[
https://issues.apache.org/jira/browse/YARN-3862?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14697663#comment-14697663
]
Varun Saxena commented on YARN-3862:
------------------------------------
bq. My feeling is that the concept of timeline filter may become a part of our
object model, so that client users can easily communicate?
Do we want to expose it to the client ? Suggestion sounds good. That wasnt the
plan but if everyone agrees, lets have it that way.
bq. are we treating our timeline filters as pure-data objects (models)
Yes I am as of now treating them as pure data objects. That is why instead of
using polymorphism and converting the filter to HBase Filter by providing a
method for conversion in the filter class(es), I kept the conversion in util
class. The intention was to decouple filters from storage implementation.
bq. is it easy, or possible, for us to implement a "paging filter"?
Will look into it.
> 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
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
