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https://issues.apache.org/jira/browse/CASSANDRA-1311?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13492891#comment-13492891
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Edward Capriolo commented on CASSANDRA-1311:
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Yes whenever you dynamic class load perm gen can be an issue. But likely the
loading and unloading is not going to be very common not as often as a JSP
compile for sure, so load and unload would likely not be a perm gen issue.
Yes DROP TRIGGER is good though.
> Triggers
> --------
>
> Key: CASSANDRA-1311
> URL: https://issues.apache.org/jira/browse/CASSANDRA-1311
> Project: Cassandra
> Issue Type: New Feature
> Reporter: Maxim Grinev
> Assignee: Vijay
> Fix For: 1.3
>
> Attachments: HOWTO-PatchAndRunTriggerExample.txt,
> HOWTO-PatchAndRunTriggerExample-update1.txt, ImplementationDetails.pdf,
> ImplementationDetails-update1.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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