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Posted to issues@kudu.apache.org by "ASF subversion and git services (Jira)" <ji...@apache.org> on 2020/06/25 19:58:00 UTC

[jira] [Commented] (KUDU-2612) Implement multi-row transactions

    [ https://issues.apache.org/jira/browse/KUDU-2612?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17145802#comment-17145802 ] 

ASF subversion and git services commented on KUDU-2612:
-------------------------------------------------------

Commit 396b70b24b80b1b0b362910e56e4da3f09c441e0 in kudu's branch refs/heads/master from Andrew Wong
[ https://gitbox.apache.org/repos/asf?p=kudu.git;h=396b70b ]

KUDU-2612 p1: add initial transaction status storage

This adds a system tablet storage API for storing the status of
transactions, in the form of the newly added TxnStatusTablet which is a
wrapper around a TabletReplica with a schema tailored for storing
transaction metadata.

The abstraction is comparable to the SysCatalogTable abstraction used by
the master to store metadata about the Kudu catalog, but rather than
storing metadata about tables and tablets, the TxnStatusTablet stores
metadata about transactions and transaction participants.

Partitioning isn't addressed in this patch, but I'm expecting later
patches to allow for the creation of partitioned transaction status
tables, and having the individual tablet replicas of that table be
accessed via this TxnStatusTablet API.

This patch only introduces the schema, basic write calls, and scan calls
to be used by a transaction management entity to be added in a later
patch. There is currently no way to create or define partitions for
TxnStatusTablets on tablet servers.

Change-Id: I94ddbd37c65932120835d6e138307f819935173c
Reviewed-on: http://gerrit.cloudera.org:8080/16043
Reviewed-by: Attila Bukor <ab...@apache.org>
Reviewed-by: Alexey Serbin <as...@cloudera.com>
Tested-by: Andrew Wong <aw...@cloudera.com>


> Implement multi-row transactions
> --------------------------------
>
>                 Key: KUDU-2612
>                 URL: https://issues.apache.org/jira/browse/KUDU-2612
>             Project: Kudu
>          Issue Type: Task
>            Reporter: Mike Percy
>            Priority: Major
>              Labels: roadmap-candidate
>
> Tracking Jira to implement multi-row / multi-table transactions in Kudu.



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