GitHub user zentol opened a pull request:
https://github.com/apache/flink/pull/2615
[FLINK-4772] [FLINK-4775] Metric Store enhancements
This PR changes a few things about the MetricStore class to make it easier
to work with.
* metrics are now stored as strings (Map<String, Object> => Map<String,
String>) since the differentiation only leads to cumbersome casts.
* sub-structures are no longer accessed directly but through helper
methods. This allows traversing several layers with a single call.
* finally, a simple getMetric(name, defaultValue) was added to easier
handle metrics that weren't updated yet (and potentially never will) and thus
would return null
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/zentol/flink 4772_4775_metric_store
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/2615.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #2615
----
commit a350abb5a16b35a11664f254574f6b192c6dca83
Author: zentol <[email protected]>
Date: 2016-10-07T08:11:31Z
[FLINK-4772] [metrics] Store metrics as strings in MetricStore
commit b9940c15bed2cb4fbe92be259826fa4ab560f629
Author: zentol <[email protected]>
Date: 2016-10-07T08:16:49Z
[FLINK-4775] [metrics] Simplify MetricStore access
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