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https://issues.apache.org/jira/browse/SOLR-8127?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14943572#comment-14943572
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Alex K commented on SOLR-8127:
------------------------------

Amazingly quick response :)

You're right, I've updated the ticket title to indicate this is about the Luke 
request handler.

I believe the scenario you described is exactly what's happening. I didn't know 
that Luke has no way of knowing this stuff, being at the Lucene level. Thank 
you for giving a definitive answer.

> Luke request handler does not know about dynamic fields on other shards fast 
> enough
> -----------------------------------------------------------------------------------
>
>                 Key: SOLR-8127
>                 URL: https://issues.apache.org/jira/browse/SOLR-8127
>             Project: Solr
>          Issue Type: Bug
>          Components: Schema and Analysis, SolrCloud
>    Affects Versions: 4.10.2
>         Environment: 3 shards
>            Reporter: Alex K
>              Labels: dynamic, luke, replication, sharding
>
> Add a document with a new (never seen before) dynamic field. It will not be 
> visible through Luke requests on the other shards for quite a while, and 
> there is no documentation regarding exactly how long it will take. The result 
> is that a query to Luke must be made to every shard in the cluster if all 
> dynamic fields are needed.
> All shards should be aware of a new dynamic field within seconds, if not 
> milliseconds.



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