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https://issues.apache.org/jira/browse/SOLR-13141?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16959307#comment-16959307
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Jay commented on SOLR-13141:
----------------------------
[~shalin] Is it possible to back port this fix to solr 7.7.x. We are running
into this issue, and see this error show up whenever we do a server
maintenance.
> CDCR bootstrap does not replicate index to the replicas of target cluster
> -------------------------------------------------------------------------
>
> Key: SOLR-13141
> URL: https://issues.apache.org/jira/browse/SOLR-13141
> Project: Solr
> Issue Type: Bug
> Components: CDCR
> Affects Versions: 7.5, 7.6
> Environment: This is system independent problem - exists on windows
> and linux - reproduced by independent developers
> Reporter: Krzysztof Watral
> Assignee: Shalin Shekhar Mangar
> Priority: Critical
> Fix For: master (9.0), 8.3
>
> Attachments: SOLR-13141.patch, SOLR-13141.patch, type 1 - replication
> wasnt working at all.txt, type 2 - only few documents were being
> replicated.txt
>
>
> i have encountered some problems with CDCR that are related to the value of
> {{replicationFactor}} param.
> I ran the solr cloud on two datacenters with 2 nodes on each:
> * dca:
> ** dca_node_1
> ** dca_node_2
> * dcb
> ** dcb_node_1
> ** dcb_node_2
> Then in sequence:
> * I configured the CDCR on copy of *_default* config set named
> *_default_cdcr*
> * I created collection "customer" on both DC from *_default_cdcr* config set
> with the following parameters:
> ** {{numShards}} = 2
> ** {{maxShardsPerNode}} = 2
> ** {{replicationFactor}} = 2
> * I disabled cdcr buffer on collections
> * I ran CDCR on both DC
> CDCR has started without errors in logs. During indexation I have encountered
> problem [^type 2 - only few documents were being replicated.txt], restart
> didn't help (documents has not been synchronized between DC )
> Then:
> * I stopped CDCR on both DC
> * I stopped all solr nodes
> * I restarted zookeepers on both DC
> * I started all solr nodes one by one
> * few minutes later I stared CDCR on both DC
> * CDCR has starded with errors (replication between DC is not working) -
> [^type 1 - replication wasnt working at all.txt]
> {panel}
> I've also discovered that problems appears only in case, when the
> {{replicationFactor}} parameter is higher than one
> {panel}
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