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https://issues.apache.org/jira/browse/SOLR-9883?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Steve Rowe reassigned SOLR-9883:
--------------------------------

    Assignee: Steve Rowe

> example solr config files can lead to invalid tlog replays when using 
> add-unknown-fields-to-schema updat chain
> --------------------------------------------------------------------------------------------------------------
>
>                 Key: SOLR-9883
>                 URL: https://issues.apache.org/jira/browse/SOLR-9883
>             Project: Solr
>          Issue Type: Bug
>      Security Level: Public(Default Security Level. Issues are Public) 
>    Affects Versions: 6.3, trunk
>            Reporter: Erick Erickson
>            Assignee: Steve Rowe
>
> The current basic_configs and data_driven_schema_configs try to create 
> unknown fields. The problem is that the date processing 
> "ParseDateFieldUpdateProcessorFactory" is not invoked if the doc is replayed 
> from the tlog. Whether there are other places this is a problem I don't know, 
> this is a concrete example that fails in the field.
> So say I have a pattern for dates that omits the trialing 'Z', as:
> yyyy-MM-dd'T'HH:mm:ss.SSS
> This work fine when the doc is initially indexed. Now say the doc must be 
> replayed from the tlog. The doc errors out with "unknown date format" since 
> (apparently) this doesn't go through the same update chain, perhaps due to 
> the sample configs defining ParseDateFieldUpdateProcessorFactory after  
> DistributedUpdateProcessorFactory?



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