MogileFS::Admin

Changes the device status of device on host to state which can be ‘alive’, ‘down’, or ‘dead’.

Changes the device weight of device on host to weight. weight should be a non-negative Integer. Devices with higher weight values are more likely to be chosen for reads and writes.

Clears the tracker caches. Not implemented in all versions of MogileFS

Creates a new class in domain named klass with policy for replication. Raises on failure.

Creates device with Integer devid on host host may be an integer for hostid or String for hostname

Creates a new domain named domain. Returns nil if creation failed.

Creates a new host named host. args must contain :ip and :port. Returns true if successful, false if not.

Removes class klass from domain. Returns true if successful. Raises on failure

Deletes domain. Returns true if successful, raises MogileFS::Backend::DomainNotFoundError if not

Deletes host host. Returns nil on failure.

Enumerates fids using list_fids. Returns the number of valid fids processed

Returns an Array of device status Hashes. If devid is given only that device is returned.

admin.get_devices 1

Returns:

[{"status"=>"alive",
  "mb_asof"=>nil,
  "mb_free"=>666000,
  "devid"=>1,
  "hostid"=>1,
  "mb_used"=>666,
  "utilization"=>0.0,
  "reject_bad_md5"=>false,
  "observed_state"=>"writeable",
  "mb_total"=>666666}]

Returns the domains and classes, and their policies present in the mogilefs.

admin.get_domains

Returns (on newer MogileFS servers):

{
  "test" => {
    "default" => {
      "mindevcount" => 2,
      "replpolicy" => "MultipleHosts()",
      "hashtype => nil,
    }
  }
}

Returns (on older MogileFS servers without replication policies):

{"test"=>{"normal"=>3, "default"=>2}}

Returns an Array of host status Hashes. If hostid is given only that host is returned.

admin.get_hosts 1

Returns:

[{"status"=>"alive",
  "http_get_port"=>nil,
  "http_port"=>"",
  "hostid"=>"1",
  "hostip"=>"",
  "hostname"=>"rur-1",
  "altip"=>"",
  "altmask"=>""}]

Returns a statistics structure representing the state of mogilefs.

*** This command no longer works with recent versions of MogileFS *** *** Use mogstats(1) from the MogileFS::Utils package on CPAN ***

admin.get_stats

Returns:

{"fids"=>{"max"=>"99", "count"=>"2"},
 "device"=>
  [{"status"=>"alive", "files"=>"2", "id"=>"1", "host"=>"rur-1"},
   {"status"=>"alive", "files"=>"2", "id"=>"2", "host"=>"rur-2"}],
 "replication"=>
  [{"files"=>"2", "class"=>"normal", "devcount"=>"2", "domain"=>"test"}],
 "file"=>[{"files"=>"2", "class"=>"normal", "domain"=>"test"}]}

Returns an Array of fid Hashes from from_fid, limited to count

admin.list_fids 0, 100

Returns:

[{"fid"=>99,
  "class"=>"normal",
  "domain"=>"test",
  "devcount"=>2,
  "length"=>4,
  "key"=>"file_key"},
 {"fid"=>82,
  "class"=>"normal",
  "devcount"=>2,
  "domain"=>"test",
  "length"=>9,
  "key"=>"new_new_key"}]

reschedules all deferred replication, returns a hash with the number of files rescheduled:

admin.replicate_now => { "count" => 5 }

Updates class klass in domain with policy for replication. Raises on failure.

Updates host with args. Returns true if successful, false if not.

Turns the response res from the backend into an Array of Hashes from 1 to res. If underscore is true then a ‘_’ character is assumed between the prefix and the hash key value.

res = {"host1_remoteroot"=>"/mnt/mogilefs/rur-1",
       "host1_hostname"=>"rur-1",
       "host1_hostid"=>"1",
       "host1_http_get_port"=>"",
       "host1_altip"=>"",
       "hosts"=>"1",
       "host1_hostip"=>"",
       "host1_http_port"=>"",
       "host1_status"=>"alive",
       "host1_altmask"=>""}
admin.clean 'hosts', 'host', res

Returns:

[{"status"=>"alive",
  "http_get_port"=>nil,
  "http_port"=>7600,
  "hostid"=>1,
  "hostip"=>"192.168.1.3",
  "hostname"=>"rur-1",
  "altip"=>"",
  "altmask"=>""}]

Modifies klass on domain to store files on mindevcount devices via action. Returns the class name if successful, raises if not

Modifies host using args via action. Returns true if successful, false if not.