改M3DB后，transfer启动卡在这里：

{"level":"info","ts":1615712676.6585393,"msg":"waiting for dynamic topology initialization, if this takes a long time, make sure that a topology/placement is configured"}
transfer配置如下：

backend:
datasource: "m3db"
m3db:
enabled: true
name: "m3db"
namespace: "default"
seriesLimit: 0
docsLimit: 0
daysLimit: 7 # max query time
# https://m3db.github.io/m3/m3db/architecture/consistencylevels/
writeConsistencyLevel: "majority" # one|majority|all
readConsistencyLevel: "unstrict_majority" # one|unstrict_majority|majority|all
config:
service:
# KV environment, zone, and service from which to write/read KV data (placement
# and configuration). Leave these as the default values unless you know what
# you're doing.
env: default_env
zone: embedded
service: m3db
etcdClusters:
- zone: embedded
endpoints:
- 127.0.0.1:2379
#tls:
# caCrtPath: /etc/etcd/certs/ca.pem
# crtPath: /etc/etcd/certs/etcd-client.pem
# keyPath: /etc/etcd/certs/etcd-client-key.pem
tsdb:
enabled: false
name: "tsdb"
cluster:
tsdb01: 127.0.0.1:8011
influxdb:
enabled: false
username: "influx"
password: "admin123"
precision: "s"
database: "n9e"
address: "http://127.0.0.1:8086"
opentsdb:
enabled: false
address: "127.0.0.1:4242"
kafka:
enabled: false
brokersPeers: "192.168.1.1:9092,192.168.1.2:9092"
topic: "n9e"
logger:
dir: logs/transfer
level: INFO
keepHours: 24

解决方案：调用m3的接口，创建/api/v1/database/create创建database，README里有个例子，retentionTime是数据存储时长，测试阶段可以设置为48h，存2天，足够了

由此m3db初始化后问题解决。但出现了新的问题：

2021-03-14 18:49:03.579840 ERROR m3db/m3db.go:109 unable to writeTagged: failed to meet consistency level majority with 0/1 success, 1 nodes responded, errors: [error writing to host m3db_local: dial tcp 127.0.0.1:9000: connect: connection refused]
解决方案：CPU指令集缺少rdtscp支持
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原文链接：https://blog.csdn.net/didi_cloud/article/details/115122598