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https://issues.apache.org/jira/browse/KNOX-2157?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sandor Molnar resolved KNOX-2157.
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Resolution: Fixed
> 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: 1.1.0, 1.2.0, 1.3.0
> Reporter: Sandor Molnar
> Assignee: Sandor Molnar
> Priority: Major
> Fix For: 1.4.0
>
> Time Spent: 1h 40m
> Remaining Estimate: 0h
>
> 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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