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https://issues.apache.org/jira/browse/CAMEL-14107?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16959567#comment-16959567
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Pasquale Congiusti commented on CAMEL-14107:
--------------------------------------------

I understand. The fact is that the actual consumer operation available in 
mongodb component version 2 is the tailable consumer one. This requires a 
special type of collection ([capped 
collection|https://docs.mongodb.com/manual/core/capped-collections/]) that is 
practically never used in production dbs. Change stream is based on oplog and 
it would allow tailing any kind of collections instead. I think there may still 
be enough Camel 2 users that could benefit.

> Backport MongoDB change stream feature to 2.x
> ---------------------------------------------
>
>                 Key: CAMEL-14107
>                 URL: https://issues.apache.org/jira/browse/CAMEL-14107
>             Project: Camel
>          Issue Type: Improvement
>            Reporter: Pasquale Congiusti
>            Assignee: Pasquale Congiusti
>            Priority: Major
>
> [Change stream mongodb consumer 
> feature|https://camel.apache.org/components/latest/mongodb-component.html#_change_streams_consumer]
>  introduced in Camel 3 is a very interesting option that we should port to 
> latest Camel 2 versions too in order to be used without needing a major 
> upgrade.



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