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https://issues.apache.org/jira/browse/DRILL-7745?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17191070#comment-17191070
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ASF GitHub Bot commented on DRILL-7745:
---
dbw9580 commented on a change in pull request #2084:
URL: https://github.com/apache/drill/pull/2084#discussion_r483963623
##
File path:
contrib/storage-ipfs/src/main/java/org/apache/drill/exec/store/ipfs/IPFSGroupScan.java
##
@@ -0,0 +1,452 @@
+/*
+ * 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.cid.Cid;
+import io.ipfs.multihash.Multihash;
+import org.apache.drill.common.PlanStringBuilder;
+import org.apache.drill.common.exceptions.UserException;
+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.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 columns;
+
+ private static final long DEFAULT_NODE_SIZE = 1000L;
+ public static final int DEFAULT_USER_PORT = 31010;
+ public static final int DEFAULT_CONTROL_PORT = 31011;
+ public static final int DEFAULT_DATA_PORT = 31012;
+ public static final int DEFAULT_HTTP_PORT = 8047;
+
+ private ListMultimap assignments;
+ private List ipfsWorkList = Lists.newArrayList();
+ private ListMultimap endpointWorksMap;
+ private List affinities;
+
+ @JsonCreator
+ public IPFSGroupScan(@JsonProperty("IPFSScanSpec") IPFSScanSpec ipfsScanSpec,
+ @JsonProperty("IPFSStoragePluginConfig")
IPFSStoragePluginConfig ipfsStoragePluginConfig,
+ @JsonProperty("columns") List columns,
+ @JacksonInject StoragePluginRegistry pluginRegistry) {
+this(
+pluginRegistry.resolve(ipfsStoragePluginConfig,
IPFSStoragePlugin.class).getIPFSContext(),
+ipfsScanSpec,
+columns
+);
+ }
+
+ public IPFSGroupScan(IPFSContext ipfsContext,
+
