phoenix-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "James Taylor (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (PHOENIX-4229) Parent-Child linking rows in System.Catalog break tenant view replication
Date Wed, 11 Oct 2017 03:47:00 GMT

    [ https://issues.apache.org/jira/browse/PHOENIX-4229?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16199767#comment-16199767
] 

James Taylor commented on PHOENIX-4229:
---------------------------------------

Ah, I get in now (finally). Thanks for the explanation. So we're replicating more, not less.
Specifically, we'll replicate the child linking rows for global tables and views where before
we would have missed them. Let's please add some class level documentation to SystemCatalogWALEntryFilter
so we don't forget.

> Parent-Child linking rows in System.Catalog break tenant view replication
> -------------------------------------------------------------------------
>
>                 Key: PHOENIX-4229
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-4229
>             Project: Phoenix
>          Issue Type: Bug
>    Affects Versions: 4.11.0, 4.12.0
>            Reporter: Geoffrey Jacoby
>            Assignee: Geoffrey Jacoby
>             Fix For: 4.13.0
>
>         Attachments: PHOENIX-4229-v2.patch, PHOENIX-4229.patch
>
>
> PHOENIX-2051 introduced new Parent-Child linking rows to System.Catalog that speed up
view deletion. Unfortunately, this breaks assumptions in PHOENIX-3639, which gives a way to
replicate tenant views from one cluster to another. (It assumes that all the metadata for
a tenant view is owned by the tenant -- the linking rows are not.) 
> PHOENIX-3639 was a workaround in the first place to the more fundamental design problem
that Phoenix places the metadata for both table schemas -- which should never be replicated
-- in the same table and column family as the metadata for tenant views, which should be replicated.

> Note that the linking rows also make it more difficult to ever split these two datasets
apart, as proposed in PHOENIX-3520.



--
This message was sent by Atlassian JIRA
(v6.4.14#64029)

Mime
View raw message