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Posted to dev@knox.apache.org by "Phil Zampino (JIRA)" <ji...@apache.org> on 2018/02/28 00:11:00 UTC
[jira] [Resolved] (KNOX-1184) [Service Discovery] Atlas endpoint
url is not updated properly in the generated topology
[ https://issues.apache.org/jira/browse/KNOX-1184?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Phil Zampino resolved KNOX-1184.
--------------------------------
Resolution: Not A Bug
> [Service Discovery] Atlas endpoint url is not updated properly in the generated topology
> ----------------------------------------------------------------------------------------
>
> Key: KNOX-1184
> URL: https://issues.apache.org/jira/browse/KNOX-1184
> Project: Apache Knox
> Issue Type: Bug
> Affects Versions: 0.14.0
> Environment: knox proxy and service discovery enabled
> Reporter: J.Andreina
> Assignee: Phil Zampino
> Priority: Major
> Fix For: 1.1.0
>
>
> Service discovery:
> Verified knox proxy feature through the generated topology file from service discovery feature
> *Expectation:*
> *=========*
> Generated topology file should have only the active atlas endpoint url , as HaProvider for atlas is not yet supported
> when we access atlas through knox proxy, should'nt expose the atlas ip and port information.
> {color:#FF0000}*Actual:*{color}
> {color:#FF0000}*=====*{color}
> Generated topology has both passive and active url for "ATLAS" service and passive url for "ATLAS-API" service.
> Hence accessing atlas through knox proxy redirects me to the atlas active endpoint url, hence knox proxy fails.
> Explained the failure case in scenario 1 below
> Environment:
> ============
> Atlas has 2 host
> host1 - acive_host
> host2 - passive_host
> {color:red}Scenario 1:
> ==========={color}
> Generated topology using service discovery feature
> {noformat}
> <service>
> <role>ATLAS</role>
> <url>http://{color:#FF0000}host2{color}:21000</url>
> <url>http://host1:21000</url>
> </service>
> <service>
> <role>ATLAS-API</role>
> <url>http://{color:#FF0000}host2{color}:21000</url>
> </service>
> {noformat}
> Here accessing the atlas through knox proxy redirects me to active atlas host1 url
> {color:#d04437}accessing url : https://<gateway-host>:8443/gateway/ui/atlas
> redirected url : http:/host1:21000/login.jsp{color}
> {color:#14892c}Scenario 2:
> =============={color}
> when i manually modified the atlas endpoint to only active url in generated topology file then the knox proxy works fine
> {noformat}
> </gateway>
> <service>
> <role>ATLAS</role>
> <url>http://host1:21000</url>
> </service>
> <service>
> <role>ATLAS-API</role>
> <url>http://host1:21000</url>
> </service>
> {noformat}
> {color:#14892c}accessing url : https://gateway-host:8443/gateway/ui/atlas
> redirected url: https://gateway-host:8443/gateway/ui/atlas/login.jsp{color}
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