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https://issues.apache.org/jira/browse/SOLR-3251?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13572875#comment-13572875
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Steve Rowe commented on SOLR-3251:
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Here's a rough outline of what I'd like to do:
# Add schema field & fieldtype details REST API methods getFields, getField,
getFieldtypes, and getFieldtype. (A client should be able to find out the
current set of fields/fieldtypes before adding a new one.)
# Change Solr schema serialization from XML to JSON, and provide an XML->JSON
conversion tool.
# Add internal addField method:
** Modify in-memory schema, based on Yonik's patch
** Persist/reload schema:
*** In standalone mode (and on node handling addField request in SolrCloud
mode), after creating new schema, persist (locally or to ZK), then switch to
new schema.
*** In SolrCloud mode, set watches on the schema in ZK; when triggered,
read/parse schema from ZK, and reload changed parts only. In-flight requests
will not see schema changes.
# Implement REST API addField method; add Restlet dependency.
I'm proposing to keep the schema in ZK as a znode, as it is now, rather than
having one znode per section or per item.
> dynamically add field to schema
> -------------------------------
>
> Key: SOLR-3251
> URL: https://issues.apache.org/jira/browse/SOLR-3251
> Project: Solr
> Issue Type: New Feature
> Reporter: Yonik Seeley
> Attachments: SOLR-3251.patch
>
>
> One related piece of functionality needed for SOLR-3250 is the ability to
> dynamically add a field to the schema.
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