You are viewing a plain text version of this content. The canonical link for it is here.
Posted to issues-all@impala.apache.org by "Yu-Wen Lai (Jira)" <ji...@apache.org> on 2022/02/18 02:09:00 UTC
[jira] [Resolved] (IMPALA-10923) Fine grained table refreshing at partition level events for transactional tables
[ https://issues.apache.org/jira/browse/IMPALA-10923?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Yu-Wen Lai resolved IMPALA-10923.
---------------------------------
Fix Version/s: Impala 4.1.0
Target Version: Impala 4.1.0
Resolution: Fixed
> Fine grained table refreshing at partition level events for transactional tables
> --------------------------------------------------------------------------------
>
> Key: IMPALA-10923
> URL: https://issues.apache.org/jira/browse/IMPALA-10923
> Project: IMPALA
> Issue Type: Improvement
> Components: Catalog
> Reporter: Yu-Wen Lai
> Assignee: Yu-Wen Lai
> Priority: Major
> Fix For: Impala 4.1.0
>
>
> For ensuring the transactional tables are consistent, we currently take whole table refreshing even a change is just for a partition only. That is too expensive and possibly make event processing has a longer delay.
> To enable fine-grained table refreshing, there are three main changes in this proposal.
> # maintain validWriteIdList in Catalogd for transactional tables. We will track write id changes by AllocWriteIdEvents, CommitTxnEvents, and AbortTxnEvents.
> # trigger partition level refreshing for addPartitionEvents, dropPartitionEvents, and AlterPartitionEvents.
> # Introduce a config *incremental_refresh_acid*, which can switch on/off the fine-grained table refreshing
--
This message was sent by Atlassian Jira
(v8.20.1#820001)
---------------------------------------------------------------------
To unsubscribe, e-mail: issues-all-unsubscribe@impala.apache.org
For additional commands, e-mail: issues-all-help@impala.apache.org