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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.repositories.blobstore;
import com.google.common.io.ByteStreams;
import org.apache.lucene.store.RateLimiter;
import org.elasticsearch.ElasticsearchParseException;
import org.elasticsearch.Version;
import org.elasticsearch.cluster.metadata.IndexMetaData;
import org.elasticsearch.cluster.metadata.MetaData;
import org.elasticsearch.cluster.metadata.SnapshotId;
import org.elasticsearch.common.ParseFieldMatcher;
import org.elasticsearch.common.Strings;
import org.elasticsearch.common.blobstore.BlobContainer;
import org.elasticsearch.common.blobstore.BlobMetaData;
import org.elasticsearch.common.blobstore.BlobPath;
import org.elasticsearch.common.blobstore.BlobStore;
import org.elasticsearch.common.bytes.BytesArray;
import org.elasticsearch.common.bytes.BytesReference;
import org.elasticsearch.common.component.AbstractLifecycleComponent;
import org.elasticsearch.common.compress.NotXContentException;
import org.elasticsearch.common.io.stream.BytesStreamOutput;
import org.elasticsearch.common.io.stream.OutputStreamStreamOutput;
import org.elasticsearch.common.io.stream.StreamOutput;
import org.elasticsearch.common.metrics.CounterMetric;
import org.elasticsearch.common.unit.ByteSizeUnit;
import org.elasticsearch.common.unit.ByteSizeValue;
import org.elasticsearch.common.xcontent.XContentBuilder;
import org.elasticsearch.common.xcontent.XContentFactory;
import org.elasticsearch.common.xcontent.XContentHelper;
import org.elasticsearch.common.xcontent.XContentParser;
import org.elasticsearch.common.xcontent.XContentType;
import org.elasticsearch.index.shard.ShardId;
import org.elasticsearch.index.snapshots.IndexShardRepository;
import org.elasticsearch.index.snapshots.blobstore.BlobStoreIndexShardRepository;
import org.elasticsearch.index.snapshots.blobstore.BlobStoreIndexShardRepository.RateLimiterListener;
import org.elasticsearch.repositories.Repository;
import org.elasticsearch.repositories.RepositoryException;
import org.elasticsearch.repositories.RepositorySettings;
import org.elasticsearch.repositories.RepositoryVerificationException;
import org.elasticsearch.snapshots.InvalidSnapshotNameException;
import org.elasticsearch.snapshots.Snapshot;
import org.elasticsearch.snapshots.SnapshotCreationException;
import org.elasticsearch.snapshots.SnapshotException;
import org.elasticsearch.snapshots.SnapshotMissingException;
import org.elasticsearch.snapshots.SnapshotShardFailure;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.nio.file.NoSuchFileException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Map;
/**
* BlobStore - based implementation of Snapshot Repository
* <p>
* This repository works with any {@link BlobStore} implementation. The blobStore should be initialized in the derived
* class before {@link #doStart()} is called.
* <p>
* BlobStoreRepository maintains the following structure in the blob store
* <pre>
* {@code
* STORE_ROOT
* |- index - list of all snapshot name as JSON array
* |- snapshot-20131010 - JSON serialized Snapshot for snapshot "20131010"
* |- meta-20131010.dat - JSON serialized MetaData for snapshot "20131010" (includes only global metadata)
* |- snapshot-20131011 - JSON serialized Snapshot for snapshot "20131011"
* |- meta-20131011.dat - JSON serialized MetaData for snapshot "20131011"
* .....
* |- indices/ - data for all indices
* |- foo/ - data for index "foo"
* | |- meta-20131010.dat - JSON Serialized IndexMetaData for index "foo"
* | |- 0/ - data for shard "0" of index "foo"
* | | |- __1 \
* | | |- __2 |
* | | |- __3 |- files from different segments see snapshot-* for their mappings to real segment files
* | | |- __4 |
* | | |- __5 /
* | | .....
* | | |- snap-20131010.dat - JSON serialized BlobStoreIndexShardSnapshot for snapshot "20131010"
* | | |- snap-20131011.dat - JSON serialized BlobStoreIndexShardSnapshot for snapshot "20131011"
* | | |- list-123 - JSON serialized BlobStoreIndexShardSnapshot for snapshot "20131011"
* | |
* | |- 1/ - data for shard "1" of index "foo"
* | | |- __1
* | | .....
* | |
* | |-2/
* | ......
* |
* |- bar/ - data for index bar
* ......
* }
* </pre>
*/
public abstract class BlobStoreRepository extends AbstractLifecycleComponent<Repository> implements Repository, RateLimiterListener {
private BlobContainer snapshotsBlobContainer;
protected final String repositoryName;
private static final String LEGACY_SNAPSHOT_PREFIX = "snapshot-";
private static final String SNAPSHOT_PREFIX = "snap-";
private static final String SNAPSHOT_SUFFIX = ".dat";
private static final String COMMON_SNAPSHOT_PREFIX = "snap";
private static final String SNAPSHOT_CODEC = "snapshot";
private static final String SNAPSHOTS_FILE = "index";
private static final String TESTS_FILE = "tests-";
private static final String METADATA_NAME_FORMAT = "meta-%s.dat";
private static final String LEGACY_METADATA_NAME_FORMAT = "metadata-%s";
private static final String METADATA_CODEC = "metadata";
private static final String INDEX_METADATA_CODEC = "index-metadata";
private static final String SNAPSHOT_NAME_FORMAT = SNAPSHOT_PREFIX + "%s" + SNAPSHOT_SUFFIX;
private static final String LEGACY_SNAPSHOT_NAME_FORMAT = LEGACY_SNAPSHOT_PREFIX + "%s";
private final BlobStoreIndexShardRepository indexShardRepository;
private final RateLimiter snapshotRateLimiter;
private final RateLimiter restoreRateLimiter;
private final CounterMetric snapshotRateLimitingTimeInNanos = new CounterMetric();
private final CounterMetric restoreRateLimitingTimeInNanos = new CounterMetric();
private ChecksumBlobStoreFormat<MetaData> globalMetaDataFormat;
private LegacyBlobStoreFormat<MetaData> globalMetaDataLegacyFormat;
private ChecksumBlobStoreFormat<IndexMetaData> indexMetaDataFormat;
private LegacyBlobStoreFormat<IndexMetaData> indexMetaDataLegacyFormat;
private ChecksumBlobStoreFormat<Snapshot> snapshotFormat;
private LegacyBlobStoreFormat<Snapshot> snapshotLegacyFormat;
private final boolean readOnly;
/**
* Constructs new BlobStoreRepository
*
* @param repositoryName repository name
* @param repositorySettings repository settings
* @param indexShardRepository an instance of IndexShardRepository
*/
protected BlobStoreRepository(String repositoryName, RepositorySettings repositorySettings, IndexShardRepository indexShardRepository) {
super(repositorySettings.globalSettings());
this.repositoryName = repositoryName;
this.indexShardRepository = (BlobStoreIndexShardRepository) indexShardRepository;
snapshotRateLimiter = getRateLimiter(repositorySettings, "max_snapshot_bytes_per_sec", new ByteSizeValue(40, ByteSizeUnit.MB));
restoreRateLimiter = getRateLimiter(repositorySettings, "max_restore_bytes_per_sec", new ByteSizeValue(40, ByteSizeUnit.MB));
readOnly = repositorySettings.settings().getAsBoolean("readonly", false);
}
/**
* {@inheritDoc}
*/
@Override
protected void doStart() {
this.snapshotsBlobContainer = blobStore().blobContainer(basePath());
indexShardRepository.initialize(blobStore(), basePath(), chunkSize(), snapshotRateLimiter, restoreRateLimiter, this, isCompress());
ParseFieldMatcher parseFieldMatcher = new ParseFieldMatcher(settings);
globalMetaDataFormat = new ChecksumBlobStoreFormat<>(METADATA_CODEC, METADATA_NAME_FORMAT, MetaData.PROTO, parseFieldMatcher, isCompress());
globalMetaDataLegacyFormat = new LegacyBlobStoreFormat<>(LEGACY_METADATA_NAME_FORMAT, MetaData.PROTO, parseFieldMatcher);
indexMetaDataFormat = new ChecksumBlobStoreFormat<>(INDEX_METADATA_CODEC, METADATA_NAME_FORMAT, IndexMetaData.PROTO, parseFieldMatcher, isCompress());
indexMetaDataLegacyFormat = new LegacyBlobStoreFormat<>(LEGACY_SNAPSHOT_NAME_FORMAT, IndexMetaData.PROTO, parseFieldMatcher);
snapshotFormat = new ChecksumBlobStoreFormat<>(SNAPSHOT_CODEC, SNAPSHOT_NAME_FORMAT, Snapshot.PROTO, parseFieldMatcher, isCompress());
snapshotLegacyFormat = new LegacyBlobStoreFormat<>(LEGACY_SNAPSHOT_NAME_FORMAT, Snapshot.PROTO, parseFieldMatcher);
}
/**
* {@inheritDoc}
*/
@Override
protected void doStop() {
}
/**
* {@inheritDoc}
*/
@Override
protected void doClose() {
try {
blobStore().close();
} catch (Throwable t) {
logger.warn("cannot close blob store", t);
}
}
/**
* Returns initialized and ready to use BlobStore
* <p>
* This method is first called in the {@link #doStart()} method.
*
* @return blob store
*/
abstract protected BlobStore blobStore();
/**
* Returns base path of the repository
*/
abstract protected BlobPath basePath();
/**
* Returns true if metadata and snapshot files should be compressed
*
* @return true if compression is needed
*/
protected boolean isCompress() {
return false;
}
/**
* Returns data file chunk size.
* <p>
* This method should return null if no chunking is needed.
*
* @return chunk size
*/
protected ByteSizeValue chunkSize() {
return null;
}
/**
* {@inheritDoc}
*/
@Override
public void initializeSnapshot(SnapshotId snapshotId, List<String> indices, MetaData metaData) {
if (readOnly()) {
throw new RepositoryException(this.repositoryName, "cannot create snapshot in a readonly repository");
}
try {
if (snapshotFormat.exists(snapshotsBlobContainer, snapshotId.getSnapshot()) ||
snapshotLegacyFormat.exists(snapshotsBlobContainer, snapshotId.getSnapshot())) {
throw new InvalidSnapshotNameException(snapshotId, "snapshot with such name already exists");
}
// Write Global MetaData
globalMetaDataFormat.write(metaData, snapshotsBlobContainer, snapshotId.getSnapshot());
for (String index : indices) {
final IndexMetaData indexMetaData = metaData.index(index);
final BlobPath indexPath = basePath().add("indices").add(index);
final BlobContainer indexMetaDataBlobContainer = blobStore().blobContainer(indexPath);
indexMetaDataFormat.write(indexMetaData, indexMetaDataBlobContainer, snapshotId.getSnapshot());
}
} catch (IOException ex) {
throw new SnapshotCreationException(snapshotId, ex);
}
}
/**
* {@inheritDoc}
*/
@Override
public void deleteSnapshot(SnapshotId snapshotId) {
if (readOnly()) {
throw new RepositoryException(this.repositoryName, "cannot delete snapshot from a readonly repository");
}
List<String> indices = Collections.EMPTY_LIST;
Snapshot snapshot = null;
try {
snapshot = readSnapshot(snapshotId);
indices = snapshot.indices();
} catch (SnapshotMissingException ex) {
throw ex;
} catch (IllegalStateException | SnapshotException | ElasticsearchParseException ex) {
logger.warn("cannot read snapshot file [{}]", ex, snapshotId);
}
MetaData metaData = null;
try {
if (snapshot != null) {
metaData = readSnapshotMetaData(snapshotId, snapshot.version(), indices, true);
} else {
metaData = readSnapshotMetaData(snapshotId, null, indices, true);
}
} catch (IOException | SnapshotException ex) {
logger.warn("cannot read metadata for snapshot [{}]", ex, snapshotId);
}
try {
// Delete snapshot file first so we wouldn't end up with partially deleted snapshot that looks OK
if (snapshot != null) {
snapshotFormat(snapshot.version()).delete(snapshotsBlobContainer, snapshotId.getSnapshot());
globalMetaDataFormat(snapshot.version()).delete(snapshotsBlobContainer, snapshotId.getSnapshot());
} else {
// We don't know which version was the snapshot created with - try deleting both current and legacy formats
snapshotFormat.delete(snapshotsBlobContainer, snapshotId.getSnapshot());
snapshotLegacyFormat.delete(snapshotsBlobContainer, snapshotId.getSnapshot());
globalMetaDataLegacyFormat.delete(snapshotsBlobContainer, snapshotId.getSnapshot());
globalMetaDataFormat.delete(snapshotsBlobContainer, snapshotId.getSnapshot());
}
// Delete snapshot from the snapshot list
List<SnapshotId> snapshotIds = snapshots();
if (snapshotIds.contains(snapshotId)) {
List<SnapshotId> builder = new ArrayList<>();
for (SnapshotId id : snapshotIds) {
if (!snapshotId.equals(id)) {
builder.add(id);
}
}
snapshotIds = Collections.unmodifiableList(builder);
}
writeSnapshotList(snapshotIds);
// Now delete all indices
for (String index : indices) {
BlobPath indexPath = basePath().add("indices").add(index);
BlobContainer indexMetaDataBlobContainer = blobStore().blobContainer(indexPath);
try {
indexMetaDataFormat(snapshot.version()).delete(indexMetaDataBlobContainer, snapshotId.getSnapshot());
} catch (IOException ex) {
logger.warn("[{}] failed to delete metadata for index [{}]", ex, snapshotId, index);
}
if (metaData != null) {
IndexMetaData indexMetaData = metaData.index(index);
if (indexMetaData != null) {
for (int i = 0; i < indexMetaData.getNumberOfShards(); i++) {
ShardId shardId = new ShardId(index, i);
try {
indexShardRepository.delete(snapshotId, snapshot.version(), shardId);
} catch (SnapshotException ex) {
logger.warn("[{}] failed to delete shard data for shard [{}]", ex, snapshotId, shardId);
}
}
}
}
}
} catch (IOException ex) {
throw new RepositoryException(this.repositoryName, "failed to update snapshot in repository", ex);
}
}
/**
* {@inheritDoc}
*/
@Override
public Snapshot finalizeSnapshot(SnapshotId snapshotId, List<String> indices, long startTime, String failure, int totalShards, List<SnapshotShardFailure> shardFailures) {
try {
Snapshot blobStoreSnapshot = new Snapshot(snapshotId.getSnapshot(), indices, startTime, failure, System.currentTimeMillis(), totalShards, shardFailures);
snapshotFormat.write(blobStoreSnapshot, snapshotsBlobContainer, snapshotId.getSnapshot());
List<SnapshotId> snapshotIds = snapshots();
if (!snapshotIds.contains(snapshotId)) {
snapshotIds = new ArrayList<>(snapshotIds);
snapshotIds.add(snapshotId);
snapshotIds = Collections.unmodifiableList(snapshotIds);
}
writeSnapshotList(snapshotIds);
return blobStoreSnapshot;
} catch (IOException ex) {
throw new RepositoryException(this.repositoryName, "failed to update snapshot in repository", ex);
}
}
/**
* {@inheritDoc}
*/
@Override
public List<SnapshotId> snapshots() {
try {
List<SnapshotId> snapshots = new ArrayList<>();
Map<String, BlobMetaData> blobs;
try {
blobs = snapshotsBlobContainer.listBlobsByPrefix(COMMON_SNAPSHOT_PREFIX);
} catch (UnsupportedOperationException ex) {
// Fall back in case listBlobsByPrefix isn't supported by the blob store
return readSnapshotList();
}
int prefixLength = SNAPSHOT_PREFIX.length();
int suffixLength = SNAPSHOT_SUFFIX.length();
int legacyPrefixLength = LEGACY_SNAPSHOT_PREFIX.length();
for (BlobMetaData md : blobs.values()) {
String blobName = md.name();
final String name;
if (blobName.startsWith(SNAPSHOT_PREFIX) && blobName.length() > legacyPrefixLength) {
name = blobName.substring(prefixLength, blobName.length() - suffixLength);
} else if (blobName.startsWith(LEGACY_SNAPSHOT_PREFIX) && blobName.length() > suffixLength + prefixLength) {
name = blobName.substring(legacyPrefixLength);
} else {
// not sure what it was - ignore
continue;
}
snapshots.add(new SnapshotId(repositoryName, name));
}
return Collections.unmodifiableList(snapshots);
} catch (IOException ex) {
throw new RepositoryException(repositoryName, "failed to list snapshots in repository", ex);
}
}
/**
* {@inheritDoc}
*/
@Override
public MetaData readSnapshotMetaData(SnapshotId snapshotId, Snapshot snapshot, List<String> indices) throws IOException {
return readSnapshotMetaData(snapshotId, snapshot.version(), indices, false);
}
/**
* {@inheritDoc}
*/
@Override
public Snapshot readSnapshot(SnapshotId snapshotId) {
try {
return snapshotFormat.read(snapshotsBlobContainer, snapshotId.getSnapshot());
} catch (FileNotFoundException | NoSuchFileException ex) {
// File is missing - let's try legacy format instead
try {
return snapshotLegacyFormat.read(snapshotsBlobContainer, snapshotId.getSnapshot());
} catch (FileNotFoundException | NoSuchFileException ex1) {
throw new SnapshotMissingException(snapshotId, ex);
} catch (IOException | NotXContentException ex1) {
throw new SnapshotException(snapshotId, "failed to get snapshots", ex1);
}
} catch (IOException | NotXContentException ex) {
throw new SnapshotException(snapshotId, "failed to get snapshots", ex);
}
}
private MetaData readSnapshotMetaData(SnapshotId snapshotId, Version snapshotVersion, List<String> indices, boolean ignoreIndexErrors) throws IOException {
MetaData metaData;
if (snapshotVersion == null) {
// When we delete corrupted snapshots we might not know which version we are dealing with
// We can try detecting the version based on the metadata file format
assert ignoreIndexErrors;
if (globalMetaDataFormat.exists(snapshotsBlobContainer, snapshotId.getSnapshot())) {
snapshotVersion = Version.CURRENT;
} else if (globalMetaDataLegacyFormat.exists(snapshotsBlobContainer, snapshotId.getSnapshot())) {
snapshotVersion = Version.V_1_0_0;
} else {
throw new SnapshotMissingException(snapshotId);
}
}
try {
metaData = globalMetaDataFormat(snapshotVersion).read(snapshotsBlobContainer, snapshotId.getSnapshot());
} catch (FileNotFoundException | NoSuchFileException ex) {
throw new SnapshotMissingException(snapshotId, ex);
} catch (IOException ex) {
throw new SnapshotException(snapshotId, "failed to get snapshots", ex);
}
MetaData.Builder metaDataBuilder = MetaData.builder(metaData);
for (String index : indices) {
BlobPath indexPath = basePath().add("indices").add(index);
BlobContainer indexMetaDataBlobContainer = blobStore().blobContainer(indexPath);
try {
metaDataBuilder.put(indexMetaDataFormat(snapshotVersion).read(indexMetaDataBlobContainer, snapshotId.getSnapshot()), false);
} catch (ElasticsearchParseException | IOException ex) {
if (ignoreIndexErrors) {
logger.warn("[{}] [{}] failed to read metadata for index", ex, snapshotId, index);
} else {
throw ex;
}
}
}
return metaDataBuilder.build();
}
/**
* Configures RateLimiter based on repository and global settings
*
* @param repositorySettings repository settings
* @param setting setting to use to configure rate limiter
* @param defaultRate default limiting rate
* @return rate limiter or null of no throttling is needed
*/
private RateLimiter getRateLimiter(RepositorySettings repositorySettings, String setting, ByteSizeValue defaultRate) {
ByteSizeValue maxSnapshotBytesPerSec = repositorySettings.settings().getAsBytesSize(setting,
settings.getAsBytesSize(setting, defaultRate));
if (maxSnapshotBytesPerSec.bytes() <= 0) {
return null;
} else {
return new RateLimiter.SimpleRateLimiter(maxSnapshotBytesPerSec.mbFrac());
}
}
/**
* Returns appropriate global metadata format based on the provided version of the snapshot
*/
private BlobStoreFormat<MetaData> globalMetaDataFormat(Version version) {
if(legacyMetaData(version)) {
return globalMetaDataLegacyFormat;
} else {
return globalMetaDataFormat;
}
}
/**
* Returns appropriate snapshot format based on the provided version of the snapshot
*/
private BlobStoreFormat<Snapshot> snapshotFormat(Version version) {
if(legacyMetaData(version)) {
return snapshotLegacyFormat;
} else {
return snapshotFormat;
}
}
/**
* In v2.0.0 we changed the matadata file format
* @return true if legacy version should be used false otherwise
*/
public static boolean legacyMetaData(Version version) {
return version.before(Version.V_2_0_0_beta1);
}
/**
* Returns appropriate index metadata format based on the provided version of the snapshot
*/
private BlobStoreFormat<IndexMetaData> indexMetaDataFormat(Version version) {
if(legacyMetaData(version)) {
return indexMetaDataLegacyFormat;
} else {
return indexMetaDataFormat;
}
}
/**
* Writes snapshot index file
* <p>
* This file can be used by read-only repositories that are unable to list files in the repository
*
* @param snapshots list of snapshot ids
* @throws IOException I/O errors
*/
protected void writeSnapshotList(List<SnapshotId> snapshots) throws IOException {
final BytesReference bRef;
try(BytesStreamOutput bStream = new BytesStreamOutput()) {
try(StreamOutput stream = new OutputStreamStreamOutput(bStream)) {
XContentBuilder builder = XContentFactory.contentBuilder(XContentType.JSON, stream);
builder.startObject();
builder.startArray("snapshots");
for (SnapshotId snapshot : snapshots) {
builder.value(snapshot.getSnapshot());
}
builder.endArray();
builder.endObject();
builder.close();
}
bRef = bStream.bytes();
}
if (snapshotsBlobContainer.blobExists(SNAPSHOTS_FILE)) {
snapshotsBlobContainer.deleteBlob(SNAPSHOTS_FILE);
}
snapshotsBlobContainer.writeBlob(SNAPSHOTS_FILE, bRef);
}
/**
* Reads snapshot index file
* <p>
* This file can be used by read-only repositories that are unable to list files in the repository
*
* @return list of snapshots in the repository
* @throws IOException I/O errors
*/
protected List<SnapshotId> readSnapshotList() throws IOException {
try (InputStream blob = snapshotsBlobContainer.readBlob(SNAPSHOTS_FILE)) {
final byte[] data = ByteStreams.toByteArray(blob);
ArrayList<SnapshotId> snapshots = new ArrayList<>();
try (XContentParser parser = XContentHelper.createParser(new BytesArray(data))) {
if (parser.nextToken() == XContentParser.Token.START_OBJECT) {
if (parser.nextToken() == XContentParser.Token.FIELD_NAME) {
String currentFieldName = parser.currentName();
if ("snapshots".equals(currentFieldName)) {
if (parser.nextToken() == XContentParser.Token.START_ARRAY) {
while (parser.nextToken() != XContentParser.Token.END_ARRAY) {
snapshots.add(new SnapshotId(repositoryName, parser.text()));
}
}
}
}
}
}
return Collections.unmodifiableList(snapshots);
}
}
@Override
public void onRestorePause(long nanos) {
restoreRateLimitingTimeInNanos.inc(nanos);
}
@Override
public void onSnapshotPause(long nanos) {
snapshotRateLimitingTimeInNanos.inc(nanos);
}
@Override
public long snapshotThrottleTimeInNanos() {
return snapshotRateLimitingTimeInNanos.count();
}
@Override
public long restoreThrottleTimeInNanos() {
return restoreRateLimitingTimeInNanos.count();
}
@Override
public String startVerification() {
try {
if (readOnly()) {
// It's readonly - so there is not much we can do here to verify it
return null;
} else {
String seed = Strings.randomBase64UUID();
byte[] testBytes = Strings.toUTF8Bytes(seed);
BlobContainer testContainer = blobStore().blobContainer(basePath().add(testBlobPrefix(seed)));
String blobName = "master.dat";
testContainer.writeBlob(blobName + "-temp", new BytesArray(testBytes));
// Make sure that move is supported
testContainer.move(blobName + "-temp", blobName);
return seed;
}
} catch (IOException exp) {
throw new RepositoryVerificationException(repositoryName, "path " + basePath() + " is not accessible on master node", exp);
}
}
@Override
public void endVerification(String seed) {
if (readOnly()) {
throw new UnsupportedOperationException("shouldn't be called");
}
try {
blobStore().delete(basePath().add(testBlobPrefix(seed)));
} catch (IOException exp) {
throw new RepositoryVerificationException(repositoryName, "cannot delete test data at " + basePath(), exp);
}
}
public static String testBlobPrefix(String seed) {
return TESTS_FILE + seed;
}
@Override
public boolean readOnly() {
return readOnly;
}
}