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https://issues.apache.org/jira/browse/SOLR-6952?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14273463#comment-14273463
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Noble Paul commented on SOLR-6952:
----------------------------------

I would say , first we should add support for this in collection API with an 
extra request param. Collection API *should* copy a config to a new dir if that 
param is passed.

The script should use that param ON by default . The reason is going forward 
config is editable, through configoverlay.json and params.json . So, shared 
configs are dangerous and unsuspecting users will not know why things are 
screwed up

example I would prefer
{noformat}
bin/solr create_collection -n foo -t data_driven_schema_configs -c -shareconfig
{noformat}

> Re-using data-driven configsets by default is not helpful
> ---------------------------------------------------------
>
>                 Key: SOLR-6952
>                 URL: https://issues.apache.org/jira/browse/SOLR-6952
>             Project: Solr
>          Issue Type: Bug
>          Components: Schema and Analysis
>    Affects Versions: 5.0
>            Reporter: Grant Ingersoll
>            Assignee: Timothy Potter
>             Fix For: 5.0
>
>
> When creating collections (I'm using the bin/solr scripts), I think we should 
> automatically copy configsets, especially when running in "getting started 
> mode" or data driven mode.
> I did the following:
> {code}
> bin/solr create_collection -n foo
> bin/post foo some_data.csv
> {code}
> I then created a second collection with the intention of sending in the same 
> data, but this time run through a python script that changed a value from an 
> int to a string (since it was an enumerated type) and was surprised to see 
> that I got:
> {quote}
> Caused by: java.lang.NumberFormatException: For input string: "NA"
>       at 
> java.lang.NumberFormatException.forInputString(NumberFormatException.java:65)
>       at java.lang.Long.parseLong(Long.java:441)
> {quote}
> for my new version of the data that passes in a string instead of an int, as 
> this new collection had only seen strings for that field.



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