dbw9580 commented on a change in pull request #2084: URL: https://github.com/apache/drill/pull/2084#discussion_r470673442
########## File path: contrib/storage-ipfs/src/main/java/org/apache/drill/exec/store/ipfs/IPFSGroupScan.java ########## @@ -0,0 +1,463 @@ +/* + * 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.store.ipfs; + + +import com.fasterxml.jackson.annotation.JacksonInject; +import com.fasterxml.jackson.annotation.JsonCreator; +import com.fasterxml.jackson.annotation.JsonIgnore; +import com.fasterxml.jackson.annotation.JsonProperty; +import com.fasterxml.jackson.annotation.JsonTypeName; +import io.ipfs.api.MerkleNode; +import io.ipfs.multihash.Multihash; +import org.apache.drill.common.PlanStringBuilder; +import org.apache.drill.common.expression.SchemaPath; +import org.apache.drill.common.util.DrillVersionInfo; +import org.apache.drill.exec.coord.ClusterCoordinator; +import org.apache.drill.exec.physical.EndpointAffinity; +import org.apache.drill.exec.physical.base.AbstractGroupScan; +import org.apache.drill.exec.physical.base.PhysicalOperator; +import org.apache.drill.exec.physical.base.ScanStats; +import org.apache.drill.exec.proto.CoordinationProtos.DrillbitEndpoint; +import org.apache.drill.exec.store.StoragePluginRegistry; +import org.apache.drill.exec.store.schedule.AffinityCreator; +import org.apache.drill.exec.store.schedule.AssignmentCreator; +import org.apache.drill.exec.store.schedule.CompleteWork; +import org.apache.drill.exec.store.schedule.EndpointByteMap; +import org.apache.drill.exec.store.schedule.EndpointByteMapImpl; +import org.apache.drill.shaded.guava.com.google.common.base.Preconditions; +import org.apache.drill.shaded.guava.com.google.common.base.Stopwatch; +import org.apache.drill.shaded.guava.com.google.common.cache.LoadingCache; +import org.apache.drill.shaded.guava.com.google.common.collect.ArrayListMultimap; +import org.apache.drill.shaded.guava.com.google.common.collect.ImmutableList; +import org.apache.drill.shaded.guava.com.google.common.collect.ListMultimap; +import org.apache.drill.shaded.guava.com.google.common.collect.Lists; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import java.io.IOException; +import java.util.ArrayList; +import java.util.HashMap; +import java.util.LinkedHashMap; +import java.util.List; +import java.util.Map; +import java.util.Optional; +import java.util.Random; +import java.util.concurrent.ForkJoinPool; +import java.util.concurrent.RecursiveTask; +import java.util.concurrent.TimeUnit; +import java.util.stream.Collectors; + + +@JsonTypeName("ipfs-scan") +public class IPFSGroupScan extends AbstractGroupScan { + private static final Logger logger = LoggerFactory.getLogger(IPFSGroupScan.class); + private final IPFSContext ipfsContext; + private final IPFSScanSpec ipfsScanSpec; + private final IPFSStoragePluginConfig config; + private List<SchemaPath> columns; + + private static final long DEFAULT_NODE_SIZE = 1000L; + private static final int DEFAULT_USER_PORT = 31010; + private static final int DEFAULT_CONTROL_PORT = 31011; + private static final int DEFAULT_DATA_PORT = 31012; + private static final int DEFAULT_HTTP_PORT = 8047; + + private ListMultimap<Integer, IPFSWork> assignments; + private List<IPFSWork> ipfsWorkList = Lists.newArrayList(); + private Map<String, List<IPFSWork>> endpointWorksMap; + private List<EndpointAffinity> affinities; + + @JsonCreator + public IPFSGroupScan(@JsonProperty("IPFSScanSpec") IPFSScanSpec ipfsScanSpec, + @JsonProperty("IPFSStoragePluginConfig") IPFSStoragePluginConfig ipfsStoragePluginConfig, + @JsonProperty("columns") List<SchemaPath> columns, + @JacksonInject StoragePluginRegistry pluginRegistry) { + this( + pluginRegistry.resolve(ipfsStoragePluginConfig, IPFSStoragePlugin.class).getIPFSContext(), + ipfsScanSpec, + columns + ); + } + + public IPFSGroupScan(IPFSContext ipfsContext, + IPFSScanSpec ipfsScanSpec, + List<SchemaPath> columns) { + super((String) null); + this.ipfsContext = ipfsContext; + this.ipfsScanSpec = ipfsScanSpec; + this.config = ipfsContext.getStoragePluginConfig(); + logger.debug("GroupScan constructor called with columns {}", columns); + this.columns = columns == null || columns.size() == 0? ALL_COLUMNS : columns; + init(); + } + + private void init() { + IPFSHelper ipfsHelper = ipfsContext.getIPFSHelper(); + endpointWorksMap = new HashMap<>(); + + Multihash topHash = ipfsScanSpec.getTargetHash(ipfsHelper); + try { + Map<Multihash, String> leafAddrMap = getLeafAddrMappings(topHash); + logger.debug("Iterating on {} leaves...", leafAddrMap.size()); + ClusterCoordinator coordinator = ipfsContext.getStoragePlugin().getContext().getClusterCoordinator(); + for (Multihash leaf : leafAddrMap.keySet()) { + String peerHostname = leafAddrMap.get(leaf); + + Optional<DrillbitEndpoint> oep = coordinator.getAvailableEndpoints() + .stream() + .filter(a -> a.getAddress().equals(peerHostname)) + .findAny(); + DrillbitEndpoint ep; + if (oep.isPresent()) { + ep = oep.get(); + logger.debug("Using existing endpoint {}", ep.getAddress()); + } else { + logger.debug("created new endpoint on the fly {}", peerHostname); + //DRILL-7754: read ports & version info from IPFS instead of hard-coded + ep = DrillbitEndpoint.newBuilder() + .setAddress(peerHostname) + .setUserPort(DEFAULT_USER_PORT) + .setControlPort(DEFAULT_CONTROL_PORT) + .setDataPort(DEFAULT_DATA_PORT) + .setHttpPort(DEFAULT_HTTP_PORT) + .setVersion(DrillVersionInfo.getVersion()) + .setState(DrillbitEndpoint.State.ONLINE) + .build(); + //TODO how to safely remove endpoints that are no longer needed once the query is completed? Review comment: This is now DRILL-7777. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to 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
