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From sboi...@apache.org
Subject [15/47] ignite git commit: IGNITE-3912: Hadoop: Implemented new class loading architecture for embedded execution mode.
Date Mon, 26 Sep 2016 11:24:56 GMT
http://git-wip-us.apache.org/repos/asf/ignite/blob/8032fc2c/modules/hadoop/src/test/java/org/apache/ignite/internal/processors/hadoop/impl/HadoopWeightedMapReducePlannerTest.java
----------------------------------------------------------------------
diff --git a/modules/hadoop/src/test/java/org/apache/ignite/internal/processors/hadoop/impl/HadoopWeightedMapReducePlannerTest.java
b/modules/hadoop/src/test/java/org/apache/ignite/internal/processors/hadoop/impl/HadoopWeightedMapReducePlannerTest.java
new file mode 100644
index 0000000..430c675
--- /dev/null
+++ b/modules/hadoop/src/test/java/org/apache/ignite/internal/processors/hadoop/impl/HadoopWeightedMapReducePlannerTest.java
@@ -0,0 +1,602 @@
+/*
+ * 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.ignite.internal.processors.hadoop.impl;
+
+import org.apache.ignite.cluster.ClusterMetrics;
+import org.apache.ignite.cluster.ClusterNode;
+import org.apache.ignite.hadoop.mapreduce.IgniteHadoopWeightedMapReducePlanner;
+import org.apache.ignite.igfs.IgfsBlockLocation;
+import org.apache.ignite.igfs.IgfsPath;
+import org.apache.ignite.internal.IgniteNodeAttributes;
+import org.apache.ignite.internal.processors.hadoop.HadoopFileBlock;
+import org.apache.ignite.internal.processors.hadoop.HadoopInputSplit;
+import org.apache.ignite.internal.processors.hadoop.HadoopMapReducePlan;
+import org.apache.ignite.internal.processors.hadoop.planner.HadoopAbstractMapReducePlanner;
+import org.apache.ignite.internal.processors.igfs.IgfsIgniteMock;
+import org.apache.ignite.internal.processors.igfs.IgfsMock;
+import org.apache.ignite.internal.util.typedef.F;
+import org.apache.ignite.lang.IgniteProductVersion;
+import org.apache.ignite.testframework.GridTestUtils;
+import org.apache.ignite.testframework.junits.common.GridCommonAbstractTest;
+import org.jetbrains.annotations.Nullable;
+
+import java.net.URI;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.TreeMap;
+import java.util.UUID;
+
+/**
+ * Tests for weighted map-reduce planned.
+ */
+public class HadoopWeightedMapReducePlannerTest extends GridCommonAbstractTest {
+    /** ID 1. */
+    private static final UUID ID_1 = new UUID(0, 1);
+
+    /** ID 2. */
+    private static final UUID ID_2 = new UUID(0, 2);
+
+    /** ID 3. */
+    private static final UUID ID_3 = new UUID(0, 3);
+
+    /** MAC 1. */
+    private static final String MAC_1 = "mac1";
+
+    /** MAC 2. */
+    private static final String MAC_2 = "mac2";
+
+    /** MAC 3. */
+    private static final String MAC_3 = "mac3";
+
+    /** Host 1. */
+    private static final String HOST_1 = "host1";
+
+    /** Host 2. */
+    private static final String HOST_2 = "host2";
+
+    /** Host 3. */
+    private static final String HOST_3 = "host3";
+
+    /** Host 4. */
+    private static final String HOST_4 = "host4";
+
+    /** Host 5. */
+    private static final String HOST_5 = "host5";
+
+    /** Standard node 1. */
+    private static final MockNode NODE_1 = new MockNode(ID_1, MAC_1, HOST_1);
+
+    /** Standard node 2. */
+    private static final MockNode NODE_2 = new MockNode(ID_2, MAC_2, HOST_2);
+
+    /** Standard node 3. */
+    private static final MockNode NODE_3 = new MockNode(ID_3, MAC_3, HOST_3);
+
+    /** Standard nodes. */
+    private static final Collection<ClusterNode> NODES;
+
+    /**
+     * Static initializer.
+     */
+    static {
+        NODES = new ArrayList<>();
+
+        NODES.add(NODE_1);
+        NODES.add(NODE_2);
+        NODES.add(NODE_3);
+    }
+
+    /**
+     * Test one IGFS split being assigned to affinity node.
+     *
+     * @throws Exception If failed.
+     */
+    public void testOneIgfsSplitAffinity() throws Exception {
+        IgfsMock igfs = LocationsBuilder.create().add(0, NODE_1).add(50, NODE_2).add(100,
NODE_3).buildIgfs();
+
+        List<HadoopInputSplit> splits = new ArrayList<>();
+
+        splits.add(new HadoopFileBlock(new String[] { HOST_1 }, URI.create("igfs://igfs@/file"),
0, 50));
+
+        final int expReducers = 4;
+
+        HadoopPlannerMockJob job = new HadoopPlannerMockJob(splits, expReducers);
+
+        IgniteHadoopWeightedMapReducePlanner planner = createPlanner(igfs);
+
+        HadoopMapReducePlan plan = planner.preparePlan(job, NODES, null);
+
+        assert plan.mappers() == 1;
+        assert plan.mapperNodeIds().size() == 1;
+        assert plan.mapperNodeIds().contains(ID_1);
+
+        checkPlanMappers(plan, splits, NODES, false/*only 1 split*/);
+        checkPlanReducers(plan, NODES, expReducers, false/* because of threshold behavior.*/);
+    }
+
+    /**
+     * Test one HDFS splits.
+     *
+     * @throws Exception If failed.
+     */
+    public void testHdfsSplitsAffinity() throws Exception {
+        IgfsMock igfs = LocationsBuilder.create().add(0, NODE_1).add(50, NODE_2).add(100,
NODE_3).buildIgfs();
+
+        final List<HadoopInputSplit> splits = new ArrayList<>();
+
+        splits.add(new HadoopFileBlock(new String[] { HOST_1 }, URI.create("hfds://" + HOST_1
+ "/x"), 0, 50));
+        splits.add(new HadoopFileBlock(new String[] { HOST_2 }, URI.create("hfds://" + HOST_2
+ "/x"), 50, 100));
+        splits.add(new HadoopFileBlock(new String[] { HOST_3 }, URI.create("hfds://" + HOST_3
+ "/x"), 100, 37));
+
+        // The following splits belong to hosts that are out of Ignite topology at all.
+        // This means that these splits should be assigned to any least loaded modes:
+        splits.add(new HadoopFileBlock(new String[] { HOST_4 }, URI.create("hfds://" + HOST_4
+ "/x"), 138, 2));
+        splits.add(new HadoopFileBlock(new String[] { HOST_5 }, URI.create("hfds://" + HOST_5
+ "/x"), 140, 3));
+
+        final int expReducers = 7;
+
+        HadoopPlannerMockJob job = new HadoopPlannerMockJob(splits, expReducers);
+
+        IgniteHadoopWeightedMapReducePlanner planner = createPlanner(igfs);
+
+        final HadoopMapReducePlan plan = planner.preparePlan(job, NODES, null);
+
+        checkPlanMappers(plan, splits, NODES, true);
+
+        checkPlanReducers(plan, NODES, expReducers, true);
+    }
+
+    /**
+     * Test HDFS splits with Replication == 3.
+     *
+     * @throws Exception If failed.
+     */
+    public void testHdfsSplitsReplication() throws Exception {
+        IgfsMock igfs = LocationsBuilder.create().add(0, NODE_1).add(50, NODE_2).add(100,
NODE_3).buildIgfs();
+
+        final List<HadoopInputSplit> splits = new ArrayList<>();
+
+        splits.add(new HadoopFileBlock(new String[] { HOST_1, HOST_2, HOST_3 }, URI.create("hfds://"
+ HOST_1 + "/x"), 0, 50));
+        splits.add(new HadoopFileBlock(new String[] { HOST_2, HOST_3, HOST_4 }, URI.create("hfds://"
+ HOST_2 + "/x"), 50, 100));
+        splits.add(new HadoopFileBlock(new String[] { HOST_3, HOST_4, HOST_5 }, URI.create("hfds://"
+ HOST_3 + "/x"), 100, 37));
+        // The following splits belong to hosts that are out of Ignite topology at all.
+        // This means that these splits should be assigned to any least loaded modes:
+        splits.add(new HadoopFileBlock(new String[] { HOST_4, HOST_5, HOST_1 }, URI.create("hfds://"
+ HOST_4 + "/x"), 138, 2));
+        splits.add(new HadoopFileBlock(new String[] { HOST_5, HOST_1, HOST_2 }, URI.create("hfds://"
+ HOST_5 + "/x"), 140, 3));
+
+        final int expReducers = 8;
+
+        HadoopPlannerMockJob job = new HadoopPlannerMockJob(splits, expReducers);
+
+        IgniteHadoopWeightedMapReducePlanner planner = createPlanner(igfs);
+
+        final HadoopMapReducePlan plan = planner.preparePlan(job, NODES, null);
+
+        checkPlanMappers(plan, splits, NODES, true);
+
+        checkPlanReducers(plan, NODES, expReducers, true);
+    }
+
+    /**
+     * Get all IDs.
+     *
+     * @param nodes Nodes.
+     * @return IDs.
+     */
+    private static Set<UUID> allIds(Collection<ClusterNode> nodes) {
+        Set<UUID> allIds = new HashSet<>();
+
+        for (ClusterNode n : nodes)
+            allIds.add(n.id());
+
+        return allIds;
+    }
+
+    /**
+     * Check mappers for the plan.
+     *
+     * @param plan Plan.
+     * @param splits Splits.
+     * @param nodes Nodes.
+     * @param expectUniformity WHether uniformity is expected.
+     */
+    private static void checkPlanMappers(HadoopMapReducePlan plan, List<HadoopInputSplit>
splits,
+        Collection<ClusterNode> nodes, boolean expectUniformity) {
+        // Number of mappers should correspomd to the number of input splits:
+        assertEquals(splits.size(), plan.mappers());
+
+        if (expectUniformity) {
+            // mappers are assigned to all available nodes:
+            assertEquals(nodes.size(), plan.mapperNodeIds().size());
+
+
+            assertEquals(allIds(nodes), plan.mapperNodeIds());
+        }
+
+        // Check all splits are covered by mappers:
+        Set<HadoopInputSplit> set = new HashSet<>();
+
+        for (UUID id: plan.mapperNodeIds()) {
+            Collection<HadoopInputSplit> sp = plan.mappers(id);
+
+            assert sp != null;
+
+            for (HadoopInputSplit s: sp)
+                assertTrue(set.add(s));
+        }
+
+        // must be of the same size & contain same elements:
+        assertEquals(set, new HashSet<>(splits));
+    }
+
+    /**
+     * Check plan reducers.
+     *
+     * @param plan Plan.
+     * @param nodes Nodes.
+     * @param expReducers Expected reducers.
+     * @param expectUniformity Expected uniformity.
+     */
+    private static void checkPlanReducers(HadoopMapReducePlan plan,
+        Collection<ClusterNode> nodes, int expReducers, boolean expectUniformity) {
+
+        assertEquals(expReducers, plan.reducers());
+
+        if (expectUniformity)
+            assertEquals(allIds(nodes), plan.reducerNodeIds());
+
+        int sum = 0;
+        int lenSum = 0;
+
+        for (UUID uuid: plan.reducerNodeIds()) {
+            int[] rr = plan.reducers(uuid);
+
+            assert rr != null;
+
+            lenSum += rr.length;
+
+            for (int i: rr)
+                sum += i;
+        }
+
+        assertEquals(expReducers, lenSum);
+
+        // Numbers in the arrays must be consequtive integers stating from 0,
+        // check that simply calculating their total sum:
+        assertEquals((lenSum * (lenSum - 1) / 2), sum);
+    }
+
+    /**
+     * Create planner for IGFS.
+     *
+     * @param igfs IGFS.
+     * @return Planner.
+     */
+    private static IgniteHadoopWeightedMapReducePlanner createPlanner(IgfsMock igfs) {
+        IgniteHadoopWeightedMapReducePlanner planner = new IgniteHadoopWeightedMapReducePlanner();
+
+        IgfsIgniteMock ignite = new IgfsIgniteMock(null, igfs);
+
+        GridTestUtils.setFieldValue(planner, HadoopAbstractMapReducePlanner.class, "ignite",
ignite);
+
+        return planner;
+    }
+
+    /**
+     * Throw {@link UnsupportedOperationException}.
+     */
+    private static void throwUnsupported() {
+        throw new UnsupportedOperationException("Should not be called!");
+    }
+
+    /**
+     * Mocked node.
+     */
+    private static class MockNode implements ClusterNode {
+        /** ID. */
+        private final UUID id;
+
+        /** MAC addresses. */
+        private final String macs;
+
+        /** Addresses. */
+        private final List<String> addrs;
+
+        /**
+         * Constructor.
+         *
+         * @param id Node ID.
+         * @param macs MAC addresses.
+         * @param addrs Addresses.
+         */
+        public MockNode(UUID id, String macs, String... addrs) {
+            assert addrs != null;
+
+            this.id = id;
+            this.macs = macs;
+
+            this.addrs = Arrays.asList(addrs);
+        }
+
+        /** {@inheritDoc} */
+        @Override public UUID id() {
+            return id;
+        }
+
+        /** {@inheritDoc} */
+        @SuppressWarnings("unchecked")
+        @Nullable @Override public <T> T attribute(String name) {
+            if (F.eq(name, IgniteNodeAttributes.ATTR_MACS))
+                return (T)macs;
+
+            throwUnsupported();
+
+            return null;
+        }
+
+        /** {@inheritDoc} */
+        @Override public Collection<String> addresses() {
+            return addrs;
+        }
+
+        /** {@inheritDoc} */
+        @Override public Object consistentId() {
+            throwUnsupported();
+
+            return null;
+        }
+
+        /** {@inheritDoc} */
+        @Override public ClusterMetrics metrics() {
+            throwUnsupported();
+
+            return null;
+        }
+
+        /** {@inheritDoc} */
+        @Override public Map<String, Object> attributes() {
+            throwUnsupported();
+
+            return null;
+        }
+
+        /** {@inheritDoc} */
+        @Override public Collection<String> hostNames() {
+            throwUnsupported();
+
+            return null;
+        }
+
+        /** {@inheritDoc} */
+        @Override public long order() {
+            throwUnsupported();
+
+            return 0;
+        }
+
+        /** {@inheritDoc} */
+        @Override public IgniteProductVersion version() {
+            throwUnsupported();
+
+            return null;
+        }
+
+        /** {@inheritDoc} */
+        @Override public boolean isLocal() {
+            throwUnsupported();
+
+            return false;
+        }
+
+        /** {@inheritDoc} */
+        @Override public boolean isDaemon() {
+            throwUnsupported();
+
+            return false;
+        }
+
+        /** {@inheritDoc} */
+        @Override public boolean isClient() {
+            throwUnsupported();
+
+            return false;
+        }
+    }
+
+    /**
+     * Locations builder.
+     */
+    private static class LocationsBuilder {
+        /** Locations. */
+        private final TreeMap<Long, Collection<MockNode>> locs = new TreeMap<>();
+
+        /**
+         * Create new locations builder.
+         *
+         * @return Locations builder.
+         */
+        public static LocationsBuilder create() {
+            return new LocationsBuilder();
+        }
+
+        /**
+         * Add locations.
+         *
+         * @param start Start.
+         * @param nodes Nodes.
+         * @return This builder for chaining.
+         */
+        public LocationsBuilder add(long start, MockNode... nodes) {
+            locs.put(start, Arrays.asList(nodes));
+
+            return this;
+        }
+
+        /**
+         * Build locations.
+         *
+         * @return Locations.
+         */
+        public TreeMap<Long, Collection<MockNode>> build() {
+            return locs;
+        }
+
+        /**
+         * Build IGFS.
+         *
+         * @return IGFS.
+         */
+        public MockIgfs buildIgfs() {
+            return new MockIgfs(build());
+        }
+    }
+
+    /**
+     * Mocked IGFS.
+     */
+    private static class MockIgfs extends IgfsMock {
+        /** Block locations. */
+        private final TreeMap<Long, Collection<MockNode>> locs;
+
+        /**
+         * Constructor.
+         *
+         * @param locs Block locations.
+         */
+        public MockIgfs(TreeMap<Long, Collection<MockNode>> locs) {
+            super("igfs");
+
+            this.locs = locs;
+        }
+
+        /** {@inheritDoc} */
+        @Override public Collection<IgfsBlockLocation> affinity(IgfsPath path, long
start, long len) {
+            Collection<IgfsBlockLocation> res = new ArrayList<>();
+
+            long cur = start;
+            long remaining = len;
+
+            long prevLocStart = -1;
+            Collection<MockNode> prevLocNodes = null;
+
+            for (Map.Entry<Long, Collection<MockNode>> locEntry : locs.entrySet())
{
+                long locStart = locEntry.getKey();
+                Collection<MockNode> locNodes = locEntry.getValue();
+
+                if (prevLocNodes != null) {
+                    if (cur < locStart) {
+                        // Add part from previous block.
+                        long prevLen = locStart - prevLocStart;
+
+                        res.add(new IgfsBlockLocationMock(cur, prevLen, prevLocNodes));
+
+                        cur = locStart;
+                        remaining -= prevLen;
+                    }
+                }
+
+                prevLocStart = locStart;
+                prevLocNodes = locNodes;
+
+                if (remaining == 0)
+                    break;
+            }
+
+            // Add remainder.
+            if (remaining != 0)
+                res.add(new IgfsBlockLocationMock(cur, remaining, prevLocNodes));
+
+            return res;
+        }
+
+        /** {@inheritDoc} */
+        @Override public boolean exists(IgfsPath path) {
+            return true;
+        }
+
+        /** {@inheritDoc} */
+        @Override public boolean isProxy(URI path) {
+            return false;
+        }
+    }
+
+    /**
+     * Mocked block location.
+     */
+    private static class IgfsBlockLocationMock implements IgfsBlockLocation {
+        /** Start. */
+        private final long start;
+
+        /** Length. */
+        private final long len;
+
+        /** Node IDs. */
+        private final List<UUID> nodeIds;
+
+        /**
+         * Constructor.
+         *
+         * @param start Start.
+         * @param len Length.
+         * @param nodes Nodes.
+         */
+        public IgfsBlockLocationMock(long start, long len, Collection<MockNode> nodes)
{
+            this.start = start;
+            this.len = len;
+
+            this.nodeIds = new ArrayList<>(nodes.size());
+
+            for (MockNode node : nodes)
+                nodeIds.add(node.id);
+        }
+
+        /** {@inheritDoc} */
+        @Override public long start() {
+            return start;
+        }
+
+        /** {@inheritDoc} */
+        @Override public long length() {
+            return len;
+        }
+
+        /** {@inheritDoc} */
+        @Override public Collection<UUID> nodeIds() {
+            return nodeIds;
+        }
+
+        /** {@inheritDoc} */
+        @Override public Collection<String> names() {
+            throwUnsupported();
+
+            return null;
+        }
+
+        /** {@inheritDoc} */
+        @Override public Collection<String> hosts() {
+            throwUnsupported();
+
+            return null;
+        }
+    }
+}

http://git-wip-us.apache.org/repos/asf/ignite/blob/8032fc2c/modules/hadoop/src/test/java/org/apache/ignite/internal/processors/hadoop/impl/HadoopWeightedPlannerMapReduceTest.java
----------------------------------------------------------------------
diff --git a/modules/hadoop/src/test/java/org/apache/ignite/internal/processors/hadoop/impl/HadoopWeightedPlannerMapReduceTest.java
b/modules/hadoop/src/test/java/org/apache/ignite/internal/processors/hadoop/impl/HadoopWeightedPlannerMapReduceTest.java
new file mode 100644
index 0000000..13f00bd
--- /dev/null
+++ b/modules/hadoop/src/test/java/org/apache/ignite/internal/processors/hadoop/impl/HadoopWeightedPlannerMapReduceTest.java
@@ -0,0 +1,38 @@
+/*
+ * 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.ignite.internal.processors.hadoop.impl;
+
+import org.apache.ignite.configuration.HadoopConfiguration;
+import org.apache.ignite.hadoop.mapreduce.IgniteHadoopWeightedMapReducePlanner;
+
+/**
+ * Tests whole map-red execution Weighted planner.
+ */
+public class HadoopWeightedPlannerMapReduceTest extends HadoopMapReduceTest {
+    /** {@inheritDoc} */
+    @Override protected HadoopConfiguration createHadoopConfiguration() {
+        HadoopConfiguration hadoopCfg = new HadoopConfiguration();
+
+        // Use weighted planner with default settings:
+        IgniteHadoopWeightedMapReducePlanner planner = new IgniteHadoopWeightedMapReducePlanner();
+
+        hadoopCfg.setMapReducePlanner(planner);
+
+        return hadoopCfg;
+    }
+}


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