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https://issues.apache.org/jira/browse/SOLR-1167?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12710537#action_12710537
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Bryan Talbot commented on SOLR-1167:
------------------------------------
Support for xinclude will allow a few options to include xml (or non-xml)
content from an external file. The external file can be loaded from the file
system or from any HTTP resource.
Here are some examples:
<!-- include solrconfig_master.xml from the file system and generate an error
if the file can't be found -->
<xi:include href="solr/conf/solrconfig_master.xml"
xmlns:xi="http://www.w3.org/2001/XInclude"/>
<!-- include solrconfig_master.xml from an HTTP URL and ignore it if it's
missing -->
<xi:include
href="http://localhost:8983/solr/admin/file/?file=replication_master.xml";
xmlns:xi="http://www.w3.org/2001/XInclude";>
</xi:fallback/>
</xi:include>
<!-- include solrconfig_master.xml from the filesystem. If it cannot be
found, attempt
to include solrconfig_slave.xml from the filesystem. If neither file
can be found, don't
generate an error.
-->
<xi:include href="solr/conf/solrconfig_master.xml"
xmlns:xi="http://www.w3.org/2001/XInclude";>
<xi:fallback>
<xi:include href="solr/conf/solrconfig_slave.xml"
xmlns:xi="http://www.w3.org/2001/XInclude";>
<xi:fallback/>
</xi:include>
</xi:fallback>
</xi:include>
<!-- attempt to include an optional file containing index options. If the
file can't be found, fall back to some
default values.
-->
<xi:include href="solr/conf/solrconfig_indexOptions.xml"
xmlns:xi="http://www.w3.org/2001/XInclude";>
<xi:fallback>
<useCompoundFile>false</useCompoundFile>
<ramBufferSizeMB>32</ramBufferSizeMB>
<mergeFactor>10</mergeFactor>
<maxMergeDocs>2147483647</maxMergeDocs>
<maxFieldLength>10000</maxFieldLength>
</xi:fallback>
</xi:include>
I'll update the patch to include solrconfig_master.xml and solrconfig_slave.xml
files if they are present in the solr/conf directory. The inclusions are
currently commented out and the resulting configuration is equivalent to the
existing sample config.
> Support module xml config files using XInclude
> ----------------------------------------------
>
> Key: SOLR-1167
> URL: https://issues.apache.org/jira/browse/SOLR-1167
> Project: Solr
> Issue Type: New Feature
> Reporter: Bryan Talbot
> Priority: Minor
> Attachments: SOLR-1167.patch
>
>
> Current configuration files (schema and solrconfig) are monolithic which can
> make maintenance and reuse more difficult that it needs to be. The XML
> standards include a feature to include content from external files. This is
> described at http://www.w3.org/TR/xinclude/
> This feature is to add support for XInclude features for XML configuration
> files.
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