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https://issues.apache.org/jira/browse/KYLIN-3742?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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XiaoXiang Yu updated KYLIN-3742:
--------------------------------
Description:
DataRequest send to Streaming Receiver is cannot be deserialized successfully
because of
ParameterDesc's equals method throw a NPE for field null +_colRef._+
1. This Receiver Server 's error log.
!image-2018-12-26-19-25-31-341.png!
2. Normal JSON
!image-2018-12-26-19-29-13-404.png!
3. Spring MVC will try to json string into DataRequest.mertics, it is a Set.
!image-2018-12-26-19-38-10-451.png!
4. HashSet use equal method to distinct entry. But equals method will throw NPE.
!image-2018-12-26-19-39-19-039.png!
was:
DataRequest send to Streaming Receiver is cannot be deserialized successfully
because of
ParameterDesc's equals method throw a NPE for field null +_colRef._+
!image-2018-12-26-19-25-31-341.png!
2. Normal JSON
!image-2018-12-26-19-29-13-404.png!
3. Spring MVC will try to json string into DataRequest.mertics, it is a Set.
!image-2018-12-26-19-38-10-451.png!
4. HashSet use equal method to distinct entry. But equals method will throw NPE.
!image-2018-12-26-19-39-19-039.png!
> DataRequest fail to deserialized
> ---------------------------------
>
> Key: KYLIN-3742
> URL: https://issues.apache.org/jira/browse/KYLIN-3742
> Project: Kylin
> Issue Type: Bug
> Components: Streaming
> Reporter: XiaoXiang Yu
> Assignee: XiaoXiang Yu
> Priority: Critical
> Attachments: image-2018-12-26-19-25-31-341.png,
> image-2018-12-26-19-26-44-418.png, image-2018-12-26-19-27-15-397.png,
> image-2018-12-26-19-29-13-404.png, image-2018-12-26-19-38-10-451.png,
> image-2018-12-26-19-39-19-039.png
>
>
> DataRequest send to Streaming Receiver is cannot be deserialized successfully
> because of
> ParameterDesc's equals method throw a NPE for field null +_colRef._+
> 1. This Receiver Server 's error log.
> !image-2018-12-26-19-25-31-341.png!
>
>
> 2. Normal JSON
> !image-2018-12-26-19-29-13-404.png!
>
>
> 3. Spring MVC will try to json string into DataRequest.mertics, it is a Set.
>
> !image-2018-12-26-19-38-10-451.png!
>
> 4. HashSet use equal method to distinct entry. But equals method will throw
> NPE.
>
> !image-2018-12-26-19-39-19-039.png!
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