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* Licensed to Elasticsearch under one or more contributor
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* 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
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package org.elasticsearch.index.shard;
import org.elasticsearch.cluster.metadata.IndexMetaData;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.test.ESTestCase;
import org.junit.Test;
/** Unit test(s) for IndexShardModule */
public class IndexShardModuleTests extends ESTestCase {
@Test
public void testDetermineShadowEngineShouldBeUsed() {
ShardId shardId = new ShardId("myindex", 0);
Settings regularSettings = Settings.builder()
.put(IndexMetaData.SETTING_NUMBER_OF_SHARDS, 2)
.put(IndexMetaData.SETTING_NUMBER_OF_REPLICAS, 1)
.build();
Settings shadowSettings = Settings.builder()
.put(IndexMetaData.SETTING_NUMBER_OF_SHARDS, 2)
.put(IndexMetaData.SETTING_NUMBER_OF_REPLICAS, 1)
.put(IndexMetaData.SETTING_SHADOW_REPLICAS, true)
.build();
IndexShardModule ism1 = new IndexShardModule(shardId, true, regularSettings);
IndexShardModule ism2 = new IndexShardModule(shardId, false, regularSettings);
IndexShardModule ism3 = new IndexShardModule(shardId, true, shadowSettings);
IndexShardModule ism4 = new IndexShardModule(shardId, false, shadowSettings);
assertFalse("no shadow replicas for normal settings", ism1.useShadowEngine());
assertFalse("no shadow replicas for normal settings", ism2.useShadowEngine());
assertFalse("no shadow replicas for primary shard with shadow settings", ism3.useShadowEngine());
assertTrue("shadow replicas for replica shards with shadow settings", ism4.useShadowEngine());
}
}