cassandra-commits mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Jonathan Ellis (JIRA)" <j...@apache.org>
Subject [jira] Commented: (CASSANDRA-825) Create an additional system keyspace to store KS definitions and migration data.
Date Thu, 04 Mar 2010 14:15:27 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-825?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12841275#action_12841275
] 

Jonathan Ellis commented on CASSANDRA-825:
------------------------------------------

each segment has a header w/ a name -> id map [currently you have id -> name but just
make it a BiMap] so you use that to get the id for the RM cfname.

either way we need to change Table.apply to take a Map<name, id> representing what the
mapping was at the time of the RM so it can put it in the right CFS [not necessarily in this
patchset].  I'm saying it's simpler to just use the one you already have in the CLH than build
one up laboriously from binary-searched timestams.

> Create an additional system keyspace to store KS definitions and migration data.
> --------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-825
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-825
>             Project: Cassandra
>          Issue Type: Sub-task
>          Components: Core
>            Reporter: Gary Dusbabek
>            Assignee: Gary Dusbabek
>            Priority: Minor
>             Fix For: 0.7
>
>         Attachments: v2-0001-CASSANDRA-825-use-jug-for-TimeUUID-generation.txt, v2-0002-dump-and-load-definition-tables.txt,
v2-0003-make-KSMetaData-immutable.txt, v2-0004-push-cfid-generation-down-into-CFMetaData-getting-rid-.txt,
v2-0005-support-for-serializing-historical-cf-names.txt
>
>
> Create an additional system keyspace to store KS definitions and migration data. 
> Tweak the internals so cassandra can optional load all definitions from there, ignoring
CF definitions in the xml.

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.


Mime
View raw message