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* 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.gateway;
import org.elasticsearch.cluster.metadata.IndexMetaData;
import org.elasticsearch.cluster.routing.RoutingNodes;
import org.elasticsearch.cluster.routing.ShardRouting;
import org.elasticsearch.cluster.routing.ShardRoutingState;
import org.elasticsearch.cluster.routing.TestShardRouting;
import org.elasticsearch.cluster.routing.UnassignedInfo;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.index.Index;
import org.elasticsearch.test.ESTestCase;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import static org.mockito.Mockito.mock;
public class PriorityComparatorTests extends ESTestCase {
public void testPreferNewIndices() {
RoutingNodes.UnassignedShards shards = new RoutingNodes.UnassignedShards(mock(RoutingNodes.class));
List<ShardRouting> shardRoutings = Arrays.asList(
TestShardRouting.newShardRouting("oldest", 0, null, null,
randomBoolean(), ShardRoutingState.UNASSIGNED, new UnassignedInfo(randomFrom(UnassignedInfo.Reason.values()), "foobar")),
TestShardRouting.newShardRouting("newest", 0, null, null,
randomBoolean(), ShardRoutingState.UNASSIGNED, new UnassignedInfo(randomFrom(UnassignedInfo.Reason.values()), "foobar")));
Collections.shuffle(shardRoutings, random());
for (ShardRouting routing : shardRoutings) {
shards.add(routing);
}
shards.sort(new PriorityComparator() {
@Override
protected Settings getIndexSettings(Index index) {
if ("oldest".equals(index.getName())) {
return Settings.builder().put(IndexMetaData.SETTING_CREATION_DATE, 10)
.put(IndexMetaData.SETTING_PRIORITY, 1).build();
} else if ("newest".equals(index.getName())) {
return Settings.builder().put(IndexMetaData.SETTING_CREATION_DATE, 100)
.put(IndexMetaData.SETTING_PRIORITY, 1).build();
}
return Settings.EMPTY;
}
});
RoutingNodes.UnassignedShards.UnassignedIterator iterator = shards.iterator();
ShardRouting next = iterator.next();
assertEquals("newest", next.getIndexName());
next = iterator.next();
assertEquals("oldest", next.getIndexName());
assertFalse(iterator.hasNext());
}
public void testPreferPriorityIndices() {
RoutingNodes.UnassignedShards shards = new RoutingNodes.UnassignedShards(mock(RoutingNodes.class));
List<ShardRouting> shardRoutings = Arrays.asList(
TestShardRouting.newShardRouting("oldest", 0, null, null,
randomBoolean(), ShardRoutingState.UNASSIGNED, new UnassignedInfo(randomFrom(UnassignedInfo.Reason.values()), "foobar")),
TestShardRouting.newShardRouting("newest", 0, null, null,
randomBoolean(), ShardRoutingState.UNASSIGNED, new UnassignedInfo(randomFrom(UnassignedInfo.Reason.values()), "foobar")));
Collections.shuffle(shardRoutings, random());
for (ShardRouting routing : shardRoutings) {
shards.add(routing);
}
shards.sort(new PriorityComparator() {
@Override
protected Settings getIndexSettings(Index index) {
if ("oldest".equals(index.getName())) {
return Settings.builder().put(IndexMetaData.SETTING_CREATION_DATE, 10)
.put(IndexMetaData.SETTING_PRIORITY, 100).build();
} else if ("newest".equals(index.getName())) {
return Settings.builder().put(IndexMetaData.SETTING_CREATION_DATE, 100)
.put(IndexMetaData.SETTING_PRIORITY, 1).build();
}
return Settings.EMPTY;
}
});
RoutingNodes.UnassignedShards.UnassignedIterator iterator = shards.iterator();
ShardRouting next = iterator.next();
assertEquals("oldest", next.getIndexName());
next = iterator.next();
assertEquals("newest", next.getIndexName());
assertFalse(iterator.hasNext());
}
public void testPriorityComparatorSort() {
RoutingNodes.UnassignedShards shards = new RoutingNodes.UnassignedShards(mock(RoutingNodes.class));
int numIndices = randomIntBetween(3, 99);
IndexMeta[] indices = new IndexMeta[numIndices];
final Map<String, IndexMeta> map = new HashMap<>();
for (int i = 0; i < indices.length; i++) {
if (frequently()) {
indices[i] = new IndexMeta("idx_2015_04_" + String.format(Locale.ROOT, "%02d", i), randomIntBetween(1, 1000), randomIntBetween(1, 10000));
} else { // sometimes just use defaults
indices[i] = new IndexMeta("idx_2015_04_" + String.format(Locale.ROOT, "%02d", i));
}
map.put(indices[i].name, indices[i]);
}
int numShards = randomIntBetween(10, 100);
for (int i = 0; i < numShards; i++) {
IndexMeta indexMeta = randomFrom(indices);
shards.add(TestShardRouting.newShardRouting(indexMeta.name, randomIntBetween(1, 5), null, null,
randomBoolean(), ShardRoutingState.UNASSIGNED, new UnassignedInfo(randomFrom(UnassignedInfo.Reason.values()), "foobar")));
}
shards.sort(new PriorityComparator() {
@Override
protected Settings getIndexSettings(Index index) {
IndexMeta indexMeta = map.get(index.getName());
return indexMeta.settings;
}
});
ShardRouting previous = null;
for (ShardRouting routing : shards) {
if (previous != null) {
IndexMeta prevMeta = map.get(previous.getIndexName());
IndexMeta currentMeta = map.get(routing.getIndexName());
if (prevMeta.priority == currentMeta.priority) {
if (prevMeta.creationDate == currentMeta.creationDate) {
if (prevMeta.name.equals(currentMeta.name) == false) {
assertTrue("indexName mismatch, expected:" + currentMeta.name + " after " + prevMeta.name + " " + prevMeta.name.compareTo(currentMeta.name), prevMeta.name.compareTo(currentMeta.name) > 0);
}
} else {
assertTrue("creationDate mismatch, expected:" + currentMeta.creationDate + " after " + prevMeta.creationDate, prevMeta.creationDate > currentMeta.creationDate);
}
} else {
assertTrue("priority mismatch, expected:" + currentMeta.priority + " after " + prevMeta.priority, prevMeta.priority > currentMeta.priority);
}
}
previous = routing;
}
}
private static class IndexMeta {
final String name;
final int priority;
final long creationDate;
final Settings settings;
private IndexMeta(String name) { // default
this.name = name;
this.priority = 1;
this.creationDate = -1;
this.settings = Settings.EMPTY;
}
private IndexMeta(String name, int priority, long creationDate) {
this.name = name;
this.priority = priority;
this.creationDate = creationDate;
this.settings = Settings.builder().put(IndexMetaData.SETTING_CREATION_DATE, creationDate)
.put(IndexMetaData.SETTING_PRIORITY, priority).build();
}
}
}