[jira] [Commented] (CASSANDRA-1311) Triggers

["Arpit Gupta (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CASSANDRA-1311?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17140970#comment-17140970 ] 

Arpit Gupta commented on CASSANDRA-1311:
----------------------------------------

Is there any proper documentation of triggers available? If not can someone explain how they actually function, I mean from the time client makes a write request to when the mutation is applied to coordinator and replica nodes? 

> Triggers
> --------
>
>                 Key: CASSANDRA-1311
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-1311
>             Project: Cassandra
>          Issue Type: New Feature
>            Reporter: Maxim Grinev
>            Assignee: Vijay
>            Priority: Normal
>             Fix For: 2.0 beta 1
>
>         Attachments: 0001-1311-v3.patch, HOWTO-PatchAndRunTriggerExample-update1.txt, HOWTO-PatchAndRunTriggerExample.txt, ImplementationDetails-update1.pdf, ImplementationDetails.pdf, trunk-967053.txt, trunk-984391-update1.txt, trunk-984391-update2.txt
>
>
> Asynchronous triggers is a basic mechanism to implement various use cases of asynchronous execution of application code at database side. For example to support indexes and materialized views, online analytics, push-based data propagation.
> Please find the motivation, triggers description and list of applications:
> http://maxgrinev.com/2010/07/23/extending-cassandra-with-asynchronous-triggers/
> An example of using triggers for indexing:
> http://maxgrinev.com/2010/07/23/managing-indexes-in-cassandra-using-async-triggers/
> Implementation details are attached.



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