Check your installation's maintenance status:
GET /setup/api/maintenance
curl -L 'https://api_key:your-amazing-password@hostname:admin_port/setup/api/maintenance'
Status: 200 OK
{
"status": "scheduled",
"scheduled_time": "Tuesday, January 22 at 15 => 34 -0800",
"connection_services": [
{
"name": "git operations",
"number": 0
},
{
"name": "mysql queries",
"number": 233
},
{
"name": "resque jobs",
"number": 54
}
]
}