Service Registry

1. Description

1.1 Model Registry

FATE-Flow interacts with FATE-Serving through Apache ZooKeeper. If use_registry is enabled in the configuration, Flow registers model download URLs with ZooKeeper when it starts, and Serving can get the models through these URLs.

Likewise, Serving registers its own address with ZooKeeper, which Flow will fetch to communicate with. If use_registry is not enabled, Flow will try to communicate with the set servings address in the configuration file.

1.2 High Availability

FATE-Flow implements automatic discovery of multiple nodes in the same party by registering its own IP and port with Apache ZooKeeper.

2. Configuring the ZooKeeper service

zookeeper:
  hosts:
    - 127.0.0.1:2181
  use_acl: false
  user: fate
  password: fate

3. ZNode

FATE-Flow Model Registry: /FATE-SERVICES/flow/online/transfer/providers
FATE-Flow High Availability: /FATE-COMPONENTS/fate-flow
FATE-Serving: /FATE-SERVICES/serving/online/publishLoad/providers

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