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https://issues.apache.org/jira/browse/SOLR-11718?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Amrit Sarkar updated SOLR-11718:
--------------------------------
    Attachment: SOLR-11652.patch

Please mind on the patch, I have commented out the relevant code from the 
module. I can remove them completely if that is how deprecation of APIs are 
done.

> Deprecate CDCR Buffer APIs
> --------------------------
>
>                 Key: SOLR-11718
>                 URL: https://issues.apache.org/jira/browse/SOLR-11718
>             Project: Solr
>          Issue Type: Improvement
>      Security Level: Public(Default Security Level. Issues are Public) 
>          Components: CDCR
>    Affects Versions: 7.1
>            Reporter: Amrit Sarkar
>             Fix For: 7.2
>
>         Attachments: SOLR-11652.patch
>
>
> Kindly see the discussion on SOLR-11652.
> Today, if we see the current CDCR documentation page, buffering is "disabled" 
> by default in both source and target. We don't see any purpose served by Cdcr 
> buffering and it is quite an overhead considering it can take a lot heap 
> space (tlogs ptr) and forever retention of tlogs on the disk when enabled. 
> Also today, even if we disable buffer from API on source , considering it was 
> enabled at startup, tlogs are never purged on leader node of shards of 
> source, refer jira: SOLR-11652



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