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https://issues.apache.org/jira/browse/YARN-3862?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14697654#comment-14697654
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Varun Saxena commented on YARN-3862:
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[~gtCarrera9], these 2 JIRAs' were raised separately to address following areas
:
# Enhance already supported filters (YARN-3863) to filter out rows of data. By
adding support for OR in addition to AND and relational ops for metrics. Scope
for this JIRA is pretty clear.
# Restrict the amount of data retrieved(from columns) in this JIRA. In this
JIRA, we actually wanted to have a discussion on what all we need to support.
Regex, prefix match , etc. Also whether we want to retrieve metrics by time
windows as well.
I am open to realigning these JIRAs' and distributing the work along the lines
of the workflow you mentioned above.
My only concern with deciding with a filter object model though will be that we
may take a lot of time deciding it to cover all the scenarios. Because support
for additional filters may come up during further discussion.
Let's do as per whatever is the consensus.
> 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: Sub-task
> Components: timelineserver
> Affects Versions: YARN-2928
> Reporter: Varun Saxena
> Assignee: Varun Saxena
> Attachments: YARN-3862-YARN-2928.wip.01.patch
>
>
> 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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