src/commands/role.json


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{
    "ROLE": {
        "summary": "Returns the replication role.",
        "complexity": "O(1)",
        "group": "server",
        "since": "2.8.12",
        "arity": 1,
        "function": "roleCommand",
        "command_flags": [
            "NOSCRIPT",
            "LOADING",
            "STALE",
            "FAST",
            "SENTINEL"
        ],
        "acl_categories": [
            "ADMIN",
            "DANGEROUS"
        ],
        "reply_schema": {
            "oneOf": [
                {
                    "type": "array",
                    "minItems": 3,
                    "maxItems": 3,
                    "items": [
                        {
                            "const": "master"
                        },
                        {
                            "description": "current replication master offset",
                            "type": "integer"
                        },
                        {
                            "description": "connected replicas",
                            "type": "array",
                            "items": {
                                "type": "array",
                                "minItems": 3,
                                "maxItems": 3,
                                "items": [
                                    {
                                        "description": "replica ip",
                                        "type": "string"
                                    },
                                    {
                                        "description": "replica port",
                                        "type": "string"
                                    },
                                    {
                                        "description": "last acknowledged replication offset",
                                        "type": "string"
                                    }
                                ]
                            }
                        }
                    ]
                },
                {
                    "type": "array",
                    "minItems": 5,
                    "maxItems": 5,
                    "items": [
                        {
                            "const": "slave"
                        },
                        {
                            "description": "ip of master",
                            "type": "string"
                        },
                        {
                            "description": "port number of master",
                            "type": "integer"
                        },
                        {
                            "description": "state of the replication from the point of view of the master",
                            "oneOf": [
                                {
                                    "description": "the instance is in handshake with its master",
                                    "const": "handshake"
                                },
                                {
                                    "description": "the instance in not active",
                                    "const": "none"
                                },
                                {
                                    "description": "the instance needs to connect to its master",
                                    "const": "connect"
                                },
                                {
                                    "description": "the master-replica connection is in progress",
                                    "const": "connecting"
                                },
                                {
                                    "description": "the master and replica are trying to perform the synchronization",
                                    "const": "sync"
                                },
                                {
                                    "description": "the replica is online",
                                    "const": "connected"
                                },
                                {
                                    "description": "instance state is unknown",
                                    "const": "unknown"
                                }
                            ]
                        },
                        {
                            "description": "the amount of data received from the replica so far in terms of master replication offset",
                            "type": "integer"
                        }
                    ]
                },
                {
                    "type": "array",
                    "minItems": 2,
                    "maxItems": 2,
                    "items": [
                        {
                            "const": "sentinel"
                        },
                        {
                            "description": "list of master names monitored by this sentinel instance",
                            "type": "array",
                            "items": {
                                "type": "string"
                            }
                        }
                    ]
                }
            ]
        }
    }
}