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5.97 kB
| // _ _ | |
| // __ _____ __ ___ ___ __ _| |_ ___ | |
| // \ \ /\ / / _ \/ _` \ \ / / |/ _` | __/ _ \ | |
| // \ V V / __/ (_| |\ V /| | (_| | || __/ | |
| // \_/\_/ \___|\__,_| \_/ |_|\__,_|\__\___| | |
| // | |
| // Copyright © 2016 - 2025 Weaviate B.V. All rights reserved. | |
| // | |
| // CONTACT: hello@weaviate.io | |
| // | |
| package backup | |
| import ( | |
| "context" | |
| "errors" | |
| "fmt" | |
| "time" | |
| "github.com/sirupsen/logrus" | |
| "github.com/weaviate/weaviate/cluster/fsm" | |
| "github.com/weaviate/weaviate/entities/backup" | |
| enterrors "github.com/weaviate/weaviate/entities/errors" | |
| "github.com/weaviate/weaviate/entities/models" | |
| "github.com/weaviate/weaviate/usecases/config" | |
| ) | |
| type backupper struct { | |
| node string | |
| logger logrus.FieldLogger | |
| sourcer Sourcer | |
| rbacSourcer fsm.Snapshotter | |
| dynUserSourcer fsm.Snapshotter | |
| backends BackupBackendProvider | |
| // shardCoordinationChan is sync and coordinate operations | |
| shardSyncChan | |
| } | |
| func newBackupper(node string, logger logrus.FieldLogger, sourcer Sourcer, rbacSourcer fsm.Snapshotter, dynUserSourcer fsm.Snapshotter, backends BackupBackendProvider, | |
| ) *backupper { | |
| return &backupper{ | |
| node: node, | |
| logger: logger, | |
| sourcer: sourcer, | |
| rbacSourcer: rbacSourcer, | |
| dynUserSourcer: dynUserSourcer, | |
| backends: backends, | |
| shardSyncChan: shardSyncChan{coordChan: make(chan interface{}, 5)}, | |
| } | |
| } | |
| // Backup is called by the User | |
| func (b *backupper) Backup(ctx context.Context, | |
| store nodeStore, id string, classes []string, overrideBucket, overridePath string, | |
| ) (*backup.CreateMeta, error) { | |
| // make sure there is no active backup | |
| req := Request{ | |
| Method: OpCreate, | |
| ID: id, | |
| Classes: classes, | |
| Bucket: overrideBucket, | |
| Path: overridePath, | |
| } | |
| if _, err := b.backup(store, &req); err != nil { | |
| return nil, backup.NewErrUnprocessable(err) | |
| } | |
| return &backup.CreateMeta{ | |
| Path: store.HomeDir(overrideBucket, overridePath), | |
| Status: backup.Started, | |
| }, nil | |
| } | |
| // Status returns status of a backup | |
| // If the backup is still active the status is immediately returned | |
| // If not it fetches the metadata file to get the status | |
| func (b *backupper) Status(ctx context.Context, backend, bakID string, | |
| ) (*models.BackupCreateStatusResponse, error) { | |
| st, err := b.OnStatus(ctx, &StatusRequest{OpCreate, bakID, backend, "", ""}) // retrieved from store | |
| if err != nil { | |
| if errors.Is(err, errMetaNotFound) { | |
| err = backup.NewErrNotFound(err) | |
| } else { | |
| err = backup.NewErrUnprocessable(err) | |
| } | |
| return nil, err | |
| } | |
| // check if backup is still active | |
| status := string(st.Status) | |
| return &models.BackupCreateStatusResponse{ | |
| ID: bakID, | |
| Path: st.Path, | |
| Status: &status, | |
| Backend: backend, | |
| }, nil | |
| } | |
| func (b *backupper) OnStatus(ctx context.Context, req *StatusRequest) (reqState, error) { | |
| // check if backup is still active | |
| st := b.lastOp.get() | |
| if st.ID == req.ID { | |
| return st, nil // st contains path, which is the homedir, a combination of bucket and path | |
| } | |
| // The backup might have been already created. | |
| store, err := nodeBackend(b.node, b.backends, req.Backend, req.ID, req.Bucket, req.Path) | |
| if err != nil { | |
| return reqState{}, fmt.Errorf("no backup provider %q, did you enable the right module?", req.Backend) | |
| } | |
| meta, err := store.Meta(ctx, req.ID, store.bucket, store.path, false) | |
| if err != nil { | |
| path := fmt.Sprintf("%s/%s", req.ID, BackupFile) | |
| return reqState{}, fmt.Errorf("cannot get status while backing up: %w: %q: %w", errMetaNotFound, path, err) | |
| } | |
| if meta.Error != "" { | |
| return reqState{}, errors.New(meta.Error) | |
| } | |
| return reqState{ | |
| Starttime: meta.StartedAt, | |
| ID: req.ID, | |
| Path: store.HomeDir(store.bucket, store.path), | |
| Status: backup.Status(meta.Status), | |
| }, nil | |
| } | |
| // backup checks if the node is ready to back up (can commit phase) | |
| // | |
| // Moreover it starts a goroutine in the background which waits for the | |
| // next instruction from the coordinator (second phase). | |
| // It will start the backup as soon as it receives an ack, or abort otherwise | |
| func (b *backupper) backup(store nodeStore, req *Request) (CanCommitResponse, error) { | |
| id := req.ID | |
| expiration := req.Duration | |
| if expiration > _TimeoutShardCommit { | |
| expiration = _TimeoutShardCommit | |
| } | |
| ret := CanCommitResponse{ | |
| Method: OpCreate, | |
| ID: req.ID, | |
| Timeout: expiration, | |
| } | |
| // make sure there is no active backup | |
| if prevID := b.lastOp.renew(id, store.HomeDir(req.Bucket, req.Path), req.Bucket, req.Path); prevID != "" { | |
| return ret, fmt.Errorf("backup %s already in progress", prevID) | |
| } | |
| b.waitingForCoordinatorToCommit.Store(true) // is set to false by wait() | |
| // waits for ack from coordinator in order to processed with the backup | |
| f := func() { | |
| defer b.lastOp.reset() | |
| if err := b.waitForCoordinator(expiration, id); err != nil { | |
| b.logger.WithField("action", "create_backup"). | |
| Error(err) | |
| b.lastAsyncError = err | |
| return | |
| } | |
| provider := newUploader(b.sourcer, b.rbacSourcer, b.dynUserSourcer, store, req.ID, b.lastOp.set, b.logger). | |
| withCompression(newZipConfig(req.Compression)) | |
| result := backup.BackupDescriptor{ | |
| StartedAt: time.Now().UTC(), | |
| ID: id, | |
| Classes: make([]backup.ClassDescriptor, 0, len(req.Classes)), | |
| Version: Version, | |
| ServerVersion: config.ServerVersion, | |
| } | |
| // the coordinator might want to abort the backup | |
| done := make(chan struct{}) | |
| ctx := b.withCancellation(context.Background(), id, done, b.logger) | |
| defer close(done) | |
| logFields := logrus.Fields{"action": "create_backup", "backup_id": req.ID, "override_bucket": req.Bucket, "override_path": req.Path} | |
| if err := provider.all(ctx, req.Classes, &result, req.Bucket, req.Path); err != nil { | |
| b.logger.WithFields(logFields).Error(err) | |
| b.lastAsyncError = err | |
| } else { | |
| b.logger.WithFields(logFields).Info("backup completed successfully") | |
| } | |
| result.CompletedAt = time.Now().UTC() | |
| } | |
| enterrors.GoWrapper(f, b.logger) | |
| return ret, nil | |
| } | |