init_worker_by_lua error: /usr/local/apisix/apisix/consumer.lua:146: attempt to index local 'config' (a nil value) plugin.lua:252: load_stream(): new plugins: {"syslog":true,"ip-restriction":true,"mqtt-proxy":true,"limit-conn":true}, context: init_worker_by_lua*

[Novemberinp]

apisix error(veresion:):

apisix_apisix.2.dqpq01vm50vz@prod-ecs-swarm-003    | 	/usr/local/apisix/apisix/init.lua:152: in function 'http_init_worker'
apisix_apisix.2.dqpq01vm50vz@prod-ecs-swarm-003    | 	init_worker_by_lua:2: in main chunk
apisix_apisix.2.dqpq01vm50vz@prod-ecs-swarm-003    | 2025/09/17 09:37:40 [warn] 53#53: *4 [lua] plugin.lua:252: load_stream(): new plugins: {"limit-conn":true,"syslog":true,"ip-restriction":true,"mqtt-proxy":true}, context: init_worker_by_lua*
apisix_apisix.2.dqpq01vm50vz@prod-ecs-swarm-003    | 2025/09/17 09:37:40 [warn] 49#49: *2 [lua] plugin.lua:252: load_stream(): new plugins: {"limit-conn":true,"syslog":true,"ip-restriction":true,"mqtt-proxy":true}, context: init_worker_by_lua*
apisix_apisix.2.dqpq01vm50vz@prod-ecs-swarm-003    | 2025/09/17 09:37:40 [warn] 55#55: *7 [lua] plugin.lua:252: load_stream(): new plugins: {"limit-conn":true,"syslog":true,"ip-restriction":true,"mqtt-proxy":true}, context: init_worker_by_lua*
apisix_apisix.2.dqpq01vm50vz@prod-ecs-swarm-003    | 2025/09/17 09:37:40 [error] 53#53: init_worker_by_lua error: /usr/local/apisix/apisix/consumer.lua:146: attempt to index local 'config' (a nil value)
apisix_apisix.2.dqpq01vm50vz@prod-ecs-swarm-003    | stack traceback:
apisix_apisix.2.dqpq01vm50vz@prod-ecs-swarm-003    | 	/usr/local/apisix/apisix/consumer.lua:146: in function 'init_worker'
apisix_apisix.2.dqpq01vm50vz@prod-ecs-swarm-003    | 	/usr/local/apisix/apisix/init.lua:152: in function 'http_init_worker'
apisix_apisix.2.dqpq01vm50vz@prod-ecs-swarm-003    | 	init_worker_by_lua:2: in main chunk
apisix_apisix.2.dqpq01vm50vz@prod-ecs-swarm-003    | 2025/09/17 09:37:40 [error] 55#55: init_worker_by_lua error: /usr/local/apisix/apisix/consumer.lua:146: attempt to index local 'config' (a nil value)
apisix_apisix.1.v7qkfpw17g8w@prod-ecs-swarm-002    | 	/usr/local/apisix/apisix/consumer.lua:146: in function 'init_worker'
apisix_apisix.2.dqpq01vm50vz@prod-ecs-swarm-003    | stack traceback:
apisix_apisix.1.v7qkfpw17g8w@prod-ecs-swarm-002    | 	/usr/local/apisix/apisix/init.lua:152: in function 'http_init_worker'
apisix_apisix.1.v7qkfpw17g8w@prod-ecs-swarm-002    | 	init_worker_by_lua:2: in main chunk
apisix_apisix.1.v7qkfpw17g8w@prod-ecs-swarm-002    | 2025/09/17 09:37:40 [warn] 53#53: *1 [lua] plugin.lua:252: load_stream(): new plugins: {"syslog":true,"ip-restriction":true,"mqtt-proxy":true,"limit-conn":true}, context: init_worker_by_lua*
apisix_apisix.1.v7qkfpw17g8w@prod-ecs-swarm-002    | 2025/09/17 09:37:40 [error] 53#53: init_worker_by_lua error: /usr/local/apisix/apisix/consumer.lua:146: attempt to index local 'config' (a nil value)
apisix_apisix.1.v7qkfpw17g8w@prod-ecs-swarm-002    | stack traceback:
apisix_apisix.1.v7qkfpw17g8w@prod-ecs-swarm-002    | 	/usr/local/apisix/apisix/consumer.lua:146: in function 'init_worker'
apisix_apisix.1.v7qkfpw17g8w@prod-ecs-swarm-002    | 	/usr/local/apisix/apisix/init.lua:152: in function 'http_init_worker'
apisix_apisix.1.v7qkfpw17g8w@prod-ecs-swarm-002    | 	init_worker_by_lua:2: in main chunk
apisix_apisix.1.v7qkfpw17g8w@prod-ecs-swarm-002    | 2025/09/17 09:37:40 [warn] 51#51: *8 [lua] plugin.lua:252: load_stream(): new plugins: {"syslog":true,"ip-restriction":true,"mqtt-proxy":true,"limit-conn":true}, context: init_worker_by_lua*
apisix_apisix.1.v7qkfpw17g8w@prod-ecs-swarm-002    | 2025/09/17 09:37:40 [error] 51#51: init_worker_by_lua error: /usr/local/apisix/apisix/consumer.lua:146: attempt to index local 'config' (a nil value)
apisix_apisix.1.v7qkfpw17g8w@prod-ecs-swarm-002    | stack traceback:
apisix_apisix.1.v7qkfpw17g8w@prod-ecs-swarm-002    | 	/usr/local/apisix/apisix/consumer.lua:146: in function 'init_worker'
apisix_apisix.1.v7qkfpw17g8w@prod-ecs-swarm-002    | 	/usr/local/apisix/apisix/init.lua:152: in function 'http_init_worker'
apisix_apisix.2.dqpq01vm50vz@prod-ecs-swarm-003    | 	/usr/local/apisix/apisix/consumer.lua:146: in function 'init_worker'
apisix_apisix.1.v7qkfpw17g8w@prod-ecs-swarm-002    | 	init_worker_by_lua:2: in main chunk
apisix_apisix.2.dqpq01vm50vz@prod-ecs-swarm-003    | 	/usr/local/apisix/apisix/init.lua:152: in function 'http_init_worker'
apisix_apisix.2.dqpq01vm50vz@prod-ecs-swarm-003    | 	init_worker_by_lua:2: in main chunk
apisix_apisix.2.dqpq01vm50vz@prod-ecs-swarm-003    | 2025/09/17 09:37:40 [error] 49#49: init_worker_by_lua error: /usr/local/apisix/apisix/consumer.lua:146: attempt to index local 'config' (a nil value)
apisix_apisix.2.dqpq01vm50vz@prod-ecs-swarm-003    | stack traceback:
apisix_apisix.2.dqpq01vm50vz@prod-ecs-swarm-003    | 	/usr/local/apisix/apisix/consumer.lua:146: in function 'init_worker'
apisix_apisix.2.dqpq01vm50vz@prod-ecs-swarm-003    | 	/usr/local/apisix/apisix/init.lua:152: in function 'http_init_worker'
apisix_apisix.2.dqpq01vm50vz@prod-ecs-swarm-003    | 	init_worker_by_lua:2: in main chunk
apisix_apisix.2.dqpq01vm50vz@prod-ecs-swarm-003    | 2025/09/17 09:37:40 [warn] 57#57: *6 [lua] plugin.lua:252: load_stream(): new plugins: {"limit-conn":true,"syslog":true,"ip-restriction":true,"mqtt-proxy":true}, context: init_worker_by_lua*
apisix_apisix.2.dqpq01vm50vz@prod-ecs-swarm-003    | 2025/09/17 09:37:40 [error] 57#57: init_worker_by_lua error: /usr/local/apisix/apisix/consumer.lua:146: attempt to index local 'config' (a nil value)
apisix_apisix.2.dqpq01vm50vz@prod-ecs-swarm-003    | stack traceback:
apisix_apisix.2.dqpq01vm50vz@prod-ecs-swarm-003    | 	/usr/local/apisix/apisix/consumer.lua:146: in function 'init_worker'
apisix_apisix.2.dqpq01vm50vz@prod-ecs-swarm-003    | 	/usr/local/apisix/apisix/init.lua:152: in function 'http_init_worker'
apisix_apisix.2.dqpq01vm50vz@prod-ecs-swarm-003    | 	init_worker_by_lua:2: in main chunk
apisix_apisix.2.dqpq01vm50vz@prod-ecs-swarm-003    | 2025/09/17 09:37:40 [warn] 52#52: *5 [lua] plugin.lua:252: load_stream(): new plugins: {"limit-conn":true,"syslog":true,"ip-restriction":true,"mqtt-proxy":true}, context: init_worker_by_lua*
apisix_apisix.2.dqpq01vm50vz@prod-ecs-swarm-003    | 2025/09/17 09:37:40 [error] 52#52: init_worker_by_lua error: /usr/local/apisix/apisix/consumer.lua:146: attempt to index local 'config' (a nil value)
apisix_apisix.2.dqpq01vm50vz@prod-ecs-swarm-003    | stack traceback:
apisix_apisix.2.dqpq01vm50vz@prod-ecs-swarm-003    | 	/usr/local/apisix/apisix/consumer.lua:146: in function 'init_worker'
apisix_apisix.1.v7qkfpw17g8w@prod-ecs-swarm-002    | 2025/09/17 09:37:40 [warn] 77#77: *4 [lua] plugin.lua:252: load_stream(): new plugins: {"syslog":true,"ip-restriction":true,"mqtt-proxy":true,"limit-conn":true}, context: init_worker_by_lua*
apisix_apisix.2.dqpq01vm50vz@prod-ecs-swarm-003    | 	/usr/local/apisix/apisix/init.lua:152: in function 'http_init_worker'
apisix_apisix.1.v7qkfpw17g8w@prod-ecs-swarm-002    | 2025/09/17 09:37:40 [error] 77#77: init_worker_by_lua error: /usr/local/apisix/apisix/consumer.lua:146: attempt to index local 'config' (a nil value)
apisix_apisix.1.v7qkfpw17g8w@prod-ecs-swarm-002    | stack traceback:
apisix_apisix.1.v7qkfpw17g8w@prod-ecs-swarm-002    | 	/usr/local/apisix/apisix/consumer.lua:146: in function 'init_worker'
apisix_apisix.1.v7qkfpw17g8w@prod-ecs-swarm-002    | 	/usr/local/apisix/apisix/init.lua:152: in function 'http_init_worker'
apisix_apisix.1.v7qkfpw17g8w@prod-ecs-swarm-002    | 	init_worker_by_lua:2: in main chunk
apisix_apisix.2.dqpq01vm50vz@prod-ecs-swarm-003    | 	init_worker_by_lua:2: in main chunk
apisix_apisix.2.dqpq01vm50vz@prod-ecs-swarm-003    | 2025/09/17 09:37:40 [warn] 51#51: *3 [lua] plugin.lua:252: load_stream(): new plugins: {"limit-conn":true,"syslog":true,"ip-restriction":true,"mqtt-proxy":true}, context: init_worker_by_lua*
apisix_apisix.2.dqpq01vm50vz@prod-ecs-swarm-003    | 2025/09/17 09:37:40 [error] 51#51: init_worker_by_lua error: /usr/local/apisix/apisix/consumer.lua:146: attempt to index local 'config' (a nil value)
apisix_apisix.2.dqpq01vm50vz@prod-ecs-swarm-003    | stack traceback:
apisix_apisix.2.dqpq01vm50vz@prod-ecs-swarm-003    | 	/usr/local/apisix/apisix/consumer.lua:146: in function 'init_worker'
apisix_apisix.2.dqpq01vm50vz@prod-ecs-swarm-003    | 	/usr/local/apisix/apisix/init.lua:152: in function 'http_init_worker'
apisix_apisix.2.dqpq01vm50vz@prod-ecs-swarm-003    | 	init_worker_by_lua:2: in main chunk
apisix_apisix.2.dqpq01vm50vz@prod-ecs-swarm-003    | 2025/09/17 09:37:40 [warn] 60#60: *8 [lua] plugin.lua:252: load_stream(): new plugins: {"limit-conn":true,"syslog":true,"ip-restriction":true,"mqtt-proxy":true}, context: init_worker_by_lua*
apisix_apisix.2.dqpq01vm50vz@prod-ecs-swarm-003    | 2025/09/17 09:37:40 [error] 60#60: init_worker_by_lua error: /usr/local/apisix/apisix/consumer.lua:146: attempt to index local 'config' (a nil value)
apisix_apisix.2.dqpq01vm50vz@prod-ecs-swarm-003    | stack traceback:
apisix_apisix.2.dqpq01vm50vz@prod-ecs-swarm-003    | 	/usr/local/apisix/apisix/consumer.lua:146: in function 'init_worker'
apisix_apisix.2.dqpq01vm50vz@prod-ecs-swarm-003    | 	/usr/local/apisix/apisix/init.lua:152: in function 'http_init_worker'
apisix_apisix.2.dqpq01vm50vz@prod-ecs-swarm-003    | 	init_worker_by_lua:2: in main chunk
apisix_apisix.2.dqpq01vm50vz@prod-ecs-swarm-003    | 2025/09/17 09:37:40 [warn] 92#92: *9 [lua] plugin.lua:252: load_stream(): new plugins: {"limit-conn":true,"syslog":true,"ip-restriction":true,"mqtt-proxy":true}, context: init_worker_by_lua*
apisix_apisix.2.dqpq01vm50vz@prod-ecs-swarm-003    | 2025/09/17 09:37:40 [error] 92#92: init_worker_by_lua error: /usr/local/apisix/apisix/consumer.lua:146: attempt to index local 'config' (a nil value)
apisix_apisix.2.dqpq01vm50vz@prod-ecs-swarm-003    | stack traceback:
apisix_apisix.2.dqpq01vm50vz@prod-ecs-swarm-003    | 	/usr/local/apisix/apisix/consumer.lua:146: in function 'init_worker'
apisix_apisix.2.dqpq01vm50vz@prod-ecs-swarm-003    | 	/usr/local/apisix/apisix/init.lua:152: in function 'http_init_worker'
apisix_apisix.2.dqpq01vm50vz@prod-ecs-swarm-003    | 	init_worker_by_lua:2: in main chunk

apisix-stack:

version: '3.8'

services:
  apisix:
    image: apache/apisix:3.2.0-debian
    networks:
      - app-net
    #volumes:
    #  - ./apisix-config.yaml:/usr/local/apisix/conf/config.yaml:ro
    configs:
      - source: apisix_config
        target: /usr/local/apisix/conf/config.yaml
        uid: '65534'  # nobody 用户 UID
        gid: '65534'  # nogroup 组 GID
        mode: 0444    # 所有用户可读
    secrets:
      - source: apisix_admin_key
        target: apisix_admin_key
        uid: '65534'
        gid: '65534'
        mode: 0400
    ports:
      - target: 9080
        published: 9080
        protocol: tcp
        mode: ingress
      - target: 9443
        published: 9443
        protocol: tcp
        mode: ingress
    deploy:
      replicas: 3
      restart_policy:
        condition: on-failure
        delay: 30s
        max_attempts: 10
      placement:
        max_replicas_per_node: 1
        constraints:
          - node.role != drain

  dashboard:
    image: apache/apisix-dashboard:3.0.1-alpine
    networks:
      - app-net
    #volumes:
    #  - ./dashboard-config.yaml:/usr/local/apisix-dashboard/conf/conf.yaml
    configs:
      - source: dashboard_config
        target: /usr/local/apisix-dashboard/conf/conf.yaml
        uid: '65534'
        gid: '65534'
        mode: 0444
    #environment:
    #  - ADMIN_USER=admin
    #  - ADMIN_PASS=Ad9f4j6tgG92u  # 明文密码
    ports:
      - target: 9000
        published: 9000
        protocol: tcp
        mode: host
    secrets:
      - source: apisix_admin_key
        target: apisix_admin_key
        uid: '65534'
        gid: '65534'
        mode: 0400
    deploy:
      replicas: 1
      restart_policy:
        condition: on-failure
      placement:
        constraints:
          - node.role == manager

networks:
  app-net:
    external: true
secrets:
  apisix_admin_key:
    external: true

configs:
  apisix_config:
    external: true
  dashboard_config:
    external: true

config:

apisix:
  node_listen: 9080              # APISIX listening port
  enable_ipv6: false

  enable_control: true
  control:
    ip: "0.0.0.0"
    port: 9092

deployment:
  role: traditional  # 传统部署模式
  role_traditional:
    config_provider: etcd  # 路由/上游等配置从 Etcd 读取
    consumer:
      config_provider: etcd
  admin:
    allow_admin:               # https://nginx.org/en/docs/http/ngx_http_access_module.html#allow
      - 0.0.0.0/0              # We need to restrict ip access rules for security. 0.0.0.0/0 is for test.

    admin_key:
      - name: "admin"
        key: edd1c9f034335f136f87ad84b625c8f1
        role: admin                 # admin: manage all configuration data

      - name: "viewer"
        key: 4054f7cf07e344346cd3f287985e76a2
        role: viewer

  etcd:
    host:                           # it's possible to define multiple etcd hosts addresses of the same etcd cluster.
      - "http://etcd_etcd-1:2379"          # multiple etcd address
      - "http://etcd_etcd-2:2379"          # multiple etcd address
      - "http://etcd_etcd-3:2379"          # multiple etcd address
    prefix: "/apisix"               # apisix configurations prefix
    timeout: 30                     # 30 seconds

dashboard-config:

conf:
  listen:
    host: 0.0.0.0
    port: 9000
  etcd:
    endpoints:
      - "http://etcd_etcd-1:2379"
      - "http://etcd_etcd-2:2379"
      - "http://etcd_etcd-3:2379"
  log:
    level: warn
    filePath: /usr/local/apisix-dashboard/logs/manager-api.log
  authentication:
    secret_file: "/run/secrets/apisix_admin_key"  # 直接引用 Secret 文件
    expire_time: 3600
    users:
      - username: admin
        password: "Ad9f4j6tgG92u"

[dosubot[bot]]

Hi @Novemberinp! I'm Dosu and I’m helping the apisix team.

This error usually means APISIX is trying to load consumer data from etcd, but the data is missing or malformed—specifically, the expected plugins field is nil or not a table for one or more consumers. APISIX expects each consumer object in etcd (under the /consumers prefix) to have a structure like:

{
  "username": "foo",
  "plugins": {
    "key-auth": {
      "key": "foo-key"
    }
  }
}

If the consumer data is missing, empty, or doesn't include the plugins field, you'll see this error during worker startup. To fix it, check your etcd contents for /apisix/consumers and ensure each consumer object is correctly structured with a plugins field and at least one authentication plugin configured. You can use etcdctl or the APISIX Dashboard to inspect and correct the data. More details on consumer structure are in the APISIX consumer docs.

No recent changes or known bugs in APISIX 3.2.0 address this specific error, so it's almost certainly a data/configuration issue in etcd.

To reply, just mention @dosu.

---

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[Novemberinp]

Thank you. I'll continue to investigate. I'm checking if the consumer configuration in etcd is created by default when apisix starts. My apisix has just been set up.