[jira] [Updated] (KNOX-643) Add the ability to gather and expose metrics in the gateway

["Sumit Gupta (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/KNOX-643?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sumit Gupta updated KNOX-643:
-----------------------------
    Attachment: KNOX-643.patch

Initial API and implementation.

> Add the ability to gather and expose metrics in the gateway
> -----------------------------------------------------------
>
>                 Key: KNOX-643
>                 URL: https://issues.apache.org/jira/browse/KNOX-643
>             Project: Apache Knox
>          Issue Type: New Feature
>          Components: Server
>    Affects Versions: 0.8.0
>            Reporter: Sumit Gupta
>            Assignee: Sumit Gupta
>             Fix For: Future
>
>         Attachments: KNOX-643.patch
>
>
> The goal would be to capture various request/response metrics in the gateway and expose them via JMX and/or REST.
> Some of the requests on the dev mailing list are:
> - Capture TPS both at the service level as well as aggregate for the server instance.
> - Byte transfer counts per service and aggregate
> - Unsuccessful login
> - Successful login but overall return was HTTP 500 which indicates failure
> on the cluster side.  An example would be users connecting to Knox with
> valid AD user/pass but which were not authorized in the cluster.  This can
> happen when the cluster is in secure mode but a service like Centrify has
> not allowed the user into the cluster's zone.
> - Unsuccessful AD lookup by Knox - user doesn't exist.
> - Connection counts that used and didn't use an auth cookie and resulted in
> an AD lookup
> - Current open connections 
> - Capability to reset the aggregate counters while Knox is running.
> - Ability to hook into Ambari's Metric collection framework.



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