On 06/03/2018 12:05 AM, Zhang Chen wrote:
From: zhanghailiang <zhang.zhanghaili...@huawei.com>
If some errors happen during VM's COLO FT stage, it's important to
notify the users of this event. Together with 'x-colo-lost-heartbeat',
Users can intervene in COLO's failover work immediately.
If users don't want to get involved in COLO's failover verdict,
it is still necessary to notify users that we exited COLO mode.
Signed-off-by: zhanghailiang <zhang.zhanghaili...@huawei.com>
Signed-off-by: Li Zhijian <lizhij...@cn.fujitsu.com>
Signed-off-by: Zhang Chen <zhangc...@gmail.com>
Reviewed-by: Eric Blake <ebl...@redhat.com>
---
migration/colo.c | 31 +++++++++++++++++++++++++++++++
qapi/migration.json | 38 ++++++++++++++++++++++++++++++++++++++
2 files changed, 69 insertions(+)
diff --git a/migration/colo.c b/migration/colo.c
index c083d3696f..bedb677788 100644
--- a/migration/colo.c
+ /*
+ * There are only two reasons we can go here, some error happened.
+ * Or the user triggered failover.
s/go here/get here/
s/happened. Or/happened, or/
+++ b/qapi/migration.json
@@ -880,6 +880,44 @@
{ 'enum': 'FailoverStatus',
'data': [ 'none', 'require', 'active', 'completed', 'relaunch' ] }
+##
+# @COLO_EXIT:
+#
+# Emitted when VM finishes COLO mode due to some errors happening or
+# at the request of users.
+#
+# @mode: report COLO mode when COLO exited.
+#
+# @reason: describes the reason for the COLO exit.
+#
+# Since: 2.13
s/2.13/3.0/
+#
+# Example:
+#
+# <- { "timestamp": {"seconds": 2032141960, "microseconds": 417172},
+# "event": "COLO_EXIT", "data": {"mode": "primary", "reason": "request" }
}
+#
+##
+{ 'event': 'COLO_EXIT',
+ 'data': {'mode': 'COLOMode', 'reason': 'COLOExitReason' } }
+
+##
+# @COLOExitReason:
+#
+# The reason for a COLO exit
+#
+# @none: no failover has ever happened, This can't occur in the COLO_EXIT
event,
s/happened,/happened./
+# only in the result of query-colo-status.
+#
+# @request: COLO exit is due to an external request
+#
+# @error: COLO exit is due to an internal error
+#
+# Since: 2.13
s/2.13/3.0/
+##
+{ 'enum': 'COLOExitReason',
+ 'data': [ 'none', 'request', 'error' ] }
+
##
# @x-colo-lost-heartbeat:
#
--
Eric Blake, Principal Software Engineer
Red Hat, Inc. +1-919-301-3266
Virtualization: qemu.org | libvirt.org
