[jira] [Commented] (IOTDB-6335) Redundant rows when using GROUP BY TIME with LIMIT

2024-06-02 Thread yang caiyin (Jira) 


[ 
https://issues.apache.org/jira/browse/IOTDB-6335?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17851489#comment-17851489
 ] 

yang caiyin commented on IOTDB-6335:


After analysis, the problem occurs due to the  bug in limit/offset push down to 
GroupBy parameter.
In the following logic, we want to calculate the new startTime after skip some 
points, but if size is smaller the size calculated, startTime will be negative 
which leads to problem.
!image-2024-06-03-11-26-32-473.png!

> Redundant rows when using GROUP BY TIME with LIMIT
> --
>
> Key: IOTDB-6335
> URL: https://issues.apache.org/jira/browse/IOTDB-6335
> Project: Apache IoTDB
>  Issue Type: Bug
>  Components: Core/Query
>Reporter: yang caiyin
>Assignee: yang caiyin
>Priority: Major
> Attachments: image-2024-06-03-11-26-32-473.png
>
>
> When using {{{}GROUP BY time + LIMIT{}}}, if the number of {{LIMIT}} exceeds 
> the number of existing time intervals, it will generate excess time intervals.



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[jira] [Created] (IOTDB-6336) Add configuration to control max retry count and whether to rety for unknown errors

2024-06-02 Thread Yuan Tian (Jira) 
Yuan Tian created IOTDB-6336:


 Summary: Add configuration to control max retry count and whether 
to rety for unknown errors
 Key: IOTDB-6336
 URL: https://issues.apache.org/jira/browse/IOTDB-6336
 Project: Apache IoTDB
  Issue Type: New Feature
  Components: Core/Engine
Reporter: Yuan Tian
Assignee: Yuan Tian
 Attachments: image-2024-06-03-11-04-09-651.png

Now when encountering dispatch error while sending write request to a remote 
datanode, we will retry while receiving the following TSStatusCode
!image-2024-06-03-11-04-09-651.png!

However, for some unknown errors like 301 and 305, we may not need to retry for 
it in some case.

 

And the max retry count is always 10(hard code), this number should also be 
changable in configuration file.

 

And we want both the above two new added confiugration can be hot loaded. 



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[jira] [Created] (IOTDB-6335) Redundant rows when using GROUP BY TIME with LIMIT

2024-06-02 Thread yang caiyin (Jira) 
yang caiyin created IOTDB-6335:
--

 Summary: Redundant rows when using GROUP BY TIME with LIMIT
 Key: IOTDB-6335
 URL: https://issues.apache.org/jira/browse/IOTDB-6335
 Project: Apache IoTDB
  Issue Type: Bug
  Components: Core/Query
Reporter: yang caiyin
Assignee: yang caiyin


When using {{{}GROUP BY time + LIMIT{}}}, if the number of {{LIMIT}} exceeds 
the number of existing time intervals, it will generate excess time intervals.



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