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https://issues.apache.org/jira/browse/SOLR-11003?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Amrit Sarkar updated SOLR-11003:
--------------------------------
    Attachment: cdcr-bi-tuils.patch

> Enabling bi-directional CDCR active-active clusters
> ---------------------------------------------------
>
>                 Key: SOLR-11003
>                 URL: https://issues.apache.org/jira/browse/SOLR-11003
>             Project: Solr
>          Issue Type: Improvement
>      Security Level: Public(Default Security Level. Issues are Public) 
>          Components: CDCR
>            Reporter: Amrit Sarkar
>            Assignee: Varun Thacker
>         Attachments: cdcr-bi-tuils.patch, sample-configs.zip, 
> SOLR-11003.patch, SOLR-11003-tlogutils.patch
>
>
> The latest version of Solr CDCR across collections / clusters is in 
> active-passive format, where we can index into source collection and the 
> updates gets forwarded to the passive one and vice-versa is not supported.
> https://lucene.apache.org/solr/guide/6_6/cross-data-center-replication-cdcr.html
> https://issues.apache.org/jira/browse/SOLR-6273
> We are try to get a  design ready to index in both collections and the 
> updates gets reflected across the collections in real-time. 
> ClusterACollectionA => ClusterBCollectionB | ClusterBCollectionB => 
> ClusterACollectionA.
> The best use-case would be to we keep indexing in ClusterACollectionA which 
> forwards the updates to ClusterBCollectionB. If ClusterACollectionA gets 
> down, we point the indexer and searcher application to ClusterBCollectionB. 
> Once ClusterACollectionA is up, depending on updates count, they will be 
> bootstrapped or forwarded to ClusterACollectionA from ClusterBCollectionB and 
> keep indexing on the ClusterBCollectionB.



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