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From "Marcus Eriksson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-5901) Bootstrap should also make the data consistent on the new node
Date Fri, 03 Aug 2018 12:06:00 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-5901?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16568138#comment-16568138
] 

Marcus Eriksson commented on CASSANDRA-5901:
--------------------------------------------

So finally got back to this, pushed an updated version here: https://github.com/krummas/cassandra/commits/marcuse/5901

Regarding configuration, I changed it to be {{none/dc_local/global}}, and they map to {{ANY/LOCAL_QUORUM/QUORUM}}.
{{ConsistencyLevel}} is still used internally for {{blockFor}} calculations etc. 

I also kept the possibility to override for specific keyspaces if some user wants to enable
this on a per-keyspace basis.

It disables consistent bootstrap for RF = 2 since we either bootstrap with all replicas up
and then we end up consistent (CASSANDRA-2434) or we bootstrap with a node down and then we
can only stream from a single replica anyway and can't get a consistent bootstrap.

dtests: https://github.com/krummas/cassandra-dtest/commits/marcuse/5901
circle: https://circleci.com/gh/krummas/cassandra/tree/marcuse%2F5901


> Bootstrap should also make the data consistent on the new node
> --------------------------------------------------------------
>
>                 Key: CASSANDRA-5901
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-5901
>             Project: Cassandra
>          Issue Type: Improvement
>            Reporter: sankalp kohli
>            Assignee: Marcus Eriksson
>            Priority: Minor
>             Fix For: 4.x
>
>
> Currently when we are bootstrapping a new node, it might bootstrap from a node which
does not have most upto date data. Because of this, we need to run a repair after that.
> Most people will always run the repair so it would help if we can provide a parameter
to bootstrap to run the repair once the bootstrap has finished. 
> It can also stop the node from responding to reads till repair has finished. This could
be another param as well. 



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