Commit 8e640892 authored by Zhang Chen's avatar Zhang Chen Committed by Jason Wang
Browse files

docs: Add COLO status diagram to COLO-FT.txt 



This diagram make user better understand COLO.
Suggested by Markus Armbruster.

Signed-off-by: default avatarZhang Chen <zhangckid@gmail.com>
Signed-off-by: default avatarZhang Chen <chen.zhang@intel.com>
Signed-off-by: default avatarJason Wang <jasowang@redhat.com>
parent 2518aec1

docs/COLO-FT.txt

+34 −0
Original line number Diff line number Diff line
@@ -110,6 +110,40 @@ Note: 
HeartBeat has not been implemented yet, so you need to trigger failover process

by using 'x-colo-lost-heartbeat' command.



== COLO operation status ==



+-----------------+

|                 |

|    Start COLO   |

|                 |

+--------+--------+

         |

         |  Main qmp command:

         |  migrate-set-capabilities with x-colo

         |  migrate

         |

         v

+--------+--------+

|                 |

|  COLO running   |

|                 |

+--------+--------+

         |

         |  Main qmp command:

         |  x-colo-lost-heartbeat

         |  or

         |  some error happened

         v

+--------+--------+

|                 |  send qmp event:

|  COLO failover  |  COLO_EXIT

|                 |

+-----------------+



COLO use the qmp command to switch and report operation status.

The diagram just shows the main qmp command, you can get the detail

in test procedure.



== Test procedure ==

1. Startup qemu

Primary: