Sandor Molnar created KNOX-2157:
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Summary: Knox should check if it's actually up&running
Key: KNOX-2157
URL: https://issues.apache.org/jira/browse/KNOX-2157
Project: Apache Knox
Issue Type: New Feature
Components: Server
Affects Versions: 1.3.0, 1.2.0, 1.1.0
Reporter: Sandor Molnar
Assignee: Sandor Molnar
Fix For: 1.4.0
As of now, Knox returns a success code in case the process is being created.
There should be another way to check if the server is actually up&running and
is capable of serving incoming requests.
My proposal is:
* the Knox startup script should be modified to run a basic Admin API check in
case {{--test-gateway-url}} is defined in the startup command. If this is blank
or non-defined we fallback to the existing PID-based check
* two more optional arguments will be defined for this feature:
** {{--test-gateway-retry-attempts}}: indicates the number of tries the
startup script should execute before it fails. Defaults to 5.
** {{--test-gateway-retry-sleep}}: the amount of time that the test process
will wait or sleep before a retry is issued. Defaults to 2s.
The new-style check will use {{curl}} and will return success in case
{{$GATEWAY_TEST_URL/gateway/admin/api/v1/version/}} returns an HTTP response
with code 200. If this is not true; the startup script should return an error
code.
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