.HotNodeSummary; | ||
| import com.amazon.opendistro.elasticsearch.performanceanalyzer.rca.framework.api.summaries.HotResourceSummary; | ||
| import com.amazon.opendistro.elasticsearch.performanceanalyzer.rca.framework.api.summaries.ResourceUtil; | ||
| import com.amazon.opendistro.elasticsearch.performanceanalyzer.rca.store.rca.HighHeapUsageClusterRca; | ||
| import com.amazon.opendistro.elasticsearch.performanceanalyzer.rca.store.rca.cluster.NodeKey; | ||
| import java.util.List; | ||
|
|
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| /** | ||
| * decider to bring down heap usage in young gen / old gen | ||
| */ | ||
| public class HeapHealthDecider extends Decider { | ||
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| public static final String NAME = "HeapHealthDecider"; | ||
| private final HighHeapUsageClusterRca highHeapUsageClusterRca; | ||
| private final OldGenDecisionPolicy oldGenDecisionPolicy; | ||
| private int counter = 0; | ||
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| public HeapHealthDecider(int decisionFrequency, final HighHeapUsageClusterRca highHeapUsageClusterRca) { | ||
| //TODO : refactor parent class to remove evalIntervalSeconds completely | ||
| super(5, decisionFrequency); | ||
| this.highHeapUsageClusterRca = highHeapUsageClusterRca; | ||
| oldGenDecisionPolicy = new OldGenDecisionPolicy(this.getAppContext(), rcaConf); | ||
| } | ||
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| @Override | ||
| public String name() { | ||
| return NAME; | ||
| } | ||
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| @Override | ||
| public Decision operate() { | ||
| Decision decision = new Decision(System.currentTimeMillis(), NAME); | ||
| counter += 1; | ||
| if (counter < decisionFrequency) { | ||
| return decision; | ||
| } | ||
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| counter = 0; | ||
| if (highHeapUsageClusterRca.getFlowUnits().isEmpty()) { | ||
| return decision; | ||
| } | ||
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| ResourceFlowUnit<HotClusterSummary> flowUnit = highHeapUsageClusterRca.getFlowUnits().get(0); | ||
| if (!flowUnit.hasResourceSummary()) { | ||
| return decision; | ||
| } | ||
| HotClusterSummary clusterSummary = flowUnit.getSummary(); | ||
| for (HotNodeSummary nodeSummary : clusterSummary.getHotNodeSummaryList()) { | ||
| NodeKey esNode = new NodeKey(nodeSummary.getNodeID(), nodeSummary.getHostAddress()); | ||
| for (HotResourceSummary resource : nodeSummary.getHotResourceSummaryList()) { | ||
| if (resource.getResource().equals(ResourceUtil.OLD_GEN_HEAP_USAGE)) { | ||
| List<Action> actions = oldGenDecisionPolicy.actions(esNode, resource.getValue()); | ||
| actions.forEach(decision::addAction); | ||
| } | ||
| //TODO : Add policy for young gen | ||
| } | ||
| } | ||
| return decision; | ||
| } | ||
| } |
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