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From "Jonathan Ellis (JIRA)" <j...@apache.org>
Subject [jira] Commented: (CASSANDRA-213) complete bootstrap code
Date Mon, 03 Aug 2009 18:19:14 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-213?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12738475#action_12738475
] 

Jonathan Ellis commented on CASSANDRA-213:
------------------------------------------

this is the right thing to do though -- eventually, we want to have a --bootstrap-myself option
to start a new node, so it immediately goes into bootstrap mode (including waiting a minute
or so for a stable map) instead of participating immediately and serving up incorrect "no,
there's no data for that key" replies.

yes, this means it's slightly less straightforward to split a single existing node across
multiple new nodes in a single boostrap operation, but (a) the code isn't designed to do that
anyway so I don't see that as giving up much and (b) if we really need this it's easy to add
a delay on the existing node to wait a few seconds to see if more than one node wants to be
be a target.

the common op is "I'm adding a group of nodes mixed around the ring" so let's optimize for
that and make it as foolproof as possible.

> complete bootstrap code
> -----------------------
>
>                 Key: CASSANDRA-213
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-213
>             Project: Cassandra
>          Issue Type: New Feature
>          Components: Core
>            Reporter: Jonathan Ellis
>            Assignee: Sandeep Tata
>            Priority: Critical
>             Fix For: 0.4
>
>         Attachments: 213-v1.patch, 213-v2.patch, 213-v3-addendum.patch, 213-v3.patch
>
>
> The bootstrap code sends files from DatabaseDescriptor.getBootstrapFileLocation to the
node that is joining the ring, but nothing actually puts files into that directory.
> There are probably other bugs / omissions we will find as we flesh this out.

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