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https://issues.apache.org/jira/browse/APEXCORE-10?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15212785#comment-15212785
]
ASF GitHub Bot commented on APEXCORE-10:
----------------------------------------
Github user tweise commented on a diff in the pull request:
https://github.com/apache/incubator-apex-core/pull/250#discussion_r57509050
--- Diff: engine/src/test/java/com/datatorrent/stram/AffinityRulesTest.java
---
@@ -0,0 +1,177 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License 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.
+ */
+package com.datatorrent.stram;
+
+import java.io.File;
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+import org.junit.Assert;
+import org.junit.Test;
+import org.apache.hadoop.yarn.api.records.NodeReport;
+import org.apache.hadoop.yarn.api.records.NodeState;
+import org.apache.hadoop.yarn.server.utils.BuilderUtils;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.google.common.collect.Lists;
+import com.google.common.collect.Maps;
+
+import com.datatorrent.api.AffinityRule;
+import com.datatorrent.api.AffinityRule.OperatorPair;
+import com.datatorrent.api.AffinityRule.Type;
+import com.datatorrent.api.AffinityRulesSet;
+import com.datatorrent.api.Context.DAGContext;
+import com.datatorrent.api.Context.OperatorContext;
+import com.datatorrent.api.DAG.Locality;
+import com.datatorrent.common.partitioner.StatelessPartitioner;
+import com.datatorrent.stram.StreamingContainerAgent.ContainerStartRequest;
+import com.datatorrent.stram.engine.GenericTestOperator;
+import com.datatorrent.stram.engine.TestGeneratorInputOperator;
+import com.datatorrent.stram.plan.logical.LogicalPlan;
+import com.datatorrent.stram.plan.physical.PTContainer;
+import com.datatorrent.stram.plan.physical.PTOperator;
+import com.datatorrent.stram.support.StramTestSupport.MemoryStorageAgent;
+
+public class AffinityRulesTest
+{
+ private static final Logger LOG =
LoggerFactory.getLogger(AffinityRulesTest.class);
+
+ @Test
+ public void testOperatorPartitionsAntiAffinity()
+ {
+ LogicalPlan dag = new LogicalPlan();
+ TestGeneratorInputOperator o1 = dag.addOperator("O1", new
TestGeneratorInputOperator());
+ GenericTestOperator o2 = dag.addOperator("O2", new
GenericTestOperator());
+ GenericTestOperator o3 = dag.addOperator("O3", new
GenericTestOperator());
+ dag.addStream("stream1", o1.outport, o2.inport1);
+ dag.addStream("stream2", o2.outport1, o3.inport1);
+
+ dag.setAttribute(o2, OperatorContext.PARTITIONER, new
StatelessPartitioner<GenericTestOperator>(5));
+
+ AffinityRulesSet ruleSet = new AffinityRulesSet();
+ // Valid case:
+ List<AffinityRule> rules = new ArrayList<>();
+ ruleSet.setAffinityRules(rules);
+ AffinityRule rule1 = new AffinityRule(Type.ANTI_AFFINITY, new
OperatorPair("O2", "O2"), Locality.NODE_LOCAL, false);
+ rules.add(rule1);
+ dag.setAttribute(DAGContext.AFFINITY_RULES_SET, ruleSet);
+ dag.validate();
+
dag.getAttributes().put(com.datatorrent.api.Context.DAGContext.APPLICATION_PATH,
new File("target", HostLocalTest.class.getName()).getAbsolutePath());
--- End diff --
see StramTestSupport.TestMeta
> Enable non-affinity of operators per node (not containers)
> ----------------------------------------------------------
>
> Key: APEXCORE-10
> URL: https://issues.apache.org/jira/browse/APEXCORE-10
> Project: Apache Apex Core
> Issue Type: Task
> Reporter: Amol Kekre
> Assignee: Isha Arkatkar
> Labels: roadmap
>
> The issue happens on cloud which provides virtual cores with software like
> Xen underneath. In effect if CPU intensive operators land up on same node we
> have a resource bottleneck,
> Need to create an attribute that does the following
> - Operators A & B should not be on same node
> - Stram should use this attribute to try to get containers on different node
> It is understood that the user is making an explicit choice to use NIC
> instead of stream local optimization
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