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From "Chesnay Schepler (JIRA)" <j...@apache.org>
Subject [jira] [Created] (FLINK-5419) Taskmanager metrics not accessible via REST
Date Fri, 06 Jan 2017 13:01:58 GMT
Chesnay Schepler created FLINK-5419:

             Summary: Taskmanager metrics not accessible via REST
                 Key: FLINK-5419
                 URL: https://issues.apache.org/jira/browse/FLINK-5419
             Project: Flink
          Issue Type: Bug
          Components: Metrics, Webfrontend
    Affects Versions: 1.2.0, 1.3.0
            Reporter: Chesnay Schepler
            Priority: Blocker
             Fix For: 1.2.0, 1.3.0

There is currently a URL clash between the TaskManagersHandler and TaskManagerMetricsHandler,
with both being routed to
As a result it is not possible to query the full set of metrics for a taskmanager, but only
the hard-coded subset that is displayed on the metrics tab on the taskmanager page.

This is a side-effect of 6d53bbc4b92e651786ecc8c2c6dfeb8e450a16a3 making the URL's more consistent.
The TaskManager page in the web-interface has 3 tabs: Metrics, Log and Stdout.

The URLs for these tabs are
which correspond to the REST URL's used. Previously, the metrics tab used {code}/taskmanager/<tmid>{code}

However, 70704de0c82cbb7b143dd696221e11999feb3600 then exposed the metrics gathered by the
metrics system through the REST API. The assumption was that general information for the taskmanagers
are retrieved via /taskmanager/<tmid>, similar to how the job-related URL's are structured,
which sadly isn't the case.

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