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https://issues.apache.org/jira/browse/SOLR-4808?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13703627#comment-13703627
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Yonik Seeley commented on SOLR-4808:
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bq. New mandatory "collectionApiMode" parameter during create collection
command (we can think of a better name)
Eh, internally mandatory I hope (as in, the user should not have to specify it?)
bq. replicationFactor is persisted at slice level
It still feels like this should be a collection level property that we have the
ability to store/override on a per-shard level.
The reasons off the top of my head:
- would be nice to be able to create a new shard w/o having to know/specify
what the replication factor currently is
- possible to completely lose the replication factor if we delete a shard and
re-add a new one
- there may be one shard that has a lot of demand and you set it's replication
level high... so you override the replicationFactor for that shard only. It
would still be nice to be able to adjust the replication factor for everyone
else (by adjusting the collection level replicationFactor)
"maxShardsPerNode" - should that be maxReplicasPerNode, or are we really
talking logical shards?
> Persist and use replication factor and maxShardsPerNode at Collection and
> Shard level
> -------------------------------------------------------------------------------------
>
> Key: SOLR-4808
> URL: https://issues.apache.org/jira/browse/SOLR-4808
> Project: Solr
> Issue Type: New Feature
> Components: SolrCloud
> Reporter: Anshum Gupta
> Assignee: Shalin Shekhar Mangar
> Labels: solrcloud
> Attachments: SOLR-4808.patch, SOLR-4808.patch
>
>
> The replication factor for a collection as of now is not persisted and used
> while adding replicas.
> We should save the replication factor at collection factor as well as shard
> level.
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