Ceph » CephFS

After discussing with Venky, it seems that a daemon can mirror multiple ffs so we need another list for the fs_id, so it should look like:

{
  "daemon_id": "444607",
  "filesystems": [
    {
      "filesystem_id": "1",
      "name": "myfs",
      "directory_count": 0,
      "peers": [
        {
          "uuid": "4a6983c0-3c9d-40f5-b2a9-2334a4659827",
          "remote": {
            "client_name": "client.mirror_remote",
            "cluster_name": "site-remote",
            "fs_name": "backup_fs" 
          },
          "stats": {
            "failure_count": 0,
            "recovery_count": 0
          }
        }
      ]
    }
  ]
}

BTW, this is how the json would look for multiple active mirror daemon instances (yeh, we only support running one instance right now, just putting it up for future proofing):

[
  {
    "daemon_id": 284167,
    "filesystems": [
      {
        "filesystem_id": 1,
        "name": "a",
        "directory_count": 1,
        "peers": [
          {
            "uuid": "02117353-8cd1-44db-976b-eb20609aa160",
            "remote": {
              "client_name": "client.mirror_remote",
              "cluster_name": "ceph",
              "fs_name": "backup_fs" 
            },
            "stats": {
              "failure_count": 1,
              "recovery_count": 0
            }
          }
        ]
      }
    ]
  },
  {
    "daemon_id": 324137,
    "filesystems": [
      {
        "filesystem_id": 1,
        "name": "a",
        "directory_count": 0,
        "peers": [
          {
            "uuid": "02117353-8cd1-44db-976b-eb20609aa160",
            "remote": {
              "client_name": "client.mirror_remote",
              "cluster_name": "ceph",
              "fs_name": "backup_fs" 
            },
            "stats": {
              "failure_count": 0,
              "recovery_count": 0
            }
          }
        ]
      }
    ]
  }
]