[jira] [Updated] (SOLR-11920) Differential file copy for IndexFetcher

["Ishan Chattopadhyaya (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SOLR-11920?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ishan Chattopadhyaya updated SOLR-11920:
----------------------------------------
    Attachment: SOLR-11920.patch

> Differential file copy for IndexFetcher
> ---------------------------------------
>
>                 Key: SOLR-11920
>                 URL: https://issues.apache.org/jira/browse/SOLR-11920
>             Project: Solr
>          Issue Type: Improvement
>      Security Level: Public(Default Security Level. Issues are Public) 
>            Reporter: Ishan Chattopadhyaya
>            Assignee: Ishan Chattopadhyaya
>            Priority: Major
>         Attachments: SOLR-11920.patch
>
>
> In the case of fullCopy=true, all files are copied over from the leader/master irrespective of whether or not that exact file exists with the replica/slave. This is wasteful, esp. in tlog replicas or pull replicas, when only a fraction of the total files are different.
> This stems from SOLR-11815.



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