[ 
https://issues.apache.org/jira/browse/HIVE-25372?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17405326#comment-17405326
 ] 

Kishen Das commented on HIVE-25372:
-----------------------------------

Rest of DDLs will be addressed as part of 
https://issues.apache.org/jira/browse/HIVE-25407 

> [Hive] Advance write ID for remaining DDLs
> ------------------------------------------
>
>                 Key: HIVE-25372
>                 URL: https://issues.apache.org/jira/browse/HIVE-25372
>             Project: Hive
>          Issue Type: Sub-task
>          Components: HiveServer2
>            Reporter: Kishen Das
>            Assignee: Kishen Das
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 1.5h
>  Remaining Estimate: 0h
>
> We guarantee data consistency for table metadata, when serving data from the 
> HMS cache. HMS cache relies on Valid Write IDs to decide whether to serve 
> from cache or refresh from the backing DB and serve, so we have to ensure we 
> advance write IDs during all alter table flows. We have to ensure we advance 
> the write ID for below DDLs.
> AlterTableSetOwnerAnalyzer.java 
>  -AlterTableSkewedByAnalyzer.java-
>  AlterTableSetSerdeAnalyzer.java
>  AlterTableSetSerdePropsAnalyzer.java
>  -AlterTableUnsetSerdePropsAnalyzer.java-
>  AlterTableSetPartitionSpecAnalyzer
>  AlterTableClusterSortAnalyzer.java
>  AlterTableIntoBucketsAnalyzer.java
>  AlterTableConcatenateAnalyzer.java
>  -AlterTableCompactAnalyzer.java-
>  AlterTableSetFileFormatAnalyzer.java
>  -AlterTableSetSkewedLocationAnalyzer.java-



--
This message was sent by Atlassian Jira
(v8.3.4#803005)

Reply via email to