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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 Wed, 03 Mar 2010 17:08:27 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-825?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12840733#action_12840733
] 

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

JUG also provides a native library for getting the mac address.  I'm -1 on putting mac in
the config since it completely screws the ability to run a cluster from a common file.  If
we can't get the mac from native code on platform X, or if it's painful, then let's make something
up and use it as the mac bytes.  For our purposes one pseudo-unique set of bytes in the MAC
positions is as good as another.

> 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-TimeUUID-generation-and-tests.patch, v2-0002-add-MacAddress-to-config.patch,
v2-0003-dump-and-load-definition-tables.patch, v2-0004-make-KSMetaData-immutable.patch, v2-0005-push-cfid-generation-down-into-CFMetaData-getting-ri.patch,
v2-0006-support-for-serializing-historical-cf-names.patch
>
>
> 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.

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