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diff --git a/core/src/test/java/org/elasticsearch/common/util/MultiDataPathUpgraderTests.java b/core/src/test/java/org/elasticsearch/common/util/MultiDataPathUpgraderTests.java
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--- a/core/src/test/java/org/elasticsearch/common/util/MultiDataPathUpgraderTests.java
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@@ -1,297 +0,0 @@
-/*
- * 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.common.util;
-
-import org.apache.lucene.util.CollectionUtil;
-import org.apache.lucene.util.LuceneTestCase;
-import org.apache.lucene.util.TestUtil;
-import org.elasticsearch.bwcompat.OldIndexBackwardsCompatibilityIT;
-import org.elasticsearch.cluster.metadata.IndexMetaData;
-import org.elasticsearch.cluster.routing.AllocationId;
-import org.elasticsearch.common.Strings;
-import org.elasticsearch.common.collect.Tuple;
-import org.elasticsearch.common.io.FileSystemUtils;
-import org.elasticsearch.common.util.set.Sets;
-import org.elasticsearch.env.NodeEnvironment;
-import org.elasticsearch.gateway.MetaDataStateFormat;
-import org.elasticsearch.index.shard.ShardId;
-import org.elasticsearch.index.shard.ShardPath;
-import org.elasticsearch.index.shard.ShardStateMetaData;
-import org.elasticsearch.test.ESTestCase;
-
-import java.io.BufferedWriter;
-import java.io.IOException;
-import java.io.InputStream;
-import java.net.URISyntaxException;
-import java.nio.charset.StandardCharsets;
-import java.nio.file.DirectoryStream;
-import java.nio.file.Files;
-import java.nio.file.Path;
-import java.util.ArrayList;
-import java.util.Comparator;
-import java.util.HashMap;
-import java.util.HashSet;
-import java.util.List;
-import java.util.Locale;
-import java.util.Map;
-
-/**
- */
-@LuceneTestCase.SuppressFileSystems("ExtrasFS")
-public class MultiDataPathUpgraderTests extends ESTestCase {
-
- public void testUpgradeRandomPaths() throws IOException {
- try (NodeEnvironment nodeEnvironment = newNodeEnvironment()) {
- final String uuid = Strings.base64UUID();
- final ShardId shardId = new ShardId("foo", 0);
- final Path[] shardDataPaths = nodeEnvironment.availableShardPaths(shardId);
- if (nodeEnvironment.nodeDataPaths().length == 1) {
- MultiDataPathUpgrader helper = new MultiDataPathUpgrader(nodeEnvironment);
- assertFalse(helper.needsUpgrading(shardId));
- return;
- }
- int numIdxFiles = 0;
- int numTranslogFiles = 0;
- int metaStateVersion = 0;
- for (Path shardPath : shardDataPaths) {
- final Path translog = shardPath.resolve(ShardPath.TRANSLOG_FOLDER_NAME);
- final Path idx = shardPath.resolve(ShardPath.INDEX_FOLDER_NAME);
- Files.createDirectories(translog);
- Files.createDirectories(idx);
- int numFiles = randomIntBetween(1, 10);
- for (int i = 0; i < numFiles; i++, numIdxFiles++) {
- String filename = Integer.toString(numIdxFiles);
- try (BufferedWriter w = Files.newBufferedWriter(idx.resolve(filename + ".tst"), StandardCharsets.UTF_8)) {
- w.write(filename);
- }
- }
- numFiles = randomIntBetween(1, 10);
- for (int i = 0; i < numFiles; i++, numTranslogFiles++) {
- String filename = Integer.toString(numTranslogFiles);
- try (BufferedWriter w = Files.newBufferedWriter(translog.resolve(filename + ".translog"), StandardCharsets.UTF_8)) {
- w.write(filename);
- }
- }
- ++metaStateVersion;
- ShardStateMetaData.FORMAT.write(new ShardStateMetaData(metaStateVersion, true, uuid, AllocationId.newInitializing()), metaStateVersion, shardDataPaths);
- }
- final Path path = randomFrom(shardDataPaths);
- ShardPath targetPath = new ShardPath(false, path, path, uuid, new ShardId("foo", 0));
- MultiDataPathUpgrader helper = new MultiDataPathUpgrader(nodeEnvironment);
- helper.upgrade(shardId, targetPath);
- assertFalse(helper.needsUpgrading(shardId));
- if (shardDataPaths.length > 1) {
- for (Path shardPath : shardDataPaths) {
- if (shardPath.equals(targetPath.getDataPath())) {
- continue;
- }
- final Path translog = shardPath.resolve(ShardPath.TRANSLOG_FOLDER_NAME);
- final Path idx = shardPath.resolve(ShardPath.INDEX_FOLDER_NAME);
- final Path state = shardPath.resolve(MetaDataStateFormat.STATE_DIR_NAME);
- assertFalse(Files.exists(translog));
- assertFalse(Files.exists(idx));
- assertFalse(Files.exists(state));
- assertFalse(Files.exists(shardPath));
- }
- }
-
- final ShardStateMetaData stateMetaData = ShardStateMetaData.FORMAT.loadLatestState(logger, targetPath.getShardStatePath());
- assertEquals(metaStateVersion, stateMetaData.version);
- assertTrue(stateMetaData.primary);
- assertEquals(uuid, stateMetaData.indexUUID);
- final Path translog = targetPath.getDataPath().resolve(ShardPath.TRANSLOG_FOLDER_NAME);
- final Path idx = targetPath.getDataPath().resolve(ShardPath.INDEX_FOLDER_NAME);
- Files.deleteIfExists(idx.resolve("write.lock"));
- assertEquals(numTranslogFiles, FileSystemUtils.files(translog).length);
- assertEquals(numIdxFiles, FileSystemUtils.files(idx).length);
- final HashSet<Path> translogFiles = Sets.newHashSet(FileSystemUtils.files(translog));
- for (int i = 0; i < numTranslogFiles; i++) {
- final String name = Integer.toString(i);
- translogFiles.contains(translog.resolve(name + ".translog"));
- byte[] content = Files.readAllBytes(translog.resolve(name + ".translog"));
- assertEquals(name , new String(content, StandardCharsets.UTF_8));
- }
- final HashSet<Path> idxFiles = Sets.newHashSet(FileSystemUtils.files(idx));
- for (int i = 0; i < numIdxFiles; i++) {
- final String name = Integer.toString(i);
- idxFiles.contains(idx.resolve(name + ".tst"));
- byte[] content = Files.readAllBytes(idx.resolve(name + ".tst"));
- assertEquals(name , new String(content, StandardCharsets.UTF_8));
- }
- }
- }
-
- /**
- * Run upgrade on a real bwc index
- */
- public void testUpgradeRealIndex() throws IOException, URISyntaxException {
- List<Path> indexes = new ArrayList<>();
- try (DirectoryStream<Path> stream = Files.newDirectoryStream(getBwcIndicesPath(), "index-*.zip")) {
- for (Path path : stream) {
- indexes.add(path);
- }
- }
- CollectionUtil.introSort(indexes, new Comparator<Path>() {
- @Override
- public int compare(Path o1, Path o2) {
- return o1.getFileName().compareTo(o2.getFileName());
- }
- });
- final ShardId shardId = new ShardId("test", 0);
- final Path path = randomFrom(indexes);
- final Path indexFile = path;
- final String indexName = indexFile.getFileName().toString().replace(".zip", "").toLowerCase(Locale.ROOT);
- try (NodeEnvironment nodeEnvironment = newNodeEnvironment()) {
- if (nodeEnvironment.nodeDataPaths().length == 1) {
- MultiDataPathUpgrader helper = new MultiDataPathUpgrader(nodeEnvironment);
- assertFalse(helper.needsUpgrading(shardId));
- return;
- }
- Path unzipDir = createTempDir();
- Path unzipDataDir = unzipDir.resolve("data");
- // decompress the index
- try (InputStream stream = Files.newInputStream(indexFile)) {
- TestUtil.unzip(stream, unzipDir);
- }
- // check it is unique
- assertTrue(Files.exists(unzipDataDir));
- Path[] list = FileSystemUtils.files(unzipDataDir);
- if (list.length != 1) {
- throw new IllegalStateException("Backwards index must contain exactly one cluster but was " + list.length);
- }
- // the bwc scripts packs the indices under this path
- Path src = list[0].resolve("nodes/0/indices/" + indexName);
- assertTrue("[" + indexFile + "] missing index dir: " + src.toString(), Files.exists(src));
- Path[] multiDataPath = new Path[nodeEnvironment.nodeDataPaths().length];
- int i = 0;
- for (NodeEnvironment.NodePath nodePath : nodeEnvironment.nodePaths()) {
- multiDataPath[i++] = nodePath.indicesPath;
- }
- logger.info("--> injecting index [{}] into multiple data paths", indexName);
- OldIndexBackwardsCompatibilityIT.copyIndex(logger, src, indexName, multiDataPath);
- final ShardPath shardPath = new ShardPath(false, nodeEnvironment.availableShardPaths(new ShardId(indexName, 0))[0], nodeEnvironment.availableShardPaths(new ShardId(indexName, 0))[0], IndexMetaData.INDEX_UUID_NA_VALUE, new ShardId(indexName, 0));
-
- logger.info("{}", (Object)FileSystemUtils.files(shardPath.resolveIndex()));
-
- MultiDataPathUpgrader helper = new MultiDataPathUpgrader(nodeEnvironment);
- helper.upgrade(new ShardId(indexName, 0), shardPath);
- helper.checkIndex(shardPath);
- assertFalse(helper.needsUpgrading(new ShardId(indexName, 0)));
- }
- }
-
- public void testNeedsUpgrade() throws IOException {
- try (NodeEnvironment nodeEnvironment = newNodeEnvironment()) {
- String uuid = Strings.randomBase64UUID();
- final ShardId shardId = new ShardId("foo", 0);
- ShardStateMetaData.FORMAT.write(new ShardStateMetaData(1, true, uuid, AllocationId.newInitializing()), 1, nodeEnvironment.availableShardPaths(shardId));
- MultiDataPathUpgrader helper = new MultiDataPathUpgrader(nodeEnvironment);
- boolean multiDataPaths = nodeEnvironment.nodeDataPaths().length > 1;
- boolean needsUpgrading = helper.needsUpgrading(shardId);
- if (multiDataPaths) {
- assertTrue(needsUpgrading);
- } else {
- assertFalse(needsUpgrading);
- }
- }
- }
-
- public void testPickTargetShardPath() throws IOException {
- try (NodeEnvironment nodeEnvironment = newNodeEnvironment()) {
- final ShardId shard = new ShardId("foo", 0);
- final Path[] paths = nodeEnvironment.availableShardPaths(shard);
- if (paths.length == 1) {
- MultiDataPathUpgrader helper = new MultiDataPathUpgrader(nodeEnvironment);
- try {
- helper.pickShardPath(new ShardId("foo", 0));
- fail("one path needs no upgrading");
- } catch (IllegalStateException ex) {
- // only one path
- }
- } else {
- final Map<Path, Tuple<Long, Long>> pathToSpace = new HashMap<>();
- final Path expectedPath;
- if (randomBoolean()) { // path with most of the file bytes
- expectedPath = randomFrom(paths);
- long[] used = new long[paths.length];
- long sumSpaceUsed = 0;
- for (int i = 0; i < used.length; i++) {
- long spaceUsed = paths[i] == expectedPath ? randomIntBetween(101, 200) : randomIntBetween(10, 100);
- sumSpaceUsed += spaceUsed;
- used[i] = spaceUsed;
- }
- for (int i = 0; i < used.length; i++) {
- long availalbe = randomIntBetween((int)(2*sumSpaceUsed-used[i]), 4 * (int)sumSpaceUsed);
- pathToSpace.put(paths[i], new Tuple<>(availalbe, used[i]));
- }
- } else { // path with largest available space
- expectedPath = randomFrom(paths);
- long[] used = new long[paths.length];
- long sumSpaceUsed = 0;
- for (int i = 0; i < used.length; i++) {
- long spaceUsed = randomIntBetween(10, 100);
- sumSpaceUsed += spaceUsed;
- used[i] = spaceUsed;
- }
-
- for (int i = 0; i < used.length; i++) {
- long availalbe = paths[i] == expectedPath ? randomIntBetween((int)(sumSpaceUsed), (int)(2*sumSpaceUsed)) : randomIntBetween(0, (int)(sumSpaceUsed) - 1) ;
- pathToSpace.put(paths[i], new Tuple<>(availalbe, used[i]));
- }
-
- }
- MultiDataPathUpgrader helper = new MultiDataPathUpgrader(nodeEnvironment) {
- @Override
- protected long getUsabelSpace(NodeEnvironment.NodePath path) throws IOException {
- return pathToSpace.get(path.resolve(shard)).v1();
- }
-
- @Override
- protected long getSpaceUsedByShard(Path path) throws IOException {
- return pathToSpace.get(path).v2();
- }
- };
- String uuid = Strings.randomBase64UUID();
- ShardStateMetaData.FORMAT.write(new ShardStateMetaData(1, true, uuid, AllocationId.newInitializing()), 1, paths);
- final ShardPath shardPath = helper.pickShardPath(new ShardId("foo", 0));
- assertEquals(expectedPath, shardPath.getDataPath());
- assertEquals(expectedPath, shardPath.getShardStatePath());
- }
-
- MultiDataPathUpgrader helper = new MultiDataPathUpgrader(nodeEnvironment) {
- @Override
- protected long getUsabelSpace(NodeEnvironment.NodePath path) throws IOException {
- return randomIntBetween(0, 10);
- }
-
- @Override
- protected long getSpaceUsedByShard(Path path) throws IOException {
- return randomIntBetween(11, 20);
- }
- };
-
- try {
- helper.pickShardPath(new ShardId("foo", 0));
- fail("not enough space");
- } catch (IllegalStateException ex) {
- // not enough space
- }
- }
- }
-}
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