Scenarios Explaining Custom Service Health Check
The following are some scenarios that can help you understand the concepts behind Custom Service Health Check.
Scenario 1
In this scenario, only
J2
has an annotated Service Health Check operation.
If a Service Health Check request is invoked on S1 with
hops=1
, the response generated is:
S1
(Base Service Health Check response) -> J1
(Base Service Health Check response) ->
J2
(Base Service Health Check response plus Custom Service Health Check response).
Scenario 2
In this scenario, only
J4
has an annotated Service Health Check operation.
If Service Health Check request is invoked on
S1
with
hops=2
, the response generated is:
S1
(Base Service Health Check response) ->
J1
(Base Service Health Check response) ->
J2
(Base Service Health Check response) ->
R1
(Base Service Health Check response) ->
S2
(Base Service Health Check response) ->J4
(Base Service Health Check response plus Custom Service Health Check response).
Scenario 3
In this scenario, only
J2
has an annotated Service Health Check operation.
If a Service Health Check request is invoked on
S1
with
hops=2
, the response generated is:
Scenario 4
J2
has an annotated Service Health Check operation.
If a Service Health Check request is invoked on
S1
with
hops=2
, the response generated is:
As
J4
is reachable from two paths, the
J4
Service Health Check response is added twice in the final Service Health Check Response.
Scenario 5 (Timeout)
In this scenario,
J2
and
J3
have annotated Service Health Check operations.
If a Service Health Check request is invoked on
S1
with
hops=2
and the time required by
J3
for execution of Service Health Check operation is more than the time allotted to it, the response generated is: