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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.shard;
import org.elasticsearch.Version;
import org.elasticsearch.cluster.metadata.IndexMetaData;
import org.elasticsearch.cluster.routing.AllocationId;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.env.Environment;
import org.elasticsearch.env.NodeEnvironment;
import org.elasticsearch.test.ESTestCase;
import org.elasticsearch.test.IndexSettingsModule;
import java.io.IOException;
import java.nio.file.Path;
import static org.elasticsearch.common.settings.Settings.settingsBuilder;
import static org.hamcrest.Matchers.containsString;
import static org.hamcrest.Matchers.is;
/**
*/
public class ShardPathTests extends ESTestCase {
public void testLoadShardPath() throws IOException {
try (final NodeEnvironment env = newNodeEnvironment(settingsBuilder().build())) {
Settings.Builder builder = settingsBuilder().put(IndexMetaData.SETTING_INDEX_UUID, "0xDEADBEEF")
.put(IndexMetaData.SETTING_VERSION_CREATED, Version.CURRENT);
Settings settings = builder.build();
ShardId shardId = new ShardId("foo", 0);
Path[] paths = env.availableShardPaths(shardId);
Path path = randomFrom(paths);
ShardStateMetaData.FORMAT.write(new ShardStateMetaData(2, true, "0xDEADBEEF", AllocationId.newInitializing()), 2, path);
ShardPath shardPath = ShardPath.loadShardPath(logger, env, shardId, IndexSettingsModule.newIndexSettings(shardId.index(), settings));
assertEquals(path, shardPath.getDataPath());
assertEquals("0xDEADBEEF", shardPath.getIndexUUID());
assertEquals("foo", shardPath.getShardId().getIndex());
assertEquals(path.resolve("translog"), shardPath.resolveTranslog());
assertEquals(path.resolve("index"), shardPath.resolveIndex());
}
}
public void testFailLoadShardPathOnMultiState() throws IOException {
try (final NodeEnvironment env = newNodeEnvironment(settingsBuilder().build())) {
Settings.Builder builder = settingsBuilder().put(IndexMetaData.SETTING_INDEX_UUID, "0xDEADBEEF")
.put(IndexMetaData.SETTING_VERSION_CREATED, Version.CURRENT);
Settings settings = builder.build();
ShardId shardId = new ShardId("foo", 0);
Path[] paths = env.availableShardPaths(shardId);
assumeTrue("This test tests multi data.path but we only got one", paths.length > 1);
int id = randomIntBetween(1, 10);
ShardStateMetaData.FORMAT.write(new ShardStateMetaData(id, true, "0xDEADBEEF", AllocationId.newInitializing()), id, paths);
ShardPath.loadShardPath(logger, env, shardId, IndexSettingsModule.newIndexSettings(shardId.index(), settings));
fail("Expected IllegalStateException");
} catch (IllegalStateException e) {
assertThat(e.getMessage(), containsString("more than one shard state found"));
}
}
public void testFailLoadShardPathIndexUUIDMissmatch() throws IOException {
try (final NodeEnvironment env = newNodeEnvironment(settingsBuilder().build())) {
Settings.Builder builder = settingsBuilder().put(IndexMetaData.SETTING_INDEX_UUID, "foobar")
.put(IndexMetaData.SETTING_VERSION_CREATED, Version.CURRENT);
Settings settings = builder.build();
ShardId shardId = new ShardId("foo", 0);
Path[] paths = env.availableShardPaths(shardId);
Path path = randomFrom(paths);
int id = randomIntBetween(1, 10);
ShardStateMetaData.FORMAT.write(new ShardStateMetaData(id, true, "0xDEADBEEF", AllocationId.newInitializing()), id, path);
ShardPath.loadShardPath(logger, env, shardId, IndexSettingsModule.newIndexSettings(shardId.index(), settings));
fail("Expected IllegalStateException");
} catch (IllegalStateException e) {
assertThat(e.getMessage(), containsString("expected: foobar on shard path"));
}
}
public void testIllegalCustomDataPath() {
final Path path = createTempDir().resolve("foo").resolve("0");
try {
new ShardPath(true, path, path, "foo", new ShardId("foo", 0));
fail("Expected IllegalArgumentException");
} catch (IllegalArgumentException e) {
assertThat(e.getMessage(), is("shard state path must be different to the data path when using custom data paths"));
}
}
public void testValidCtor() {
final Path path = createTempDir().resolve("foo").resolve("0");
ShardPath shardPath = new ShardPath(false, path, path, "foo", new ShardId("foo", 0));
assertFalse(shardPath.isCustomDataPath());
assertEquals(shardPath.getDataPath(), path);
assertEquals(shardPath.getShardStatePath(), path);
}
public void testGetRootPaths() throws IOException {
boolean useCustomDataPath = randomBoolean();
final Settings indexSetttings;
final Settings nodeSettings;
Settings.Builder indexSettingsBuilder = settingsBuilder()
.put(IndexMetaData.SETTING_INDEX_UUID, "0xDEADBEEF")
.put(IndexMetaData.SETTING_VERSION_CREATED, Version.CURRENT);
final Path customPath;
if (useCustomDataPath) {
final Path path = createTempDir();
final boolean includeNodeId = randomBoolean();
indexSetttings = indexSettingsBuilder.put(IndexMetaData.SETTING_DATA_PATH, "custom").build();
nodeSettings = settingsBuilder().put(Environment.PATH_SHARED_DATA_SETTING.getKey(), path.toAbsolutePath().toAbsolutePath())
.put(NodeEnvironment.ADD_NODE_ID_TO_CUSTOM_PATH, includeNodeId).build();
if (includeNodeId) {
customPath = path.resolve("custom").resolve("0");
} else {
customPath = path.resolve("custom");
}
} else {
customPath = null;
indexSetttings = indexSettingsBuilder.build();
nodeSettings = Settings.EMPTY;
}
try (final NodeEnvironment env = newNodeEnvironment(nodeSettings)) {
ShardId shardId = new ShardId("foo", 0);
Path[] paths = env.availableShardPaths(shardId);
Path path = randomFrom(paths);
ShardStateMetaData.FORMAT.write(new ShardStateMetaData(2, true, "0xDEADBEEF", AllocationId.newInitializing()), 2, path);
ShardPath shardPath = ShardPath.loadShardPath(logger, env, shardId, IndexSettingsModule.newIndexSettings(shardId.index(), indexSetttings));
boolean found = false;
for (Path p : env.nodeDataPaths()) {
if (p.equals(shardPath.getRootStatePath())) {
found = true;
break;
}
}
assertTrue("root state paths must be a node path but wasn't: " + shardPath.getRootStatePath(), found);
found = false;
if (useCustomDataPath) {
assertNotEquals(shardPath.getRootDataPath(), shardPath.getRootStatePath());
assertEquals(customPath, shardPath.getRootDataPath());
} else {
assertNull(customPath);
for (Path p : env.nodeDataPaths()) {
if (p.equals(shardPath.getRootDataPath())) {
found = true;
break;
}
}
assertTrue("root state paths must be a node path but wasn't: " + shardPath.getRootDataPath(), found);
}
}
}
}
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