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https://issues.apache.org/jira/browse/YUNIKORN-2730?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kuan Po Tseng updated YUNIKORN-2730:
------------------------------------
    Description: 
{code:java}
/ws/v1/events/batch
{code}
will return null EventRecores if start argument can't fetch any record,
For example, if I specify start=268 which is larger than HighestID, the 
EventRecords is null, it seems to me returning an empty array might be better.
{code:java}
➜ brandboat@suse  ~/Code/yunikorn  curl -L 
http://localhost:9889/ws/v1/events/batch\?start\=268\&count\=2 | jq
{code}
{code:java}
{
  "InstanceUUID": "c3dd83f9-6546-4c63-b4cb-622cbb081aa3",
  "LowestID": 0,
  "HighestID": 267,
  "EventRecords": null
} {code}
 

 

  was:
 
{code:java}
/ws/v1/events/batch
{code}
will return null EventRecores if start argument can't fetch any record,
For example, if I specify start=268 which is larger than HighestID, the 
EventRecords is null, it seems to me returning an empty array might be better.

 

 
{code:java}
➜ brandboat@suse  ~/Code/yunikorn  curl -L 
http://localhost:9889/ws/v1/events/batch\?start\=268\&count\=2 | jq
{code}
{code:java}
{
  "InstanceUUID": "c3dd83f9-6546-4c63-b4cb-622cbb081aa3",
  "LowestID": 0,
  "HighestID": 267,
  "EventRecords": null
} {code}
 

 


> Using empty array to replace null EventRecords from /ws/v1/events/batch
> -----------------------------------------------------------------------
>
>                 Key: YUNIKORN-2730
>                 URL: https://issues.apache.org/jira/browse/YUNIKORN-2730
>             Project: Apache YuniKorn
>          Issue Type: Improvement
>          Components: core - scheduler
>            Reporter: Kuan Po Tseng
>            Priority: Minor
>
> {code:java}
> /ws/v1/events/batch
> {code}
> will return null EventRecores if start argument can't fetch any record,
> For example, if I specify start=268 which is larger than HighestID, the 
> EventRecords is null, it seems to me returning an empty array might be better.
> {code:java}
> ➜ brandboat@suse  ~/Code/yunikorn  curl -L 
> http://localhost:9889/ws/v1/events/batch\?start\=268\&count\=2 | jq
> {code}
> {code:java}
> {
>   "InstanceUUID": "c3dd83f9-6546-4c63-b4cb-622cbb081aa3",
>   "LowestID": 0,
>   "HighestID": 267,
>   "EventRecords": null
> } {code}
>  
>  



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