[jira] [Commented] (FALCON-166) Instance status start and end dates are rigid and inconvenient

["Karishma Gulati (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/FALCON-166?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14129823#comment-14129823 ] 

Karishma Gulati commented on FALCON-166:
----------------------------------------

These changes in default behaviours of start and end dates should apply to requests getting instance status, and not also  to APIs like kill and suspend. 
Raised a jira in this regard : https://issues.apache.org/jira/browse/FALCON-710

> Instance status start and end dates are rigid and inconvenient
> --------------------------------------------------------------
>
>                 Key: FALCON-166
>                 URL: https://issues.apache.org/jira/browse/FALCON-166
>             Project: Falcon
>          Issue Type: Sub-task
>          Components: webapp
>    Affects Versions: 0.3
>            Reporter: Venkatesh Seetharam
>            Assignee: Balu Vellanki
>             Fix For: 0.6
>
>         Attachments: Falcon-Jira-166-v1.patch, Falcon-Jira-166-v2.patch, Falcon-Jira-166-v3.patch, Falcon-Jira-166-v4.patch, Falcon-Jira-166.patch
>
>
> There are 2 annoying issues that was brought up by [~srimanth.gunturi] while working on FALCON-164. The use case is to get the status for a given entity for the past 1 or 2 or 3 or 7 days.
> 1. Instance status with out an end date fetches for a very small window
> Instance status take end date as optional but assumes one second from the start date which is too small a window.
> {code}
>     private Date getEndDate(Date start, String endStr) throws FalconException {
>         Date end;
>         if (StringUtils.isEmpty(endStr)) {
>             end = new Date(start.getTime() + 1000); // next sec
>         } else {
>             end = EntityUtil.parseDateUTC(endStr);
>         }
>         return end;
>     }
> {code}
> May be assuming the current time might be appropriate instead.
> 2. The start date has to be on or after the start of the entity.
> If the user has created the entity 2 days back but specified the start date for looking at the instances in the past 7 days, it should fetch what is valid rather than complain that the start date is before the entity's start.
> This is quite unwieldy to work with in a dashboard use case. I'm not sure what the performance impact is for this API to be changed.
> Thoughts? 



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