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https://issues.apache.org/jira/browse/SOLR-6938?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14288675#comment-14288675
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Noble Paul commented on SOLR-6938:
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OK
We don't need to change anything .
* The tests failed because it just short circuits the whole request parameters
by parsing and invoking the request handlers directly.
* This has been out there this way from 4.10
So the point is, it is it does not break any backward compatibility even if you
use the old config with the new binaries
> Implicit configuration of Update handlers does not match previous explicit one
> ------------------------------------------------------------------------------
>
> Key: SOLR-6938
> URL: https://issues.apache.org/jira/browse/SOLR-6938
> Project: Solr
> Issue Type: Bug
> Components: update
> Affects Versions: 5.0
> Reporter: Alexandre Rafalovitch
> Assignee: Noble Paul
> Fix For: 5.0, Trunk
>
> Attachments: SOLR-6938.patch
>
>
> There seem to be confusion/inconsistency between *contentType* (stream or
> update) parameter as defined in the commented-out update handler and new
> implicit implementation.
> Specifically, in (current 5 build's) techproduct's solrconfig.xml, it says:
> {quote}
> <!-- The following are implicitly added
> <requestHandler name="/update/json" class="solr.UpdateRequestHandler">
> <lst name="defaults">
> <str name="stream.contentType">application/json</str>
> </lst>
> </requestHandler>
> <requestHandler name="/update/csv" class="solr.UpdateRequestHandler">
> <lst name="defaults">
> <str name="stream.contentType">application/csv</str>
> </lst>
> </requestHandler>
> -->
> {quote}
> The documentation also says to use *stream.contentType* at:
> https://cwiki.apache.org/confluence/display/solr/Uploading+Data+with+Index+Handlers
> However, the http://localhost:8983/solr/techproducts/config says instead:
> {quote}
> "/update/json":{
> "name":"/update/json",
> "class":"org.apache.solr.handler.UpdateRequestHandler",
> "defaults":{"update.contentType":"application/json"}},
> "/update/csv":{
> "name":"/update/csv",
> "class":"org.apache.solr.handler.UpdateRequestHandler",
> "defaults":{"update.contentType":"application/csv"}},
> {quote}
> Seems to be pure inconsistency, since Reference Guide does not mention
> *update.contentType*.
> Yet earlier in the same *solrconfig.xml* it says:
> {quote}
> To override the request content type and force a specific
> Content-type, use the request parameter:
> ?update.contentType=text/csv
> {quote}
> Are these different or same? They should definitely be consistent between
> code and comment, but it seems there is a bit of an extra confusion on top.
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