Greg Padgett has uploaded a new change for review. Change subject: agent: add agent fsm diagram source ......................................................................
agent: add agent fsm diagram source Add README.AGENT-FSM.gv file containing graphviz source for HA agent FSM. Change-Id: I82522e53dda7ab247801634f7ef34f9bdb0e8f3a Signed-off-by: Greg Padgett <gpadg...@redhat.com> --- A README.AGENT-FSM.gv 1 file changed, 42 insertions(+), 0 deletions(-) git pull ssh://gerrit.ovirt.org:29418/ovirt-hosted-engine-ha refs/changes/36/19536/1 diff --git a/README.AGENT-FSM.gv b/README.AGENT-FSM.gv new file mode 100644 index 0000000..a44c8c0 --- /dev/null +++ b/README.AGENT-FSM.gv @@ -0,0 +1,42 @@ +/** + * This file contains the source for a graphviz FSM diagram of the HA agent + * state machine. To create an image, fsm.png in this case, run the following: + * + * dot README.AGENT-FSM.gv -Tpng -o fsm.png + * + * A copy of the latest diagram should be available at: + * + * http://www.ovirt.org/Features/Self_Hosted_Engine#Agent_State_Diagram + */ + +digraph finite_state_machine { + //rankdir=LR; + ranksep = 0.3; + //size = "8,5" + node [shape = doublecircle]; ENTRY; + node [shape = circle]; OFF START ON STOP MIGRATE; + + ENTRY -> OFF [ label = "VM down locally" ]; + ENTRY -> ON [ label = "VM up \nlocally " ]; + + OFF -> OFF [ label = "VM down locally" ]; + OFF -> ON [ label = "VM unexpectedly \nrunning locally " ]; + OFF -> START [ label = "VM down \nglobally, host has \nhighest score " ]; + + START -> OFF [ label = "VM startup \nfailed " ]; + START -> ON [ label = "VM powered on" ]; + + ON -> ON [ label = "VM up locally" ]; + ON -> OFF [ label = "VM died \nunexpectedly " ]; + ON -> MIGRATE [ label = "VM up locally, \nother host has \nmuch better score " ]; + ON -> STOP [ label = "VM timed out \nwith bad health \nstatus " ]; + + STOP -> STOP [ label = "VM shutdown\nin progress" ]; + STOP -> OFF [ label = "VM shutdown\nsuccessful" ]; + STOP -> ENTRY [ label = "VM failed to stop,\nunknown state" ]; + + MIGRATE -> MIGRATE [ label = "VM migration\nin progress" ]; + MIGRATE -> OFF [ label = "VM migration\nsuccessful" ]; + MIGRATE -> STOP [ label = "VM migration\nfailed" ]; +} + -- To view, visit http://gerrit.ovirt.org/19536 To unsubscribe, visit http://gerrit.ovirt.org/settings Gerrit-MessageType: newchange Gerrit-Change-Id: I82522e53dda7ab247801634f7ef34f9bdb0e8f3a Gerrit-PatchSet: 1 Gerrit-Project: ovirt-hosted-engine-ha Gerrit-Branch: master Gerrit-Owner: Greg Padgett <gpadg...@redhat.com> _______________________________________________ Engine-patches mailing list Engine-patches@ovirt.org http://lists.ovirt.org/mailman/listinfo/engine-patches
