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@s1monw
Created April 11, 2014 19:30
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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.index.engine.internal;
import com.carrotsearch.randomizedtesting.annotations.Nightly;
import com.carrotsearch.randomizedtesting.annotations.Seed;
import com.google.common.base.Predicate;
import org.apache.lucene.index.LogByteSizeMergePolicy;
import org.apache.lucene.util.LuceneTestCase;
import org.elasticsearch.action.admin.indices.stats.IndicesStatsResponse;
import org.elasticsearch.action.bulk.BulkRequestBuilder;
import org.elasticsearch.action.bulk.BulkResponse;
import org.elasticsearch.action.index.IndexRequestBuilder;
import org.elasticsearch.client.Requests;
import org.elasticsearch.cluster.metadata.IndexMetaData;
import org.elasticsearch.common.settings.ImmutableSettings;
import org.elasticsearch.index.merge.policy.LogDocMergePolicyProvider;
import org.elasticsearch.test.ElasticsearchIntegrationTest;
import org.hamcrest.Matchers;
import org.junit.Test;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.ExecutionException;
import static org.elasticsearch.common.xcontent.XContentFactory.jsonBuilder;
import static org.elasticsearch.test.hamcrest.ElasticsearchAssertions.assertAcked;
import static org.elasticsearch.test.hamcrest.ElasticsearchAssertions.assertNoFailures;
/**
*/
@ElasticsearchIntegrationTest.ClusterScope(numNodes = 1, scope = ElasticsearchIntegrationTest.Scope.SUITE)
public class InternalEngineMergeTests extends ElasticsearchIntegrationTest {
@Test
@LuceneTestCase.Slow
// @Nightly
@Seed("0")
public void testMergesHappening() throws InterruptedException, IOException, ExecutionException {
final int numOfShards = 5;
// some settings to keep num segments low
assertAcked(prepareCreate("test").setSettings(ImmutableSettings.builder()
.put(IndexMetaData.SETTING_NUMBER_OF_SHARDS, numOfShards)
.put(LogDocMergePolicyProvider.MIN_MERGE_DOCS_KEY, 10)
.put(LogDocMergePolicyProvider.MERGE_FACTORY_KEY, 5)
.put(LogByteSizeMergePolicy.DEFAULT_MIN_MERGE_MB, 0.5).build()));
long id = 0;
final int rounds = scaledRandomIntBetween(100, 300);
logger.info("Starting rounds [{}] ", rounds);
for (int i = 0; i < rounds; ++i) {
List<IndexRequestBuilder> builders = new ArrayList<>();
final int numDocs = scaledRandomIntBetween(500, 1000);
BulkRequestBuilder request = client().prepareBulk();
for (int j = 0; j < numDocs; ++j) {
request.add(Requests.indexRequest("test").type("type1").id(Long.toString(id++)).source(jsonBuilder().startObject().field("l", randomLong()).endObject()));
}
BulkResponse response = request.execute().actionGet();
refresh();
assertNoFailures(response);
IndicesStatsResponse stats = client().admin().indices().prepareStats("test").setSegments(true).setMerge(true).get();
logger.info("index round [{}] - segments {}, total merges {}, current merge {}", i, stats.getPrimaries().getSegments().getCount(), stats.getPrimaries().getMerge().getTotal(), stats.getPrimaries().getMerge().getCurrent());
}
awaitBusy(new Predicate<Object>() {
@Override
public boolean apply(Object input) {
IndicesStatsResponse stats = client().admin().indices().prepareStats().setSegments(true).setMerge(true).get();
logger.info("numshards {}, segments {}, total merges {}, current merge {}", numOfShards, stats.getPrimaries().getSegments().getCount(), stats.getPrimaries().getMerge().getTotal(), stats.getPrimaries().getMerge().getCurrent());
long current = stats.getPrimaries().getMerge().getCurrent();
long count = stats.getPrimaries().getSegments().getCount();
return count < 50 && current == 0;
}
});
IndicesStatsResponse stats = client().admin().indices().prepareStats().setSegments(true).setMerge(true).get();
logger.info("numshards {}, segments {}, total merges {}, current merge {}", numOfShards, stats.getPrimaries().getSegments().getCount(), stats.getPrimaries().getMerge().getTotal(), stats.getPrimaries().getMerge().getCurrent());
long count = stats.getPrimaries().getSegments().getCount();
assertThat(count, Matchers.lessThanOrEqualTo(50l));
}
}
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