Ejemplo n.º 1
0
func (m *requestHandlerContext) makeCreateIndexRequest(defn common.IndexDefn, host string) bool {

	id, err := common.NewIndexDefnId()
	if err != nil {
		logging.Debugf("requestHandler.makeCreateIndexRequest(): fail to generate index definition id %v", err)
		return false
	}
	defn.DefnId = id

	// deferred build for restore
	defn.Deferred = true

	req := IndexRequest{Version: uint64(1), Type: CREATE, Index: defn}
	body, err := json.Marshal(&req)
	if err != nil {
		logging.Debugf("requestHandler.makeCreateIndexRequest(): cannot marshall create index request %v", err)
		return false
	}

	bodybuf := bytes.NewBuffer(body)

	resp, err := postWithAuth(host+"/createIndex", "application/json", bodybuf)
	if err != nil {
		logging.Debugf("requestHandler.makeCreateIndexRequest(): create index request fails %v", err)
		return false
	}

	response := new(IndexResponse)
	status := convertResponse(resp, response)
	if status == RESP_ERROR || response.Code == RESP_ERROR {
		logging.Debugf("requestHandler.makeCreateIndexRequest(): create index request fails")
		return false
	}

	return true
}
Ejemplo n.º 2
0
func (m *LifecycleMgr) CreateIndex(defn *common.IndexDefn) error {

	if !defn.Deferred && !m.canBuildIndex(defn.Bucket) {
		logging.Errorf("LifecycleMgr.handleCreateIndex() : Cannot create index %s.%s while another index is being built",
			defn.Bucket, defn.Name)
		return errors.New(fmt.Sprintf("Cannot create Index %s.%s while another index is being built.",
			defn.Bucket, defn.Name))
	}

	existDefn, err := m.repo.GetIndexDefnByName(defn.Bucket, defn.Name)
	if err != nil {
		logging.Errorf("LifecycleMgr.handleCreateIndex() : createIndex fails. Reason = %v", err)
		return err
	}

	if existDefn != nil {
		topology, err := m.repo.GetTopologyByBucket(existDefn.Bucket)
		if err != nil {
			logging.Errorf("LifecycleMgr.handleCreateIndex() : fails to find index instance. Reason = %v", err)
			return err
		}

		state, _ := topology.GetStatusByDefn(existDefn.DefnId)
		if state != common.INDEX_STATE_NIL && state != common.INDEX_STATE_DELETED {
			return errors.New(fmt.Sprintf("Index %s.%s already exist", defn.Bucket, defn.Name))
		}
	}

	// Fetch bucket UUID.   This confirms that the bucket has existed, but it cannot confirm if the bucket
	// is still existing in the cluster (due to race condition or network partitioned).
	bucketUUID, err := m.verifyBucket(defn.Bucket)
	if err != nil || bucketUUID == common.BUCKET_UUID_NIL {
		return errors.New("Bucket does not exist or temporarily unavaible for creating new index." +
			" Please retry the operation at a later time.")
	}
	defn.BucketUUID = bucketUUID

	if err := m.repo.CreateIndex(defn); err != nil {
		logging.Errorf("LifecycleMgr.handleCreateIndex() : createIndex fails. Reason = %v", err)
		return err
	}

	if err := m.repo.addIndexToTopology(defn, common.IndexInstId(defn.DefnId)); err != nil {
		logging.Errorf("LifecycleMgr.handleCreateIndex() : createIndex fails. Reason = %v", err)
		m.repo.DropIndexById(defn.DefnId)
		return err
	}

	if m.notifier != nil {
		if err := m.notifier.OnIndexCreate(defn); err != nil {
			logging.Errorf("LifecycleMgr.handleCreateIndex() : createIndex fails. Reason = %v", err)
			m.repo.DropIndexById(defn.DefnId)
			m.repo.deleteIndexFromTopology(defn.Bucket, defn.DefnId)
			return err
		}
	}

	if err := m.updateIndexState(defn.Bucket, defn.DefnId, common.INDEX_STATE_READY); err != nil {
		logging.Errorf("LifecycleMgr.handleCreateIndex() : createIndex fails. Reason = %v", err)

		if m.notifier != nil {
			m.notifier.OnIndexDelete(defn.DefnId, defn.Bucket)
		}
		m.repo.DropIndexById(defn.DefnId)
		m.repo.deleteIndexFromTopology(defn.Bucket, defn.DefnId)
		return err
	}

	if !defn.Deferred {
		if m.notifier != nil {
			logging.Debugf("LifecycleMgr.handleCreateIndex() : start Index Build")
			if errMap := m.notifier.OnIndexBuild([]common.IndexDefnId{defn.DefnId}, []string{defn.Bucket}); len(errMap) != 0 {
				err := errMap[common.IndexInstId(defn.DefnId)]
				logging.Errorf("LifecycleMgr.hanaleCreateIndex() : createIndex fails. Reason = %v", err)

				m.notifier.OnIndexDelete(defn.DefnId, defn.Bucket)
				m.repo.DropIndexById(defn.DefnId)
				m.repo.deleteIndexFromTopology(defn.Bucket, defn.DefnId)
				return err
			}
		}
	}

	logging.Debugf("LifecycleMgr.handleCreateIndex() : createIndex completes")

	return nil
}