sohami commented on a change in pull request #1334: DRILL-6385: Support JPPD feature URL: https://github.com/apache/drill/pull/1334#discussion_r206243617
########## File path: exec/java-exec/src/main/java/org/apache/drill/exec/work/filter/RuntimeFilterManager.java ########## @@ -0,0 +1,666 @@ +/* + * 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 org.apache.drill.exec.work.filter; + +import org.apache.calcite.plan.volcano.RelSubset; +import org.apache.calcite.rel.RelNode; +import org.apache.calcite.rel.core.JoinInfo; +import org.apache.calcite.rel.core.JoinRelType; +import org.apache.calcite.rel.metadata.RelMetadataQuery; +import org.apache.calcite.rel.type.RelDataType; +import org.apache.calcite.rel.type.RelDataTypeField; +import org.apache.calcite.util.ImmutableBitSet; +import org.apache.commons.collections.CollectionUtils; +import org.apache.drill.exec.ExecConstants; +import org.apache.drill.exec.ops.AccountingDataTunnel; +import org.apache.drill.exec.ops.Consumer; +import org.apache.drill.exec.ops.QueryContext; +import org.apache.drill.exec.ops.SendingAccountor; +import org.apache.drill.exec.ops.StatusHandler; +import org.apache.drill.exec.physical.PhysicalPlan; + +import org.apache.drill.exec.physical.base.AbstractPhysicalVisitor; +import org.apache.drill.exec.physical.base.Exchange; +import org.apache.drill.exec.physical.base.GroupScan; +import org.apache.drill.exec.physical.base.PhysicalOperator; +import org.apache.drill.exec.physical.config.BroadcastExchange; +import org.apache.drill.exec.physical.config.HashJoinPOP; +import org.apache.drill.exec.planner.fragment.Fragment; +import org.apache.drill.exec.planner.fragment.Wrapper; +import org.apache.drill.exec.planner.physical.HashAggPrel; +import org.apache.drill.exec.planner.physical.HashJoinPrel; +import org.apache.drill.exec.planner.physical.Prel; +import org.apache.drill.exec.planner.physical.ScanPrel; +import org.apache.drill.exec.planner.physical.StreamAggPrel; +import org.apache.drill.exec.planner.physical.visitor.BasePrelVisitor; +import org.apache.drill.exec.proto.BitData; +import org.apache.drill.exec.proto.CoordinationProtos; +import org.apache.drill.exec.proto.GeneralRPCProtos; +import org.apache.drill.exec.proto.UserBitShared; +import org.apache.drill.exec.proto.helper.QueryIdHelper; +import org.apache.drill.exec.rpc.RpcException; +import org.apache.drill.exec.rpc.RpcOutcomeListener; +import org.apache.drill.exec.rpc.data.DataTunnel; +import org.apache.drill.exec.server.DrillbitContext; +import org.apache.drill.exec.util.Pointer; +import org.apache.drill.exec.work.QueryWorkUnit; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import java.util.ArrayList; +import java.util.HashMap; +import java.util.List; +import java.util.Map; +import java.util.Set; +import java.util.concurrent.ConcurrentHashMap; + +/** + * This class traverses the physical operator tree to find the HashJoin operator + * for which is JPPD (join predicate push down) is possible. The prerequisite to do JPPD + * is: + * 1. The join condition is equality + * 2. The physical join node is a HashJoin one + * 3. The probe side children of the HashJoin node should not contain a blocking operator like HashAgg + */ +public class RuntimeFilterManager { + + private Wrapper rootWrapper; + //HashJoin node's major fragment id to its corresponding probe side nodes's endpoints + private Map<Integer, List<CoordinationProtos.DrillbitEndpoint>> joinMjId2probdeScanEps = new HashMap<>(); + //HashJoin node's major fragment id to its corresponding probe side nodes's number + private Map<Integer, Integer> joinMjId2scanSize = new ConcurrentHashMap<>(); + //HashJoin node's major fragment id to its corresponding probe side scan node's belonging major fragment id + private Map<Integer, Integer> joinMjId2ScanMjId = new HashMap<>(); + + private RuntimeFilterWritable aggregatedRuntimeFilter; + + private DrillbitContext drillbitContext; + + private SendingAccountor sendingAccountor = new SendingAccountor(); + + private String lineSeparator; + + private static final Logger logger = LoggerFactory.getLogger(RuntimeFilterManager.class); + + /** + * This class maintains context for the runtime join push down's filter management. It + * does a traversal of the physical operators by leveraging the root wrapper which indirectly + * holds the global PhysicalOperator tree and contains the minor fragment endpoints. + * @param workUnit + * @param drillbitContext + */ + public RuntimeFilterManager(QueryWorkUnit workUnit, DrillbitContext drillbitContext) { + this.rootWrapper = workUnit.getRootWrapper(); + this.drillbitContext = drillbitContext; + lineSeparator = java.security.AccessController.doPrivileged(new sun.security.action.GetPropertyAction("line.separator")); Review comment: Consider using `System.lineSeparator()` instead. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org With regards, Apache Git Services
