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| author | zhanghailiang <zhang.zhanghailiang@huawei.com> | 2016-10-27 14:43:03 +0800 |
|---|---|---|
| committer | Amit Shah <amit@amitshah.net> | 2016-10-30 15:17:39 +0530 |
| commit | d89e666e0666a0023e4aa6b6b4c4d25d049c5215 (patch) | |
| tree | 740710b8f1287ac80c2aa5b6be57a8204b5171fd /qapi-schema.json | |
| parent | 18cc23d72cabf708d5a7e6b5948ec0420a1a2ebd (diff) | |
| download | qemu-d89e666e0666a0023e4aa6b6b4c4d25d049c5215.zip | |
COLO: Add 'x-colo-lost-heartbeat' command to trigger failover
We leave users to choose whatever heartbeat solution they want,
if the heartbeat is lost, or other errors they detect, they can use
experimental command 'x_colo_lost_heartbeat' to tell COLO to do failover,
COLO will do operations accordingly.
For example, if the command is sent to the Primary side,
the Primary side will exit COLO mode, does cleanup work,
and then, PVM will take over the service work. If sent to the Secondary side,
the Secondary side will run failover work, then takes over PVM's service work.
Cc: Luiz Capitulino <lcapitulino@redhat.com>
Cc: Eric Blake <eblake@redhat.com>
Cc: Markus Armbruster <armbru@redhat.com>
Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Amit Shah <amit@amitshah.net>
Diffstat (limited to 'qapi-schema.json')
| -rw-r--r-- | qapi-schema.json | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/qapi-schema.json b/qapi-schema.json index 05fed9a2c0..a18484115f 100644 --- a/qapi-schema.json +++ b/qapi-schema.json @@ -823,6 +823,35 @@ 'vmstate-send', 'vmstate-size', 'vmstate-received', 'vmstate-loaded' ] } +## +# @COLOMode +# +# The colo mode +# +# @unknown: unknown mode +# +# @primary: master side +# +# @secondary: slave side +# +# Since: 2.8 +## +{ 'enum': 'COLOMode', + 'data': [ 'unknown', 'primary', 'secondary'] } + +## +# @x-colo-lost-heartbeat +# +# Tell qemu that heartbeat is lost, request it to do takeover procedures. +# If this command is sent to the PVM, the Primary side will exit COLO mode. +# If sent to the Secondary, the Secondary side will run failover work, +# then takes over server operation to become the service VM. +# +# Since: 2.8 +## +{ 'command': 'x-colo-lost-heartbeat' } + +## # @MouseInfo: # # Information about a mouse device. |