Deploy

配置文件

# [Member]
# Unique node name
name: "milvus-test-btxdkfxhclwm-etcd-1"

# Data storage directory
data-dir: "/mnt/data/etcd"

# Inter-cluster communication listening address
listen-peer-urls: "http://0.0.0.0:9054"

# Client access listening address
listen-client-urls: "http://0.0.0.0:6054"

# Exposed address for inter-cluster communication
initial-advertise-peer-urls: "http://172.17.39.182:9054"

# Exposed address for client access
advertise-client-urls: "http://172.17.39.182:6054"

# Disable v2 version (Boolean)
enable-v2: false

# Log configuration
log-level: "info"
log-outputs: ["/home/vdb/log/etcd.log"]

# Snapshot and WAL management
max-snapshots: 5
max-wals: 5

# [Clustering]
# Peer addresses of all nodes in the cluster
initial-cluster: "milvus-test-btxdkfxhclwm-etcd-1=http://172.17.39.182:9054,milvus-test-btxdkfxhclwm-etcd-2=http://172.17.40.139:9054,milvus-test-btxdkfxhclwm-etcd-3=http://172.17.39.183:9054"

# Unique token for the cluster
initial-cluster-token: "milvus-test-btxdkfxhclwm"

# Cluster state (new/existing)
initial-cluster-state: "new"

# Heartbeat and Election timeout (Integers)
heartbeat-interval: 1000
election-timeout: 10000

1 配置模板

etcd.conf.tpl

# [Member]
# Unique node name
name: "{{ meta.node_id }}"

# Data storage directory
data-dir: "/mnt/data/etcd"

# Inter-cluster communication listening address
listen-peer-urls: "http://0.0.0.0:{{ meta.ports.peer_port }}"

# Client access listening address
listen-client-urls: "http://0.0.0.0:{{ meta.ports.client_port }}"

# Exposed address for inter-cluster communication
initial-advertise-peer-urls: "http://{{ meta.ip }}:{{ meta.ports.peer_port }}"

# Exposed address for client access
advertise-client-urls: "http://{{ meta.ip }}:{{ meta.ports.client_port }}"

# Disable v2 version (Boolean)
enable-v2: false

# Log configuration
log-level: "info"
log-outputs: ["{{ meta.base_dir }}/log/etcd.log"]

# Snapshot and WAL management
max-snapshots: 5
max-wals: 5

# [Clustering]
# Peer addresses of all nodes in the cluster
initial-cluster: "{{ custom.initial_cluster }}"

# Unique token for the cluster
initial-cluster-token: "{{ meta.app_id }}"

# Cluster state (new/existing)
initial-cluster-state: "{{ custom.initial_cluster_state }}"

# Heartbeat and Election timeout (Integers)
heartbeat-interval: 1000
election-timeout: 10000

2 查看状态

2.1 health

$./bin/etcdctl --endpoints=http://127.0.0.1:6054 endpoint health
http://127.0.0.1:6054 is healthy: successfully committed proposal: took = 7.30586ms

2.2 status

$./bin/etcdctl --endpoints=http://172.17.40.139:6054,http://172.17.39.183:6054,http://172.17.39.182:6054 --write-out=table endpoint status
+---------------------------+------------------+---------+-----------------+---------+--------+-----------------------+--------+-----------+------------+-----------+------------+--------------------+--------+--------------------------+-------------------+
|         ENDPOINT          |        ID        | VERSION | STORAGE VERSION | DB SIZE | IN USE | PERCENTAGE NOT IN USE | QUOTA  | IS LEADER | IS LEARNER | RAFT TERM | RAFT INDEX | RAFT APPLIED INDEX | ERRORS | DOWNGRADE TARGET VERSION | DOWNGRADE ENABLED |
+---------------------------+------------------+---------+-----------------+---------+--------+-----------------------+--------+-----------+------------+-----------+------------+--------------------+--------+--------------------------+-------------------+
| http://172.17.40.139:6054 |   3f3a267f073d91 |   3.6.7 |           3.6.0 |   20 kB |  16 kB |                   20% | 2.1 GB |     false |      false |         2 |         10 |                 10 |        |                          |             false |
| http://172.17.39.183:6054 | 23b2312b21d219fd |   3.6.7 |           3.6.0 |   20 kB |  16 kB |                   20% | 2.1 GB |     false |      false |         2 |         10 |                 10 |        |                          |             false |
| http://172.17.39.182:6054 | c6168a7ecf5fd86d |   3.6.7 |           3.6.0 |   20 kB |  16 kB |                   20% | 2.1 GB |      true |      false |         2 |         10 |                 10 |        |                          |             false |
+---------------------------+------------------+---------+-----------------+---------+--------+-----------------------+--------+-----------+------------+-----------+------------+--------------------+--------+--------------------------+-------------------+

• IS LEADER: 节点 172.17.39.182 (etcd-1) 被选为了 Leader，其余两个是 Follower。这是集群正常工作的核心标志。

• RAFT TERM (2): 选主任期为 2。这通常意味着集群经历过一次成功的选举（第一次是初始化，第二次选出了当前的 Leader）。

• RAFT INDEX (10): 三个节点的 Raft 索引值完全一致（都是 10），说明数据在所有节点间是强一致同步的。

• DB SIZE (20 kB): 数据库刚刚初始化，占用非常小，一切正常。

2.3 读写

$./bin/etcdctl --endpoints=http://172.17.39.182:6054 put test_key "hello_milvus"
OK
$./bin/etcdctl --endpoints=http://172.17.40.139:6054 get test_key
test_key
hello_milvus