private async Task <bool> CheckIfSnapshotIsEncrypted(string fullPath)
{
using (var zip = await GetZipArchive(fullPath))
{
foreach (var zipEntry in zip.Entries)
{
if (string.Equals(zipEntry.FullName, RestoreSettings.SettingsFileName, StringComparison.OrdinalIgnoreCase))
{
using (var entryStream = zipEntry.Open())
{
var json = _context.Read(entryStream, "read database settings");
json.BlittableValidation();
RestoreSettings restoreSettings = JsonDeserializationServer.RestoreSettings(json);
return(restoreSettings.DatabaseRecord.Encrypted);
}
}
}
}
throw new InvalidOperationException("Can't find settings file in backup archive.");
}
private static bool CheckIfSnapshotIsEncrypted(string filePath, TransactionOperationContext context)
{
using (var zip = ZipFile.Open(filePath, ZipArchiveMode.Read, System.Text.Encoding.UTF8))
{
foreach (var zipEntry in zip.Entries)
{
if (string.Equals(zipEntry.FullName, RestoreSettings.SettingsFileName, StringComparison.OrdinalIgnoreCase))
{
using (var entryStream = zipEntry.Open())
{
var json = context.Read(entryStream, "read database settings");
json.BlittableValidation();
RestoreSettings restoreSettings = JsonDeserializationServer.RestoreSettings(json);
return(restoreSettings.DatabaseRecord.Encrypted);
}
}
}
}
throw new InvalidOperationException("Can't find settings file in backup archive.");
}
protected async Task <RestoreSettings> SnapshotRestore(JsonOperationContext context, string backupPath,
Action <IOperationProgress> onProgress, RestoreResult restoreResult)
{
Debug.Assert(onProgress != null);
RestoreSettings restoreSettings = null;
var fullBackupPath = GetBackupPath(backupPath);
using (var zip = await GetZipArchiveForSnapshot(fullBackupPath))
{
foreach (var zipEntries in zip.Entries.GroupBy(x => x.FullName.Substring(0, x.FullName.Length - x.Name.Length)))
{
var directory = zipEntries.Key;
if (string.IsNullOrWhiteSpace(directory))
{
foreach (var zipEntry in zipEntries)
{
if (string.Equals(zipEntry.Name, RestoreSettings.SettingsFileName, StringComparison.OrdinalIgnoreCase))
{
using (var entryStream = zipEntry.Open())
{
var snapshotEncryptionKey = RestoreFromConfiguration.EncryptionKey != null
? Convert.FromBase64String(RestoreFromConfiguration.EncryptionKey)
: null;
using (var stream = GetInputStream(entryStream, snapshotEncryptionKey))
{
var json = context.Read(stream, "read database settings for restore");
json.BlittableValidation();
restoreSettings = JsonDeserializationServer.RestoreSettings(json);
restoreSettings.DatabaseRecord.DatabaseName = RestoreFromConfiguration.DatabaseName;
DatabaseHelper.Validate(RestoreFromConfiguration.DatabaseName, restoreSettings.DatabaseRecord, _serverStore.Configuration);
if (restoreSettings.DatabaseRecord.Encrypted && _hasEncryptionKey == false)
{
throw new ArgumentException("Database snapshot is encrypted but the encryption key is missing!");
}
if (restoreSettings.DatabaseRecord.Encrypted == false && _hasEncryptionKey)
{
throw new ArgumentException("Cannot encrypt a non encrypted snapshot backup during restore!");
}
}
}
}
}
continue;
}
var voronDataDirectory = new VoronPathSetting(RestoreFromConfiguration.DataDirectory);
var restoreDirectory = directory.StartsWith(Constants.Documents.PeriodicBackup.Folders.Documents, StringComparison.OrdinalIgnoreCase)
? voronDataDirectory
: voronDataDirectory.Combine(directory);
BackupMethods.Full.Restore(
zipEntries,
restoreDirectory,
journalDir: null,
onProgress: message =>
{
restoreResult.AddInfo(message);
restoreResult.SnapshotRestore.ReadCount++;
onProgress.Invoke(restoreResult.Progress);
},
cancellationToken: _operationCancelToken.Token);
}
}
if (restoreSettings == null)
{
throw new InvalidDataException("Cannot restore the snapshot without the settings file!");
}
return(restoreSettings);
}
public async Task <IOperationResult> Execute(Action <IOperationProgress> onProgress)
{
var databaseName = RestoreFromConfiguration.DatabaseName;
var result = new RestoreResult
{
DataDirectory = RestoreFromConfiguration.DataDirectory
};
try
{
var filesToRestore = await GetOrderedFilesToRestore();
using (_serverStore.ContextPool.AllocateOperationContext(out JsonOperationContext serverContext))
{
if (onProgress == null)
{
onProgress = _ => { }
}
;
Stopwatch sw = null;
RestoreSettings restoreSettings = null;
var firstFile = filesToRestore[0];
var extension = Path.GetExtension(firstFile);
var snapshotRestore = false;
if ((extension == Constants.Documents.PeriodicBackup.SnapshotExtension) ||
(extension == Constants.Documents.PeriodicBackup.EncryptedSnapshotExtension))
{
onProgress.Invoke(result.Progress);
snapshotRestore = true;
sw = Stopwatch.StartNew();
if (extension == Constants.Documents.PeriodicBackup.EncryptedSnapshotExtension)
{
_hasEncryptionKey = RestoreFromConfiguration.EncryptionKey != null ||
RestoreFromConfiguration.BackupEncryptionSettings?.Key != null;
}
// restore the snapshot
restoreSettings = await SnapshotRestore(serverContext, firstFile, onProgress, result);
if (restoreSettings != null && RestoreFromConfiguration.SkipIndexes)
{
// remove all indexes from the database record
restoreSettings.DatabaseRecord.AutoIndexes = null;
restoreSettings.DatabaseRecord.Indexes = null;
}
// removing the snapshot from the list of files
filesToRestore.RemoveAt(0);
}
else
{
result.SnapshotRestore.Skipped = true;
result.SnapshotRestore.Processed = true;
onProgress.Invoke(result.Progress);
}
if (restoreSettings == null)
{
restoreSettings = new RestoreSettings
{
DatabaseRecord = new DatabaseRecord(databaseName)
{
// we only have a smuggler restore
// use the encryption key to encrypt the database
Encrypted = _hasEncryptionKey
}
};
DatabaseHelper.Validate(databaseName, restoreSettings.DatabaseRecord, _serverStore.Configuration);
}
var databaseRecord = restoreSettings.DatabaseRecord;
if (databaseRecord.Settings == null)
{
databaseRecord.Settings = new Dictionary <string, string>();
}
var runInMemoryConfigurationKey = RavenConfiguration.GetKey(x => x.Core.RunInMemory);
databaseRecord.Settings.Remove(runInMemoryConfigurationKey);
if (_serverStore.Configuration.Core.RunInMemory)
{
databaseRecord.Settings[runInMemoryConfigurationKey] = "false";
}
var dataDirectoryConfigurationKey = RavenConfiguration.GetKey(x => x.Core.DataDirectory);
databaseRecord.Settings.Remove(dataDirectoryConfigurationKey); // removing because we want to restore to given location, not to serialized in backup one
if (_restoringToDefaultDataDirectory == false)
{
databaseRecord.Settings[dataDirectoryConfigurationKey] = RestoreFromConfiguration.DataDirectory;
}
if (_hasEncryptionKey)
{
// save the encryption key so we'll be able to access the database
_serverStore.PutSecretKey(RestoreFromConfiguration.EncryptionKey,
databaseName, overwrite: false);
}
var addToInitLog = new Action <string>(txt => // init log is not save in mem during RestoreBackup
{
var msg = $"[RestoreBackup] {DateTime.UtcNow} :: Database '{databaseName}' : {txt}";
if (Logger.IsInfoEnabled)
{
Logger.Info(msg);
}
});
var configuration = _serverStore
.DatabasesLandlord
.CreateDatabaseConfiguration(databaseName, ignoreDisabledDatabase: true, ignoreBeenDeleted: true, ignoreNotRelevant: true, databaseRecord);
using (var database = new DocumentDatabase(databaseName, configuration, _serverStore, addToInitLog))
{
// smuggler needs an existing document database to operate
var options = InitializeOptions.SkipLoadingDatabaseRecord;
if (snapshotRestore)
{
options |= InitializeOptions.GenerateNewDatabaseId;
}
database.Initialize(options);
databaseRecord.Topology = new DatabaseTopology();
// restoring to the current node only
databaseRecord.Topology.Members.Add(_nodeTag);
// we are currently restoring, shouldn't try to access it
databaseRecord.DatabaseState = DatabaseStateStatus.RestoreInProgress;
var(index, _) = await _serverStore.WriteDatabaseRecordAsync(databaseName, databaseRecord, null, RaftIdGenerator.NewId(), restoreSettings.DatabaseValues, isRestore : true);
await _serverStore.Cluster.WaitForIndexNotification(index);
using (database.DocumentsStorage.ContextPool.AllocateOperationContext(out DocumentsOperationContext context))
{
if (snapshotRestore)
{
await RestoreFromSmugglerFile(onProgress, database, firstFile, context);
await SmugglerRestore(database, filesToRestore, context, databaseRecord, onProgress, result);
result.SnapshotRestore.Processed = true;
var summary = database.GetDatabaseSummary();
result.Documents.ReadCount += summary.DocumentsCount;
result.Documents.Attachments.ReadCount += summary.AttachmentsCount;
result.Counters.ReadCount += summary.CounterEntriesCount;
result.RevisionDocuments.ReadCount += summary.RevisionsCount;
result.Conflicts.ReadCount += summary.ConflictsCount;
result.Indexes.ReadCount += databaseRecord.GetIndexesCount();
result.CompareExchange.ReadCount += summary.CompareExchangeCount;
result.CompareExchangeTombstones.ReadCount += summary.CompareExchangeTombstonesCount;
result.Identities.ReadCount += summary.IdentitiesCount;
result.AddInfo($"Successfully restored {result.SnapshotRestore.ReadCount} files during snapshot restore, took: {sw.ElapsedMilliseconds:#,#;;0}ms");
onProgress.Invoke(result.Progress);
}
else
{
await SmugglerRestore(database, filesToRestore, context, databaseRecord, onProgress, result);
}
DisableOngoingTasksIfNeeded(databaseRecord);
result.DatabaseRecord.Processed = true;
result.Documents.Processed = true;
result.RevisionDocuments.Processed = true;
result.Conflicts.Processed = true;
result.Indexes.Processed = true;
result.Counters.Processed = true;
result.Identities.Processed = true;
result.CompareExchange.Processed = true;
result.Subscriptions.Processed = true;
onProgress.Invoke(result.Progress);
}
}
// after the db for restore is done, we can safely set the db state to normal and write the DatabaseRecord
databaseRecord.DatabaseState = DatabaseStateStatus.Normal;
var(updateIndex, _) = await _serverStore.WriteDatabaseRecordAsync(databaseName, databaseRecord, null, RaftIdGenerator.DontCareId, isRestore : true);
await _serverStore.Cluster.WaitForIndexNotification(updateIndex);
if (databaseRecord.Topology.RelevantFor(_serverStore.NodeTag))
{
// we need to wait for the database record change to be propagated properly
var db = await _serverStore.DatabasesLandlord.TryGetOrCreateResourceStore(databaseName);
await db.RachisLogIndexNotifications.WaitForIndexNotification(updateIndex, _operationCancelToken.Token);
}
return(result);
}
}
catch (Exception e)
{
if (Logger.IsOperationsEnabled)
{
Logger.Operations("Failed to restore database", e);
}
var alert = AlertRaised.Create(
RestoreFromConfiguration.DatabaseName,
"Failed to restore database",
$"Could not restore database named {RestoreFromConfiguration.DatabaseName}",
AlertType.RestoreError,
NotificationSeverity.Error,
details: new ExceptionDetails(e));
_serverStore.NotificationCenter.Add(alert);
using (_serverStore.ContextPool.AllocateOperationContext(out TransactionOperationContext context))
{
bool databaseExists;
using (context.OpenReadTransaction())
{
databaseExists = _serverStore.Cluster.DatabaseExists(context, RestoreFromConfiguration.DatabaseName);
}
if (databaseExists == false)
{
// delete any files that we already created during the restore
IOExtensions.DeleteDirectory(RestoreFromConfiguration.DataDirectory);
}
else
{
var deleteResult = await _serverStore.DeleteDatabaseAsync(RestoreFromConfiguration.DatabaseName, true, new[] { _serverStore.NodeTag }, RaftIdGenerator.DontCareId);
await _serverStore.Cluster.WaitForIndexNotification(deleteResult.Index);
}
}
result.AddError($"Error occurred during restore of database {databaseName}. Exception: {e.Message}");
onProgress.Invoke(result.Progress);
throw;
}
finally
{
Dispose();
}
}
public async Task <IOperationResult> Execute(Action <IOperationProgress> onProgress)
{
var databaseName = _restoreConfiguration.DatabaseName;
var result = new RestoreResult
{
DataDirectory = _restoreConfiguration.DataDirectory
};
try
{
if (onProgress == null)
{
onProgress = _ => { }
}
;
Stopwatch sw = null;
RestoreSettings restoreSettings = null;
var firstFile = _filesToRestore[0];
var lastFile = _filesToRestore.Last();
var extension = Path.GetExtension(firstFile);
var snapshotRestore = false;
if (extension == Constants.Documents.PeriodicBackup.SnapshotExtension)
{
onProgress.Invoke(result.Progress);
snapshotRestore = true;
sw = Stopwatch.StartNew();
// restore the snapshot
restoreSettings = SnapshotRestore(firstFile,
_restoreConfiguration.DataDirectory,
onProgress,
result);
// removing the snapshot from the list of files
_filesToRestore.RemoveAt(0);
}
else
{
result.SnapshotRestore.Skipped = true;
result.SnapshotRestore.Processed = true;
onProgress.Invoke(result.Progress);
}
if (restoreSettings == null)
{
restoreSettings = new RestoreSettings
{
DatabaseRecord = new DatabaseRecord(databaseName)
{
// we only have a smuggler restore
// use the encryption key to encrypt the database
Encrypted = _hasEncryptionKey
}
};
DatabaseHelper.Validate(databaseName, restoreSettings.DatabaseRecord, _serverStore.Configuration);
}
var databaseRecord = restoreSettings.DatabaseRecord;
if (databaseRecord.Settings == null)
{
databaseRecord.Settings = new Dictionary <string, string>();
}
var runInMemoryConfigurationKey = RavenConfiguration.GetKey(x => x.Core.RunInMemory);
databaseRecord.Settings.Remove(runInMemoryConfigurationKey);
if (_serverStore.Configuration.Core.RunInMemory)
{
databaseRecord.Settings[runInMemoryConfigurationKey] = "false";
}
var dataDirectoryConfigurationKey = RavenConfiguration.GetKey(x => x.Core.DataDirectory);
databaseRecord.Settings.Remove(dataDirectoryConfigurationKey); // removing because we want to restore to given location, not to serialized in backup one
if (_restoringToDefaultDataDirectory == false)
{
databaseRecord.Settings[dataDirectoryConfigurationKey] = _restoreConfiguration.DataDirectory;
}
if (_hasEncryptionKey)
{
// save the encryption key so we'll be able to access the database
_serverStore.PutSecretKey(_restoreConfiguration.EncryptionKey,
databaseName, overwrite: false);
}
var addToInitLog = new Action <string>(txt => // init log is not save in mem during RestoreBackup
{
var msg = $"[RestoreBackup] {DateTime.UtcNow} :: Database '{databaseName}' : {txt}";
if (Logger.IsInfoEnabled)
{
Logger.Info(msg);
}
});
using (var database = new DocumentDatabase(databaseName,
new RavenConfiguration(databaseName, ResourceType.Database)
{
Core =
{
DataDirectory = new PathSetting(_restoreConfiguration.DataDirectory),
RunInMemory = false
}
}, _serverStore, addToInitLog))
{
// smuggler needs an existing document database to operate
var options = InitializeOptions.SkipLoadingDatabaseRecord;
if (snapshotRestore)
{
options |= InitializeOptions.GenerateNewDatabaseId;
}
database.Initialize(options);
if (snapshotRestore)
{
result.SnapshotRestore.Processed = true;
var summary = database.GetDatabaseSummary();
result.Documents.ReadCount += summary.DocumentsCount;
result.Documents.Attachments.ReadCount += summary.AttachmentsCount;
result.Counters.ReadCount += summary.CountersCount;
result.RevisionDocuments.ReadCount += summary.RevisionsCount;
result.Conflicts.ReadCount += summary.ConflictsCount;
result.Indexes.ReadCount += databaseRecord.GetIndexesCount();
result.AddInfo($"Successfully restored {result.SnapshotRestore.ReadCount} " +
$"files during snapshot restore, took: {sw.ElapsedMilliseconds:#,#;;0}ms");
onProgress.Invoke(result.Progress);
}
using (database.DocumentsStorage.ContextPool.AllocateOperationContext(out DocumentsOperationContext context))
{
SmugglerRestore(_restoreConfiguration.BackupLocation, database, context, databaseRecord, onProgress, result);
result.DatabaseRecord.Processed = true;
result.Documents.Processed = true;
result.RevisionDocuments.Processed = true;
result.Conflicts.Processed = true;
result.Indexes.Processed = true;
result.Counters.Processed = true;
onProgress.Invoke(result.Progress);
databaseRecord.Topology = new DatabaseTopology();
// restoring to the current node only
databaseRecord.Topology.Members.Add(_nodeTag);
databaseRecord.Disabled = true; // we are currently restoring, shouldn't try to access it
_serverStore.EnsureNotPassive();
DisableOngoingTasksIfNeeded(databaseRecord);
var(index, _) = await _serverStore.WriteDatabaseRecordAsync(databaseName, databaseRecord, null, restoreSettings.DatabaseValues, isRestore : true);
await _serverStore.Cluster.WaitForIndexNotification(index);
// restore identities & cmpXchg values
RestoreFromLastFile(onProgress, database, lastFile, context, result);
}
}
// after the db for restore is done, we can safely set the db status to active
databaseRecord = _serverStore.LoadDatabaseRecord(databaseName, out _);
databaseRecord.Disabled = false;
var(updateIndex, _) = await _serverStore.WriteDatabaseRecordAsync(databaseName, databaseRecord, null);
await _serverStore.Cluster.WaitForIndexNotification(updateIndex);
return(result);
}
catch (Exception e)
{
if (Logger.IsOperationsEnabled)
{
Logger.Operations("Failed to restore database", e);
}
var alert = AlertRaised.Create(
_restoreConfiguration.DatabaseName,
"Failed to restore database",
$"Could not restore database named {_restoreConfiguration.DatabaseName}",
AlertType.RestoreError,
NotificationSeverity.Error,
details: new ExceptionDetails(e));
_serverStore.NotificationCenter.Add(alert);
if (_serverStore.LoadDatabaseRecord(_restoreConfiguration.DatabaseName, out var _) == null)
{
// delete any files that we already created during the restore
IOExtensions.DeleteDirectory(_restoreConfiguration.DataDirectory);
}
else
{
var deleteResult = await _serverStore.DeleteDatabaseAsync(_restoreConfiguration.DatabaseName, true, new[] { _serverStore.NodeTag });
await _serverStore.Cluster.WaitForIndexNotification(deleteResult.Index);
}
result.AddError($"Error occurred during restore of database {databaseName}. Exception: {e.Message}");
onProgress.Invoke(result.Progress);
throw;
}
finally
{
_operationCancelToken.Dispose();
}
}
private RestoreSettings SnapshotRestore(
string backupPath,
string dataDirectory,
Action <IOperationProgress> onProgress,
RestoreResult restoreResult)
{
Debug.Assert(onProgress != null);
RestoreSettings restoreSettings = null;
var voronBackupPath = new VoronPathSetting(backupPath);
var voronDataDirectory = new VoronPathSetting(dataDirectory);
using (var zip = ZipFile.Open(voronBackupPath.FullPath, ZipArchiveMode.Read, System.Text.Encoding.UTF8))
{
foreach (var zipEntries in zip.Entries.GroupBy(x => x.FullName.Substring(0, x.FullName.Length - x.Name.Length)))
{
var directory = zipEntries.Key;
if (string.IsNullOrWhiteSpace(directory))
{
foreach (var zipEntry in zipEntries)
{
if (string.Equals(zipEntry.Name, RestoreSettings.SettingsFileName, StringComparison.OrdinalIgnoreCase))
{
using (var entryStream = zipEntry.Open())
using (_serverStore.ContextPool.AllocateOperationContext(out TransactionOperationContext context))
{
var json = context.Read(entryStream, "read database settings for restore");
json.BlittableValidation();
restoreSettings = JsonDeserializationServer.RestoreSettings(json);
restoreSettings.DatabaseRecord.DatabaseName = _restoreConfiguration.DatabaseName;
DatabaseHelper.Validate(_restoreConfiguration.DatabaseName, restoreSettings.DatabaseRecord);
if (restoreSettings.DatabaseRecord.Encrypted && _hasEncryptionKey == false)
{
throw new ArgumentException("Database snapshot is encrypted but the encryption key is missing!");
}
if (restoreSettings.DatabaseRecord.Encrypted == false && _hasEncryptionKey)
{
throw new ArgumentException("Cannot encrypt a non encrypted snapshot backup during restore!");
}
}
}
}
continue;
}
var restoreDirectory = directory.StartsWith(Constants.Documents.PeriodicBackup.Folders.Documents, StringComparison.OrdinalIgnoreCase)
? voronDataDirectory
: voronDataDirectory.Combine(directory);
BackupMethods.Full.Restore(
zipEntries,
restoreDirectory,
journalDir: null,
onProgress: message =>
{
restoreResult.AddInfo(message);
restoreResult.SnapshotRestore.ReadCount++;
onProgress.Invoke(restoreResult.Progress);
},
cancellationToken: _operationCancelToken.Token);
}
}
if (restoreSettings == null)
{
throw new InvalidDataException("Cannot restore the snapshot without the settings file!");
}
return(restoreSettings);
}
protected async Task <RestoreSettings> SnapshotRestore(JsonOperationContext context, string backupPath,
Action <IOperationProgress> onProgress, RestoreResult restoreResult)
{
Debug.Assert(onProgress != null);
RestoreSettings restoreSettings = null;
var fullBackupPath = GetBackupPath(backupPath);
using (var zip = await GetZipArchiveForSnapshot(fullBackupPath))
{
var restorePath = new VoronPathSetting(RestoreFromConfiguration.DataDirectory);
if (Directory.Exists(restorePath.FullPath) == false)
{
Directory.CreateDirectory(restorePath.FullPath);
}
// validate free space
var snapshotSize = zip.Entries.Sum(entry => entry.Length);
BackupHelper.AssertFreeSpaceForSnapshot(restorePath.FullPath, snapshotSize, "restore a backup", Logger);
foreach (var zipEntries in zip.Entries.GroupBy(x => x.FullName.Substring(0, x.FullName.Length - x.Name.Length)))
{
var directory = zipEntries.Key;
if (string.IsNullOrWhiteSpace(directory))
{
foreach (var zipEntry in zipEntries)
{
if (string.Equals(zipEntry.Name, RestoreSettings.SettingsFileName, StringComparison.OrdinalIgnoreCase))
{
await using (var entryStream = zipEntry.Open())
{
var snapshotEncryptionKey = RestoreFromConfiguration.EncryptionKey != null
? Convert.FromBase64String(RestoreFromConfiguration.EncryptionKey)
: null;
await using (var stream = GetInputStream(entryStream, snapshotEncryptionKey))
{
var json = await context.ReadForMemoryAsync(stream, "read database settings for restore");
json.BlittableValidation();
restoreSettings = JsonDeserializationServer.RestoreSettings(json);
restoreSettings.DatabaseRecord.DatabaseName = RestoreFromConfiguration.DatabaseName;
DatabaseHelper.Validate(RestoreFromConfiguration.DatabaseName, restoreSettings.DatabaseRecord, _serverStore.Configuration);
if (restoreSettings.DatabaseRecord.Encrypted && _hasEncryptionKey == false)
{
throw new ArgumentException("Database snapshot is encrypted but the encryption key is missing!");
}
if (restoreSettings.DatabaseRecord.Encrypted == false && _hasEncryptionKey)
{
throw new ArgumentException("Cannot encrypt a non encrypted snapshot backup during restore!");
}
}
}
}
}
continue;
}
var restoreDirectory = directory.StartsWith(Constants.Documents.PeriodicBackup.Folders.Documents, StringComparison.OrdinalIgnoreCase)
? restorePath
: restorePath.Combine(directory);
var isSubDirectory = PathUtil.IsSubDirectory(restoreDirectory.FullPath, restorePath.FullPath);
if (isSubDirectory == false)
{
var extensions = zipEntries
.Select(x => Path.GetExtension(x.Name))
.Distinct()
.ToArray();
if (extensions.Length != 1 || string.Equals(extensions[0], TableValueCompressor.CompressionRecoveryExtension, StringComparison.OrdinalIgnoreCase) == false)
{
throw new InvalidOperationException($"Encountered invalid directory '{directory}' in snapshot file with following file extensions: {string.Join(", ", extensions)}");
}
// this enables backward compatibility of snapshot backups with compression recovery files before fix was made in RavenDB-17173
// the underlying issue was that we were putting full path when compression recovery files were backed up using snapshot
// because of that the end restore directory was not a sub-directory of a restore path
// which could result in a file already exists exception
// since restoring of compression recovery files is not mandatory then it is safe to skip them
continue;
}
BackupMethods.Full.Restore(
zipEntries,
restoreDirectory,
journalDir: null,
onProgress: message =>
{
restoreResult.AddInfo(message);
restoreResult.SnapshotRestore.ReadCount++;
onProgress.Invoke(restoreResult.Progress);
},
cancellationToken: _operationCancelToken.Token);
}
}
if (restoreSettings == null)
{
throw new InvalidDataException("Cannot restore the snapshot without the settings file!");
}
return(restoreSettings);
}
