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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.snapshots;
import com.carrotsearch.randomizedtesting.generators.RandomPicks;
import org.elasticsearch.action.admin.cluster.snapshots.create.CreateSnapshotResponse;
import org.elasticsearch.action.admin.cluster.snapshots.restore.RestoreSnapshotResponse;
import org.elasticsearch.action.admin.cluster.snapshots.status.SnapshotIndexShardStatus;
import org.elasticsearch.action.admin.cluster.snapshots.status.SnapshotStatus;
import org.elasticsearch.action.search.SearchResponse;
import org.elasticsearch.action.index.IndexRequest;
import org.elasticsearch.action.index.IndexRequestBuilder;
import org.elasticsearch.client.Client;
import org.elasticsearch.cluster.metadata.IndexMetaData;
import org.elasticsearch.common.io.FileSystemUtils;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.unit.ByteSizeUnit;
import org.elasticsearch.test.ESBackcompatTestCase;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.Arrays;
import java.util.List;
import java.util.concurrent.ExecutionException;
import static org.elasticsearch.test.hamcrest.ElasticsearchAssertions.assertAcked;
import static org.elasticsearch.test.hamcrest.ElasticsearchAssertions.assertHitCount;
import static org.elasticsearch.test.hamcrest.ElasticsearchAssertions.assertNoFailures;
import static org.hamcrest.Matchers.equalTo;
import static org.hamcrest.Matchers.greaterThan;
import static org.hamcrest.Matchers.lessThan;
public class SnapshotBackwardsCompatibilityIT extends ESBackcompatTestCase {
public void testSnapshotAndRestore() throws ExecutionException, InterruptedException, IOException {
logger.info("--> creating repository");
assertAcked(client().admin().cluster().preparePutRepository("test-repo")
.setType("fs").setSettings(Settings.settingsBuilder()
.put("location", randomRepoPath().toAbsolutePath())
.put("compress", randomBoolean())
.put("chunk_size", randomIntBetween(100, 1000), ByteSizeUnit.BYTES)));
String[] indicesBefore = new String[randomIntBetween(2,5)];
String[] indicesAfter = new String[randomIntBetween(2,5)];
for (int i = 0; i < indicesBefore.length; i++) {
indicesBefore[i] = "index_before_" + i;
createIndex(indicesBefore[i]);
}
for (int i = 0; i < indicesAfter.length; i++) {
indicesAfter[i] = "index_after_" + i;
createIndex(indicesAfter[i]);
}
String[] indices = new String[indicesBefore.length + indicesAfter.length];
System.arraycopy(indicesBefore, 0, indices, 0, indicesBefore.length);
System.arraycopy(indicesAfter, 0, indices, indicesBefore.length, indicesAfter.length);
ensureYellow();
logger.info("--> indexing some data");
IndexRequestBuilder[] buildersBefore = new IndexRequestBuilder[randomIntBetween(10, 200)];
for (int i = 0; i < buildersBefore.length; i++) {
buildersBefore[i] = client().prepareIndex(RandomPicks.randomFrom(getRandom(), indicesBefore), "foo", Integer.toString(i)).setSource("{ \"foo\" : \"bar\" } ");
}
IndexRequestBuilder[] buildersAfter = new IndexRequestBuilder[randomIntBetween(10, 200)];
for (int i = 0; i < buildersAfter.length; i++) {
buildersAfter[i] = client().prepareIndex(RandomPicks.randomFrom(getRandom(), indicesBefore), "bar", Integer.toString(i)).setSource("{ \"foo\" : \"bar\" } ");
}
indexRandom(true, buildersBefore);
indexRandom(true, buildersAfter);
assertThat(client().prepareSearch(indices).setSize(0).get().getHits().totalHits(), equalTo((long) (buildersBefore.length + buildersAfter.length)));
long[] counts = new long[indices.length];
for (int i = 0; i < indices.length; i++) {
counts[i] = client().prepareSearch(indices[i]).setSize(0).get().getHits().totalHits();
}
logger.info("--> snapshot subset of indices before upgrage");
CreateSnapshotResponse createSnapshotResponse = client().admin().cluster().prepareCreateSnapshot("test-repo", "test-snap-1").setWaitForCompletion(true).setIndices("index_before_*").get();
assertThat(createSnapshotResponse.getSnapshotInfo().successfulShards(), greaterThan(0));
assertThat(createSnapshotResponse.getSnapshotInfo().successfulShards(), equalTo(createSnapshotResponse.getSnapshotInfo().totalShards()));
assertThat(client().admin().cluster().prepareGetSnapshots("test-repo").setSnapshots("test-snap-1").get().getSnapshots().get(0).state(), equalTo(SnapshotState.SUCCESS));
logger.info("--> delete some data from indices that were already snapshotted");
int howMany = randomIntBetween(1, buildersBefore.length);
for (int i = 0; i < howMany; i++) {
IndexRequestBuilder indexRequestBuilder = RandomPicks.randomFrom(getRandom(), buildersBefore);
IndexRequest request = indexRequestBuilder.request();
client().prepareDelete(request.index(), request.type(), request.id()).get();
}
refresh();
final long numDocs = client().prepareSearch(indices).setSize(0).get().getHits().totalHits();
assertThat(client().prepareSearch(indices).setSize(0).get().getHits().totalHits(), lessThan((long) (buildersBefore.length + buildersAfter.length)));
disableAllocation(indices);
backwardsCluster().allowOnAllNodes(indices);
logClusterState();
boolean upgraded;
do {
logClusterState();
SearchResponse countResponse = client().prepareSearch().setSize(0).get();
assertHitCount(countResponse, numDocs);
upgraded = backwardsCluster().upgradeOneNode();
ensureYellow();
countResponse = client().prepareSearch().setSize(0).get();
assertHitCount(countResponse, numDocs);
} while (upgraded);
enableAllocation(indices);
logger.info("--> close indices");
client().admin().indices().prepareClose("index_before_*").get();
logger.info("--> verify repository");
client().admin().cluster().prepareVerifyRepository("test-repo").get();
logger.info("--> restore all indices from the snapshot");
RestoreSnapshotResponse restoreSnapshotResponse = client().admin().cluster().prepareRestoreSnapshot("test-repo", "test-snap-1").setWaitForCompletion(true).execute().actionGet();
assertThat(restoreSnapshotResponse.getRestoreInfo().totalShards(), greaterThan(0));
ensureYellow();
assertThat(client().prepareSearch(indices).setSize(0).get().getHits().totalHits(), equalTo((long) (buildersBefore.length + buildersAfter.length)));
for (int i = 0; i < indices.length; i++) {
assertThat(counts[i], equalTo(client().prepareSearch(indices[i]).setSize(0).get().getHits().totalHits()));
}
logger.info("--> snapshot subset of indices after upgrade");
createSnapshotResponse = client().admin().cluster().prepareCreateSnapshot("test-repo", "test-snap-2").setWaitForCompletion(true).setIndices("index_*").get();
assertThat(createSnapshotResponse.getSnapshotInfo().successfulShards(), greaterThan(0));
assertThat(createSnapshotResponse.getSnapshotInfo().successfulShards(), equalTo(createSnapshotResponse.getSnapshotInfo().totalShards()));
// Test restore after index deletion
logger.info("--> delete indices");
String index = RandomPicks.randomFrom(getRandom(), indices);
cluster().wipeIndices(index);
logger.info("--> restore one index after deletion");
restoreSnapshotResponse = client().admin().cluster().prepareRestoreSnapshot("test-repo", "test-snap-2").setWaitForCompletion(true).setIndices(index).execute().actionGet();
assertThat(restoreSnapshotResponse.getRestoreInfo().totalShards(), greaterThan(0));
ensureYellow();
assertThat(client().prepareSearch(indices).setSize(0).get().getHits().totalHits(), equalTo((long) (buildersBefore.length + buildersAfter.length)));
for (int i = 0; i < indices.length; i++) {
assertThat(counts[i], equalTo(client().prepareSearch(indices[i]).setSize(0).get().getHits().totalHits()));
}
}
public void testSnapshotMoreThanOnce() throws ExecutionException, InterruptedException, IOException {
Client client = client();
final Path tempDir = randomRepoPath().toAbsolutePath();
logger.info("--> creating repository");
assertAcked(client.admin().cluster().preparePutRepository("test-repo")
.setType("fs").setSettings(Settings.settingsBuilder()
.put("location", tempDir)
.put("compress", randomBoolean())
.put("chunk_size", randomIntBetween(100, 1000), ByteSizeUnit.BYTES)));
// only one shard
assertAcked(prepareCreate("test").setSettings(Settings.builder()
.put(IndexMetaData.SETTING_NUMBER_OF_SHARDS, 1)
.put(IndexMetaData.SETTING_NUMBER_OF_REPLICAS, 0)
));
ensureYellow();
logger.info("--> indexing");
final int numDocs = randomIntBetween(10, 100);
IndexRequestBuilder[] builders = new IndexRequestBuilder[numDocs];
for (int i = 0; i < builders.length; i++) {
builders[i] = client().prepareIndex("test", "doc", Integer.toString(i)).setSource("foo", "bar" + i);
}
indexRandom(true, builders);
flushAndRefresh();
assertNoFailures(client().admin().indices().prepareForceMerge("test").setFlush(true).setMaxNumSegments(1).get());
CreateSnapshotResponse createSnapshotResponseFirst = client.admin().cluster().prepareCreateSnapshot("test-repo", "test").setWaitForCompletion(true).setIndices("test").get();
assertThat(createSnapshotResponseFirst.getSnapshotInfo().successfulShards(), greaterThan(0));
assertThat(createSnapshotResponseFirst.getSnapshotInfo().successfulShards(), equalTo(createSnapshotResponseFirst.getSnapshotInfo().totalShards()));
assertThat(client.admin().cluster().prepareGetSnapshots("test-repo").setSnapshots("test").get().getSnapshots().get(0).state(), equalTo(SnapshotState.SUCCESS));
{
SnapshotStatus snapshotStatus = client.admin().cluster().prepareSnapshotStatus("test-repo").setSnapshots("test").get().getSnapshots().get(0);
List<SnapshotIndexShardStatus> shards = snapshotStatus.getShards();
for (SnapshotIndexShardStatus status : shards) {
assertThat(status.getStats().getProcessedFiles(), greaterThan(1));
}
}
if (frequently()) {
logger.info("--> upgrade");
disableAllocation("test");
backwardsCluster().allowOnAllNodes("test");
logClusterState();
boolean upgraded;
do {
logClusterState();
SearchResponse countResponse = client().prepareSearch().setSize(0).get();
assertHitCount(countResponse, numDocs);
upgraded = backwardsCluster().upgradeOneNode();
ensureYellow();
countResponse = client().prepareSearch().setSize(0).get();
assertHitCount(countResponse, numDocs);
} while (upgraded);
enableAllocation("test");
}
if (cluster().numDataNodes() > 1 && randomBoolean()) { // only bump the replicas if we have enough nodes
logger.info("--> move from 0 to 1 replica");
client().admin().indices().prepareUpdateSettings("test").setSettings(Settings.builder().put(IndexMetaData.SETTING_NUMBER_OF_REPLICAS, 1)).get();
}
logger.debug("---> repo exists: " + Files.exists(tempDir.resolve("indices/test/0")) + " files: " + Arrays.toString(FileSystemUtils.files(tempDir.resolve("indices/test/0")))); // it's only one shard!
CreateSnapshotResponse createSnapshotResponseSecond = client.admin().cluster().prepareCreateSnapshot("test-repo", "test-1").setWaitForCompletion(true).setIndices("test").get();
assertThat(createSnapshotResponseSecond.getSnapshotInfo().successfulShards(), greaterThan(0));
assertThat(createSnapshotResponseSecond.getSnapshotInfo().successfulShards(), equalTo(createSnapshotResponseSecond.getSnapshotInfo().totalShards()));
assertThat(client.admin().cluster().prepareGetSnapshots("test-repo").setSnapshots("test-1").get().getSnapshots().get(0).state(), equalTo(SnapshotState.SUCCESS));
{
SnapshotStatus snapshotStatus = client.admin().cluster().prepareSnapshotStatus("test-repo").setSnapshots("test-1").get().getSnapshots().get(0);
List<SnapshotIndexShardStatus> shards = snapshotStatus.getShards();
for (SnapshotIndexShardStatus status : shards) {
assertThat(status.getStats().getProcessedFiles(), equalTo(1)); // we flush before the snapshot such that we have to process the segments_N files
}
}
client().prepareDelete("test", "doc", "1").get();
CreateSnapshotResponse createSnapshotResponseThird = client.admin().cluster().prepareCreateSnapshot("test-repo", "test-2").setWaitForCompletion(true).setIndices("test").get();
assertThat(createSnapshotResponseThird.getSnapshotInfo().successfulShards(), greaterThan(0));
assertThat(createSnapshotResponseThird.getSnapshotInfo().successfulShards(), equalTo(createSnapshotResponseThird.getSnapshotInfo().totalShards()));
assertThat(client.admin().cluster().prepareGetSnapshots("test-repo").setSnapshots("test-2").get().getSnapshots().get(0).state(), equalTo(SnapshotState.SUCCESS));
{
SnapshotStatus snapshotStatus = client.admin().cluster().prepareSnapshotStatus("test-repo").setSnapshots("test-2").get().getSnapshots().get(0);
List<SnapshotIndexShardStatus> shards = snapshotStatus.getShards();
for (SnapshotIndexShardStatus status : shards) {
assertThat(status.getStats().getProcessedFiles(), equalTo(2)); // we flush before the snapshot such that we have to process the segments_N files plus the .del file
}
}
}
}
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