tiup cluster deploy执行部署命令发生错误 String node doesn't MapNode

请问tiup cluster deploy tidb-test v4.0.0-rc ./topology.yaml --user root -i /home/root/.ssh/gcp_rsa命令中,gcp_rsa是怎么来的,必须的吗?我已经生成了ssh可以吗?我是用单个虚拟机上,部署tikv、tidb、pb。都在同一台机器上部署。报错String node doesn’t MapNode是什么意思

  1. 按照tiup部署文档部署,编辑完yaml

  2. 编辑好yaml文件 按照文档,只是改了那三个组件的ip为虚拟机本地的ip

# # Global variables are applied to all deployments and as the default value of
# # them if the specific deployment value missing.

global:
  user: "tidb"
  ssh_port: 22
  deploy_dir: "/tidb-deploy"
  data_dir: "/tidb-data"

# # Monitored variables are used to all the machine
monitored:
  node_exporter_port: 9100
  blackbox_exporter_port: 9115

server_configs:
  tidb:
    log.slow-threshold: 300
    binlog.enable: false
    binlog.ignore-error: false
  tikv:
    # server.grpc-concurrency: 4
    # raftstore.apply-pool-size: 2
    # raftstore.store-pool-size: 2
    # rocksdb.max-sub-compactions: 1
    # storage.block-cache.capacity: "16GB"
    # readpool.unified.max-thread-count: 12
    readpool.storage.use-unified-pool: true
    readpool.coprocessor.use-unified-pool: true
  pd:
    schedule.leader-schedule-limit: 4
    schedule.region-schedule-limit: 2048
    schedule.replica-schedule-limit: 64
    replication.enable-placement-rules: true
  tiflash:
    logger.level: "info"
  # pump:
  #   gc: 7

pd_servers:
  - host: 192.168.31.120

tidb_servers:
  - host: 192.168.31.120

tikv_servers:
  - host: 192.168.31.120

tiflash_servers:
  - host: 192.168.31.120


monitoring_servers:
  - host: 192.168.31.120


grafana_servers:
  - host: 192.168.31.120


alertmanager_servers:
  - host: 192.168.31.120

  1. 执行部署命令 错误信息为
[root@localhost ~]# tiup cluster deploy tidb-test v4.0.0-rc ./topology.yaml --user root -i /home/root/.ssh/gcp_rsa
Starting component `cluster`: /root/.tiup/components/cluster/v0.4.9/cluster deploy tidb-test v4.0.0-rc ./topology.yaml --user root -i /home/root/.ssh/gcp_rsa

Error: Failed to parse topology file ./topology.yaml (utils.topology.parse_failed)
  caused by: String node doesn't MapNode

Please check the syntax of your topology file ./topology.yaml and try again.
Error: run `/root/.tiup/components/cluster/v0.4.9/cluster` (wd:/root/.tiup/data/RwZ8yZk) failed: exit status 1

您好: 单机测试的节点不足,tikv建议3个节点。 如果您只是想要体验,建议使用tiup playground体验即可.

但是有朋友tikv 1个节点也可以部署成功。所以才想知道那个报错什么意思?

请上传部署成功的配置文件,并且执行tiup命令获取当前集群拓扑信息,多谢