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Posted to yarn-dev@hadoop.apache.org by "Varun Saxena (JIRA)" <ji...@apache.org> on 2015/06/29 12:28:04 UTC

[jira] [Created] (YARN-3862) Decide which contents to retrieve and send back in response in TimelineReader

Varun Saxena created YARN-3862:
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             Summary: Decide which contents to retrieve and send back in response in TimelineReader
                 Key: YARN-3862
                 URL: https://issues.apache.org/jira/browse/YARN-3862
             Project: Hadoop YARN
          Issue Type: Bug
          Components: timelineserver
    Affects Versions: YARN-2928
            Reporter: Varun Saxena
            Assignee: Varun Saxena


Currently, we will retrieve all the contents of the field if that field is specified in the query API. In case of configs and metrics, this can become a lot of data even though the user doesn't need it. So we need to provide a way to query only a set of configs or metrics.

As a comma spearated list of configs/metrics to be returned will be quite cumbersome to specify, we have to support either of the following options :
# Prefix match
# Regex
# Group the configs/metrics and query that group.

We also need a facility to specify a metric time window to return metrics in a that window. This may be useful in plotting graphs 




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