Launch and Operation Flow¶

Operation Flow Diagram¶

The LeoFS operation flow is as follows:

The diagram only

LeoFS launch order¶

LeoFS’s system launch process is very simple:

../_images/leofs-order-of-system-launch.png

Description of the Operations¶

Order	Command/Script	Description
1	$ bin/leofs_manager start	Start LeoFS Manager’s master
2	$ bin/leofs_manager start	Start LeoFS Manager’s slave
3	$ bin/leofs_storage start	Start LeoFS Storage
4	$ leofs-adm start	Start LeoFS storage cluster
5	$ leofs-adm status	Confirm state of the every LeoFS Storage
6	$ bin/leofs_gateway start	Start LeoFS Gateway
7	$ leofs-adm status	Confirm state of the every node - LeoFS Storaage and Gateway

LeoFS launch step by step¶

Start LeoFS Manager’s master¶

$ cd $LEOFS_DEPLOYED_DIR
$ manager_0/bin/leo_manager start

Start LeoFS Manager’s slave¶

$ cd $LEOFS_DEPLOYED_DIR
$ manager_1/bin/leo_manager start

Start LeoFS Storage¶

$ cd $LEOFS_DEPLOYED_DIR
$ leo_storage/bin/leo_storage start

Connect LeoFS Manager with leofs-adm¶

‘status’ command - Inspect LeoFS-cluster

$ leofs-adm status
[System config]
                System version : 1.0.0
                    Cluster Id : leofs_1
                         DC Id : dc_1
                Total replicas : 3
           # of successes of R : 1
           # of successes of W : 2
           # of successes of D : 2
 # of DC-awareness replicas    : 0
                     ring size : 2^128
             Current ring hash :
                Prev ring hash :
[Multi DC replication settings]
         max # of joinable DCs : 2
            # of replicas a DC : 1

[Node(s) state]
-------+--------------------------+--------------+----------------+----------------+----------------------------
 type  |           node           |    state     |  current ring  |   prev ring    |          updated at
-------+--------------------------+--------------+----------------+----------------+----------------------------
  S    | [email protected]      | attached     |                |                | 2014-04-03 11:28:20 +0900
  S    | [email protected]      | attached     |                |                | 2014-04-03 11:28:20 +0900
  S    | [email protected]      | attached     |                |                | 2014-04-03 11:28:20 +0900
  S    | [email protected]      | attached     |                |                | 2014-04-03 11:28:20 +0900

The “start” command - Start LeoFS storage cluster¶

$ leofs-adm start
OK

Confirm state of the every LeoFS storage¶

$ leofs-adm status
[System config]
                System version : 1.0.0
                    Cluster Id : leofs_1
                         DC Id : dc_1
                Total replicas : 3
           # of successes of R : 1
           # of successes of W : 2
           # of successes of D : 2
 # of DC-awareness replicas    : 0
                     ring size : 2^128
             Current ring hash : 8cd79c31
                Prev ring hash : 8cd79c31
[Multi DC replication settings]
         max # of joinable DCs : 2
            # of replicas a DC : 1

[Node(s) state]
-------+--------------------------+--------------+----------------+----------------+----------------------------
 type  |           node           |    state     |  current ring  |   prev ring    |          updated at
-------+--------------------------+--------------+----------------+----------------+----------------------------
  S    | [email protected]      | running      | 8cd79c31       | 8cd79c31       | 2014-04-03 11:28:20 +0900
  S    | [email protected]      | running      | 8cd79c31       | 8cd79c31       | 2014-04-03 11:28:20 +0900
  S    | [email protected]      | running      | 8cd79c31       | 8cd79c31       | 2014-04-03 11:28:20 +0900
  S    | [email protected]      | running      | 8cd79c31       | 8cd79c31       | 2014-04-03 11:28:20 +0900

Start LeoFS Gateway¶

$ cd $LEOFS_DEPLOYED_DIR/
$ gateway/bin/leo_gateway start

Confirm state of the every node¶

$ leofs-adm status
[System config]
                System version : 1.0.0
                    Cluster Id : leofs_1
                         DC Id : dc_1
                Total replicas : 3
           # of successes of R : 1
           # of successes of W : 2
           # of successes of D : 2
 # of DC-awareness replicas    : 0
                     ring size : 2^128
             Current ring hash : 8cd79c31
                Prev ring hash : 8cd79c31
[Multi DC replication settings]
         max # of joinable DCs : 2
            # of replicas a DC : 1

[Node(s) state]
-------+--------------------------+--------------+----------------+----------------+----------------------------
 type  |           node           |    state     |  current ring  |   prev ring    |          updated at
-------+--------------------------+--------------+----------------+----------------+----------------------------
  S    | [email protected]      | running      | 8cd79c31       | 8cd79c31       | 2014-04-03 11:28:20 +0900
  S    | [email protected]      | running      | 8cd79c31       | 8cd79c31       | 2014-04-03 11:28:20 +0900
  S    | [email protected]      | running      | 8cd79c31       | 8cd79c31       | 2014-04-03 11:28:20 +0900
  S    | [email protected]      | running      | 8cd79c31       | 8cd79c31       | 2014-04-03 11:28:20 +0900
  G    | [email protected]      | running      | 8cd79c31       | 8cd79c31       | 2014-04-03 11:28:21 +0900
  G    | [email protected]      | running      | 8cd79c31       | 8cd79c31       | 2014-04-03 11:28:21 +0900