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From "Aleksey Yeschenko (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (CASSANDRA-9041) Allow a PerRowSecondaryIndex to perform its index operation before the underlying data has been mutated
Date Tue, 11 Aug 2015 17:23:46 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-9041?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Aleksey Yeschenko resolved CASSANDRA-9041.
------------------------------------------
    Resolution: Duplicate

Closing as {{Duplicate}}, as it's fully contained by CASSANDRA-9459.

> Allow a PerRowSecondaryIndex to perform its index operation before the underlying data
has been mutated
> -------------------------------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-9041
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-9041
>             Project: Cassandra
>          Issue Type: New Feature
>          Components: Core
>            Reporter: Bryn Cooke
>            Assignee: Sam Tunnicliffe
>             Fix For: 3.0 beta 1
>
>
> The current PerRowSecondaryIndex receives its index event after the call to BTree.update.
This means that it is impossible to write an index that eagerly removes stale index entries.
> It would be great to have some sort of preIndex method that gets called with the key
and column family.
> In addition a postIndex method that is guaranteed to get called regardless if the actual
BTree operation succeeds or not would allow cleanup in the event of error. 



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