The Ultimate Guide to High Availability with MariaDB

Session Resource

Session Resource

A session is an abstraction of a client connection, any number of related backend connections, a router module session and possibly filter module sessions. Each session is created on a service and each service can have multiple sessions.

Resource Operations

Get a session

GET /v1/sessions/:id

Get a single session. :id must be a valid session ID. The session ID is the same that is exposed to the client as the connection ID.

This endpoint also supports the rdns=true parameter, which instructs MaxScale to perform reverse DNS on the client IP address. As this requires communicating with an external server, the operation may be expensive.

Response

Status: 200 OK

{
    "links": {
        "self": "http://localhost:8989/v1/sessions/9"
    },
    "data": {
        "id": "9", // The session ID, same as the one sent to the client
        "type": "sessions",
        "relationships": {
            "services": { // The service that the session uses
                "links": {
                    "self": "http://localhost:8989/v1/services/"
                },
                "data": [
                    {
                        "id": "RW-Split-Router",
                        "type": "services"
                    }
                ]
            }
        },
        "attributes": {
            "state": "Session ready for routing", // Session state
            "user": "maxuser", // The user that this session uses
            "remote": "::ffff:127.0.0.1", // The client address
            "connected": "Mon Jul 17 11:10:39 2017", // The time when the client connected
            "idle": 23.800000000000001 // How many seconds the session has been idle
        },
        "links": {
            "self": "http://localhost:8989/v1/sessions/9"
        }
    }
}

Get all sessions

GET /v1/sessions

Get all sessions.

Response

Status: 200 OK

// See `/v1/sessions/:id` for a descriptions of the fields
{
    "links": {
        "self": "http://localhost:8989/v1/sessions/"
    },
    "data": [
        {
            "id": "9",
            "type": "sessions",
            "relationships": {
                "services": {
                    "links": {
                        "self": "http://localhost:8989/v1/services/"
                    },
                    "data": [
                        {
                            "id": "RW-Split-Router",
                            "type": "services"
                        }
                    ]
                }
            },
            "attributes": {
                "state": "Session ready for routing",
                "user": "maxuser",
                "remote": "::ffff:127.0.0.1",
                "connected": "Mon Jul 17 11:10:39 2017",
                "idle": 62.899999999999999
            },
            "links": {
                "self": "http://localhost:8989/v1/sessions/9"
            }
        },
        {
            "id": "10",
            "type": "sessions",
            "relationships": {
                "services": {
                    "links": {
                        "self": "http://localhost:8989/v1/services/"
                    },
                    "data": [
                        {
                            "id": "RW-Split-Router",
                            "type": "services"
                        }
                    ]
                }
            },
            "attributes": {
                "state": "Session ready for routing",
                "user": "skysql",
                "remote": "::ffff:127.0.0.1",
                "connected": "Mon Jul 17 11:11:37 2017",
                "idle": 5.2000000000000002
            },
            "links": {
                "self": "http://localhost:8989/v1/sessions/10"
            }
        }
    ]
}

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