Example #1
0
        public void WriteFileset(Volumes.FilesetVolumeWriter filesetvolume, System.Data.IDbTransaction transaction, long filesetId)
        {
            using (var cmd = m_connection.CreateCommand())
            {
                cmd.Transaction = transaction;
                cmd.CommandText = @"SELECT ""B"".""BlocksetID"", ""B"".""ID"", ""B"".""Path"", ""D"".""Length"", ""D"".""FullHash"", ""A"".""Scantime"" FROM ""FilesetEntry"" A, ""File"" B, ""Metadataset"" C, ""Blockset"" D WHERE ""A"".""FileID"" = ""B"".""ID"" AND ""B"".""MetadataID"" = ""C"".""ID"" AND ""C"".""BlocksetID"" = ""D"".""ID"" AND (""B"".""BlocksetID"" = ? OR ""B"".""BlocksetID"" = ?) AND ""A"".""FilesetID"" = ? ";
                cmd.AddParameter(FOLDER_BLOCKSET_ID);
                cmd.AddParameter(SYMLINK_BLOCKSET_ID);
                cmd.AddParameter(filesetId);

                using (var rd = cmd.ExecuteReader())
                    while (rd.Read())
                    {
                        var blocksetID = Convert.ToInt64(rd.GetValue(0));
                        var path       = rd.GetValue(2).ToString();
                        var metalength = Convert.ToInt64(rd.GetValue(3));
                        var metahash   = rd.GetValue(4).ToString();

                        if (blocksetID == FOLDER_BLOCKSET_ID)
                        {
                            filesetvolume.AddDirectory(path, metahash, metalength);
                        }
                        else if (blocksetID == SYMLINK_BLOCKSET_ID)
                        {
                            filesetvolume.AddSymlink(path, metahash, metalength);
                        }
                    }

                cmd.CommandText = @"SELECT ""F"".""Path"", ""F"".""Scantime"", ""F"".""Filelength"", ""F"".""Filehash"", ""F"".""Metahash"", ""F"".""Metalength"", ""G"".""Hash"" FROM (SELECT ""A"".""Path"" AS ""Path"", ""D"".""Scantime"" AS ""Scantime"", ""B"".""Length"" AS ""Filelength"", ""B"".""FullHash"" AS ""Filehash"", ""E"".""FullHash"" AS ""Metahash"", ""E"".""Length"" AS ""Metalength"", ""A"".""BlocksetID"" AS ""BlocksetID"" FROM ""File"" A, ""Blockset"" B, ""Metadataset"" C, ""FilesetEntry"" D, ""Blockset"" E WHERE ""A"".""ID"" = ""D"".""FileID"" AND ""D"".""FilesetID"" = ? AND ""A"".""BlocksetID"" = ""B"".""ID"" AND ""A"".""MetadataID"" = ""C"".""ID"" AND ""E"".""ID"" = ""C"".""BlocksetID"") F LEFT OUTER JOIN ""BlocklistHash"" G ON ""G"".""BlocksetID"" = ""F"".""BlocksetID"" ORDER BY ""F"".""Path"", ""G"".""Index"" ";
                cmd.Parameters.Clear();
                cmd.AddParameter(filesetId);

                using (var rd = cmd.ExecuteReader())
                    if (rd.Read())
                    {
                        var more = false;
                        do
                        {
                            var path     = rd.GetValue(0).ToString();
                            var filehash = rd.GetValue(3).ToString();
                            var size     = Convert.ToInt64(rd.GetValue(2));
                            var scantime = ParseFromEpochSeconds(Convert.ToInt64(rd.GetValue(1)));
                            var metahash = rd.GetValue(4).ToString();
                            var metasize = Convert.ToInt64(rd.GetValue(5));
                            var p        = rd.GetValue(6);
                            var blrd     = (p == null || p == DBNull.Value) ? null : new BlocklistHashEnumerable(rd);

                            filesetvolume.AddFile(path, filehash, size, scantime, metahash, metasize, blrd);
                            if (blrd == null)
                            {
                                more = rd.Read();
                            }
                            else
                            {
                                more = blrd.MoreData;
                            }
                        } while (more);
                    }
            }
        }
 public void WriteFileset(Volumes.FilesetVolumeWriter filesetvolume, System.Data.IDbTransaction transaction)
 {
     WriteFileset(filesetvolume, transaction, m_filesetId);
 }
Example #3
0
        private void DoRun(Database.LocalPurgeDatabase db, Library.Utility.IFilter filter, Action <System.Data.IDbCommand, long, string> filtercommand, float pgoffset, float pgspan)
        {
            m_result.OperationProgressUpdater.UpdatePhase(OperationPhase.PurgeFiles_Begin);
            Logging.Log.WriteInformationMessage(LOGTAG, "StartingPurge", "Starting purge operation");

            var doCompactStep = !m_options.NoAutoCompact && filtercommand == null;

            using (var backend = new BackendManager(m_backendurl, m_options, m_result.BackendWriter, db))
            {
                if (db.PartiallyRecreated)
                {
                    throw new UserInformationException("The purge command does not work on partially recreated databases", "PurgeNotAllowedOnPartialDatabase");
                }

                if (db.RepairInProgress && filtercommand == null)
                {
                    throw new UserInformationException(string.Format("The purge command does not work on an incomplete database, try the {0} operation.", "purge-broken-files"), "PurgeNotAllowedOnIncompleteDatabase");
                }

                var versions = db.GetFilesetIDs(m_options.Time, m_options.Version).OrderByDescending(x => x).ToArray();
                if (versions.Length <= 0)
                {
                    throw new UserInformationException("No filesets matched the supplied time or versions", "NoFilesetFoundForTimeOrVersion");
                }

                var orphans = db.CountOrphanFiles(null);
                if (orphans != 0)
                {
                    throw new UserInformationException(string.Format("Unable to start the purge process as there are {0} orphan file(s)", orphans), "CannotPurgeWithOrphans");
                }

                Utility.UpdateOptionsFromDb(db, m_options);
                Utility.VerifyParameters(db, m_options);

                if (filtercommand == null)
                {
                    db.VerifyConsistency(m_options.Blocksize, m_options.BlockhashSize, false, null);

                    if (m_options.NoBackendverification)
                    {
                        FilelistProcessor.VerifyLocalList(backend, db);
                    }
                    else
                    {
                        FilelistProcessor.VerifyRemoteList(backend, m_options, db, m_result.BackendWriter, null);
                    }
                }

                var filesets = db.FilesetTimes.OrderByDescending(x => x.Value).ToArray();

                var versionprogress = ((doCompactStep ? 0.75f : 1.0f) / versions.Length) * pgspan;
                var currentprogress = pgoffset;
                var progress        = 0;

                m_result.OperationProgressUpdater.UpdatePhase(OperationPhase.PurgeFiles_Process);
                m_result.OperationProgressUpdater.UpdateProgress(currentprogress);

                // Reverse makes sure we re-write the old versions first
                foreach (var versionid in versions.Reverse())
                {
                    progress++;
                    Logging.Log.WriteVerboseMessage(LOGTAG, "ProcessingFilelistVolumes", "Processing filelist volume {0} of {1}", progress, versions.Length);

                    using (var tr = db.BeginTransaction())
                    {
                        var ix = -1;
                        for (var i = 0; i < filesets.Length; i++)
                        {
                            if (filesets[i].Key == versionid)
                            {
                                ix = i;
                                break;
                            }
                        }

                        if (ix < 0)
                        {
                            throw new InvalidProgramException(string.Format("Fileset was reported with id {0}, but could not be found?", versionid));
                        }

                        var secs = 0;
                        while (secs < 60)
                        {
                            secs++;
                            var tfn = Volumes.VolumeBase.GenerateFilename(RemoteVolumeType.Files, m_options, null, filesets[ix].Value.AddSeconds(secs));
                            if (db.GetRemoteVolumeID(tfn, tr) < 0)
                            {
                                break;
                            }
                        }

                        var tsOriginal = filesets[ix].Value;
                        var ts         = tsOriginal.AddSeconds(secs);

                        var prevfilename = db.GetRemoteVolumeNameForFileset(filesets[ix].Key, tr);

                        if (secs >= 60)
                        {
                            throw new Exception(string.Format("Unable to create a new fileset for {0} because the resulting timestamp {1} is more than 60 seconds away", prevfilename, ts));
                        }

                        if (ix != 0 && filesets[ix - 1].Value <= ts)
                        {
                            throw new Exception(string.Format("Unable to create a new fileset for {0} because the resulting timestamp {1} is larger than the next timestamp {2}", prevfilename, ts, filesets[ix - 1].Value));
                        }

                        using (var tempset = db.CreateTemporaryFileset(versionid, tr))
                        {
                            if (filtercommand == null)
                            {
                                tempset.ApplyFilter(filter);
                            }
                            else
                            {
                                tempset.ApplyFilter(filtercommand);
                            }

                            if (tempset.RemovedFileCount == 0)
                            {
                                Logging.Log.WriteInformationMessage(LOGTAG, "NotWritingNewFileset", "Not writing a new fileset for {0} as it was not changed", prevfilename);
                                currentprogress += versionprogress;
                                tr.Rollback();
                                continue;
                            }
                            else
                            {
                                using (var tf = new Library.Utility.TempFile())
                                    using (var vol = new Volumes.FilesetVolumeWriter(m_options, ts))
                                    {
                                        var isOriginalFilesetFullBackup = db.IsFilesetFullBackup(tsOriginal);
                                        var newids = tempset.ConvertToPermanentFileset(vol.RemoteFilename, ts, isOriginalFilesetFullBackup);
                                        vol.VolumeID = newids.Item1;
                                        vol.CreateFilesetFile(isOriginalFilesetFullBackup);

                                        Logging.Log.WriteInformationMessage(LOGTAG, "ReplacingFileset", "Replacing fileset {0} with {1} which has with {2} fewer file(s) ({3} reduction)", prevfilename, vol.RemoteFilename, tempset.RemovedFileCount, Library.Utility.Utility.FormatSizeString(tempset.RemovedFileSize));

                                        db.WriteFileset(vol, newids.Item2, tr);

                                        m_result.RemovedFileSize  += tempset.RemovedFileSize;
                                        m_result.RemovedFileCount += tempset.RemovedFileCount;
                                        m_result.RewrittenFileLists++;

                                        currentprogress += (versionprogress / 2);
                                        m_result.OperationProgressUpdater.UpdateProgress(currentprogress);

                                        if (m_options.Dryrun || m_options.FullResult)
                                        {
                                            foreach (var fe in tempset.ListAllDeletedFiles())
                                            {
                                                var msg = string.Format("  Purging file {0} ({1})", fe.Key, Library.Utility.Utility.FormatSizeString(fe.Value));

                                                Logging.Log.WriteProfilingMessage(LOGTAG, "PurgeFile", msg);
                                                Logging.Log.WriteVerboseMessage(LOGTAG, "PurgeFile", msg);

                                                if (m_options.Dryrun)
                                                {
                                                    Logging.Log.WriteDryrunMessage(LOGTAG, "WouldPurgeFile", msg);
                                                }
                                            }

                                            if (m_options.Dryrun)
                                            {
                                                Logging.Log.WriteDryrunMessage(LOGTAG, "WouldWriteRemoteFiles", "Would write files to remote storage");
                                            }

                                            Logging.Log.WriteVerboseMessage(LOGTAG, "WritingRemoteFiles", "Writing files to remote storage");
                                        }

                                        if (m_options.Dryrun)
                                        {
                                            Logging.Log.WriteDryrunMessage(LOGTAG, "WouldUploadAndDelete", "Would upload file {0} ({1}) and delete file {2}, removing {3} files", vol.RemoteFilename, Library.Utility.Utility.FormatSizeString(vol.Filesize), prevfilename, tempset.RemovedFileCount);
                                            tr.Rollback();
                                        }
                                        else
                                        {
                                            var lst = db.DropFilesetsFromTable(new[] { filesets[ix].Value }, tr).ToArray();
                                            foreach (var f in lst)
                                            {
                                                db.UpdateRemoteVolume(f.Key, RemoteVolumeState.Deleting, f.Value, null, tr);
                                            }

                                            tr.Commit();
                                            backend.Put(vol, synchronous: true);
                                            backend.Delete(prevfilename, -1, true);
                                            backend.FlushDbMessages();
                                        }
                                    }
                            }
                        }
                    }

                    currentprogress += (versionprogress / 2);
                    m_result.OperationProgressUpdater.UpdateProgress(currentprogress);
                }


                if (doCompactStep)
                {
                    if (m_result.RewrittenFileLists == 0)
                    {
                        Logging.Log.WriteInformationMessage(LOGTAG, "SkippingCompacting", "Skipping compacting as no new volumes were written");
                    }
                    else
                    {
                        m_result.OperationProgressUpdater.UpdateProgress(pgoffset + (0.75f * pgspan));
                        m_result.OperationProgressUpdater.UpdatePhase(OperationPhase.PurgeFiles_Compact);
                        m_result.CompactResults = new CompactResults(m_result);
                        using (var cdb = new Database.LocalDeleteDatabase(db))
                        {
                            var tr = cdb.BeginTransaction();
                            try
                            {
                                new CompactHandler(backend.BackendUrl, m_options, (CompactResults)m_result.CompactResults).DoCompact(cdb, true, ref tr, backend);
                            }
                            catch
                            {
                                try { tr.Rollback(); }
                                catch { }
                            }
                            finally
                            {
                                try { tr.Commit(); }
                                catch { }
                            }
                        }
                    }

                    m_result.OperationProgressUpdater.UpdateProgress(pgoffset + pgspan);
                    m_result.OperationProgressUpdater.UpdatePhase(OperationPhase.PurgeFiles_Complete);
                }

                backend.WaitForComplete(db, null);
            }
        }