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/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch 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.elasticsearch.action.search;
import org.elasticsearch.Version;
import org.elasticsearch.action.ActionListener;
import org.elasticsearch.action.OriginalIndices;
import org.elasticsearch.action.support.IndicesOptions;
import org.elasticsearch.cluster.node.DiscoveryNode;
import org.elasticsearch.cluster.routing.GroupShardsIterator;
import org.elasticsearch.cluster.routing.RecoverySource;
import org.elasticsearch.cluster.routing.ShardRouting;
import org.elasticsearch.cluster.routing.UnassignedInfo;
import org.elasticsearch.common.Strings;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.index.Index;
import org.elasticsearch.index.shard.ShardId;
import org.elasticsearch.search.SearchPhaseResult;
import org.elasticsearch.search.internal.AliasFilter;
import org.elasticsearch.test.ESTestCase;
import org.elasticsearch.transport.Transport;
import org.elasticsearch.transport.TransportException;
import org.elasticsearch.transport.TransportRequest;
import org.elasticsearch.transport.TransportRequestOptions;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.concurrent.atomic.AtomicReference;
public class SearchAsyncActionTests extends ESTestCase {
public void testFanOutAndCollect() throws InterruptedException {
SearchRequest request = new SearchRequest();
CountDownLatch latch = new CountDownLatch(1);
AtomicReference<TestSearchResponse> response = new AtomicReference<>();
ActionListener<SearchResponse> responseListener = new ActionListener<SearchResponse>() {
@Override
public void onResponse(SearchResponse searchResponse) {
response.set((TestSearchResponse) searchResponse);
}
@Override
public void onFailure(Exception e) {
logger.warn("test failed", e);
fail(e.getMessage());
}
};
DiscoveryNode primaryNode = new DiscoveryNode("node_1", buildNewFakeTransportAddress(), Version.CURRENT);
DiscoveryNode replicaNode = new DiscoveryNode("node_2", buildNewFakeTransportAddress(), Version.CURRENT);
Map<DiscoveryNode, Set<Long>> nodeToContextMap = new HashMap<>();
AtomicInteger contextIdGenerator = new AtomicInteger(0);
GroupShardsIterator<SearchShardIterator> shardsIter = getShardsIter("idx",
new OriginalIndices(new String[]{"idx"}, IndicesOptions.strictExpandOpenAndForbidClosed()),
randomIntBetween(1, 10), randomBoolean(), primaryNode, replicaNode);
AtomicInteger numFreedContext = new AtomicInteger();
SearchTransportService transportService = new SearchTransportService(Settings.EMPTY, null) {
@Override
public void sendFreeContext(Transport.Connection connection, long contextId, OriginalIndices originalIndices) {
numFreedContext.incrementAndGet();
assertTrue(nodeToContextMap.containsKey(connection.getNode()));
assertTrue(nodeToContextMap.get(connection.getNode()).remove(contextId));
}
};
Map<String, Transport.Connection> lookup = new HashMap<>();
lookup.put(primaryNode.getId(), new MockConnection(primaryNode));
lookup.put(replicaNode.getId(), new MockConnection(replicaNode));
Map<String, AliasFilter> aliasFilters = Collections.singletonMap("_na_", new AliasFilter(null, Strings.EMPTY_ARRAY));
AbstractSearchAsyncAction asyncAction =
new AbstractSearchAsyncAction<TestSearchPhaseResult>(
"test",
logger,
transportService,
(cluster, node) -> {
assert cluster == null : "cluster was not null: " + cluster;
return lookup.get(node); },
aliasFilters,
Collections.emptyMap(),
null,
request,
responseListener,
shardsIter,
new TransportSearchAction.SearchTimeProvider(0, 0, () -> 0),
0,
null,
new InitialSearchPhase.SearchPhaseResults<>(shardsIter.size())) {
TestSearchResponse response = new TestSearchResponse();
@Override
protected void executePhaseOnShard(SearchShardIterator shardIt, ShardRouting shard, SearchActionListener<TestSearchPhaseResult>
listener) {
assertTrue("shard: " + shard.shardId() + " has been queried twice", response.queried.add(shard.shardId()));
Transport.Connection connection = getConnection(null, shard.currentNodeId());
TestSearchPhaseResult testSearchPhaseResult = new TestSearchPhaseResult(contextIdGenerator.incrementAndGet(),
connection.getNode());
Set<Long> ids = nodeToContextMap.computeIfAbsent(connection.getNode(), (n) -> new HashSet<>());
ids.add(testSearchPhaseResult.getRequestId());
if (randomBoolean()) {
listener.onResponse(testSearchPhaseResult);
} else {
new Thread(() -> listener.onResponse(testSearchPhaseResult)).start();
}
}
@Override
protected SearchPhase getNextPhase(SearchPhaseResults<TestSearchPhaseResult> results, SearchPhaseContext context) {
return new SearchPhase("test") {
@Override
public void run() throws IOException {
for (int i = 0; i < results.getNumShards(); i++) {
TestSearchPhaseResult result = results.results.get(i);
assertEquals(result.node.getId(), result.getSearchShardTarget().getNodeId());
sendReleaseSearchContext(result.getRequestId(), new MockConnection(result.node), OriginalIndices.NONE);
}
responseListener.onResponse(response);
latch.countDown();
}
};
}
};
asyncAction.start();
latch.await();
assertNotNull(response.get());
assertFalse(nodeToContextMap.isEmpty());
assertTrue(nodeToContextMap.toString(), nodeToContextMap.containsKey(primaryNode) || nodeToContextMap.containsKey(replicaNode));
assertEquals(shardsIter.size(), numFreedContext.get());
if (nodeToContextMap.containsKey(primaryNode)) {
assertTrue(nodeToContextMap.get(primaryNode).toString(), nodeToContextMap.get(primaryNode).isEmpty());
} else {
assertTrue(nodeToContextMap.get(replicaNode).toString(), nodeToContextMap.get(replicaNode).isEmpty());
}
}
private static GroupShardsIterator<SearchShardIterator> getShardsIter(String index, OriginalIndices originalIndices, int numShards,
boolean doReplicas, DiscoveryNode primaryNode, DiscoveryNode replicaNode) {
ArrayList<SearchShardIterator> list = new ArrayList<>();
for (int i = 0; i < numShards; i++) {
ArrayList<ShardRouting> started = new ArrayList<>();
ArrayList<ShardRouting> initializing = new ArrayList<>();
ArrayList<ShardRouting> unassigned = new ArrayList<>();
ShardRouting routing = ShardRouting.newUnassigned(new ShardId(new Index(index, "_na_"), i), true,
RecoverySource.StoreRecoverySource.EMPTY_STORE_INSTANCE, new UnassignedInfo(UnassignedInfo.Reason.INDEX_CREATED, "foobar"));
routing = routing.initialize(primaryNode.getId(), i + "p", 0);
routing.started();
started.add(routing);
if (doReplicas) {
routing = ShardRouting.newUnassigned(new ShardId(new Index(index, "_na_"), i), false,
RecoverySource.PeerRecoverySource.INSTANCE, new UnassignedInfo(UnassignedInfo.Reason.INDEX_CREATED, "foobar"));
if (replicaNode != null) {
routing = routing.initialize(replicaNode.getId(), i + "r", 0);
if (randomBoolean()) {
routing.started();
started.add(routing);
} else {
initializing.add(routing);
}
} else {
unassigned.add(routing); // unused yet
}
}
Collections.shuffle(started, random());
started.addAll(initializing);
list.add(new SearchShardIterator(null, new ShardId(new Index(index, "_na_"), i), started, originalIndices));
}
return new GroupShardsIterator<>(list);
}
public static class TestSearchResponse extends SearchResponse {
public final Set<ShardId> queried = new HashSet<>();
}
public static class TestSearchPhaseResult extends SearchPhaseResult {
final DiscoveryNode node;
public TestSearchPhaseResult(long id, DiscoveryNode node) {
this.requestId = id;
this.node = node;
}
@Override
public void readFrom(StreamInput in) throws IOException {
}
@Override
public void writeTo(StreamOutput out) throws IOException {
}
}
public static final class MockConnection implements Transport.Connection {
private final DiscoveryNode node;
public MockConnection(DiscoveryNode node) {
this.node = node;
}
@Override
public DiscoveryNode getNode() {
return node;
}
@Override
public void sendRequest(long requestId, String action, TransportRequest request, TransportRequestOptions options)
throws IOException, TransportException {
throw new UnsupportedOperationException();
}
@Override
public void close() throws IOException {
throw new UnsupportedOperationException();
}
}
}
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