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From "Sandeep Tata (JIRA)" <j...@apache.org>
Subject [jira] Updated: (CASSANDRA-195) Improve bootstrap algorithm
Date Fri, 14 Aug 2009 00:56:14 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-195?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Sandeep Tata updated CASSANDRA-195:
-----------------------------------

    Attachment: 195-v3-delta1.patch

This applies after 195-v3.


> Improve bootstrap algorithm
> ---------------------------
>
>                 Key: CASSANDRA-195
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-195
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Core
>         Environment: all
>            Reporter: Sandeep Tata
>            Assignee: Sandeep Tata
>             Fix For: 0.5
>
>         Attachments: 195-v1.patch, 195-v2.patch, 195-v3-delta1.patch, 195-v3.patch
>
>
> When you add a node to an existing cluster and the map gets updated, the new node may
respond to read requests by saying it doesn't have any of the data until it gets the data
from the node(s) the previously owned this range (the load-balancing code, when working properly
can take care of this). While this behaviour is compatible with eventual consistency, it would
be much friendlier for the new node not to "surface" in the EndPoint maps for reads until
it has transferred the data over from the old nodes.

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