No any documentation for solr indexing configurations in registry.xml

Description:
Hi team,
There are no any official documentation available for the public for the solr configuration parameters available in the registry.xml file.
Having proper explanation for these parameters is important for the users/customer who are trying to optimise the time taken for indexing.

i.e:
indexingConfiguration> <startIndexing>true</startIndexing> <skipCache>true</skipCache> <startingDelayInSeconds>35</startingDelayInSeconds> <indexingFrequencyInSeconds>3</indexingFrequencyInSeconds> <!--number of resources submit for given indexing thread --> <batchSize>40</batchSize> <!--number of worker threads for indexing --> <indexerPoolSize>40</indexerPoolSize> <!-- location storing the time the indexing took place--> <lastAccessTimeLocation>/_system/local/repository/components/org.wso2.carbon.registry/indexing/lastaccesstime</lastAccessTimeLocation> <!-- the indexers that implement the indexer interface for a relevant media type/(s) --> <indexers> <!--indexer class="org.wso2.carbon.registry.indexing.indexer.MSExcelIndexer" mediaTypeRegEx="application/vnd.ms-excel"/> <indexer class="org.wso2.carbon.registry.indexing.indexer.MSPowerpointIndexer" mediaTypeRegEx="application/vnd.ms-powerpoint"/> <indexer class="org.wso2.carbon.registry.indexing.indexer.MSWordIndexer" mediaTypeRegEx="application/msword"/> <indexer class="org.wso2.carbon.registry.indexing.indexer.PDFIndexer" mediaTypeRegEx="application/pdf"/> <indexer class="org.wso2.carbon.registry.indexing.indexer.XMLIndexer" mediaTypeRegEx="application/xml"/--> <!--indexer class="org.wso2.carbon.governance.registry.extensions.indexers.RXTIndexer" mediaTypeRegEx="application/wsdl\+xml" profiles ="default,api-devportal-deprecated,api-publisher-deprecated,control-plane"/> <indexer class="org.wso2.carbon.governance.registry.extensions.indexers.RXTIndexer" mediaTypeRegEx="application/x-xsd\+xml " profiles ="default,api-devportal-deprecated,api-publisher-deprecated,control-plane"/> <indexer class="org.wso2.carbon.governance.registry.extensions.indexers.RXTIndexer" mediaTypeRegEx="application/policy\+xml" profiles ="default,api-devportal-deprecated,api-publisher-deprecated,control-plane"/--> <indexer class="org.wso2.carbon.apimgt.impl.indexing.indexer.DocumentIndexer" mediaTypeRegEx="application/vnd.wso2-document\+xml" profiles ="default,api-devportal-deprecated,api-publisher-deprecated,control-plane"/> <indexer class="org.wso2.carbon.apimgt.impl.indexing.indexer.CustomAPIIndexer" mediaTypeRegEx="application/vnd.(.)+\+xml" profiles ="default,api-devportal-deprecated,api-publisher-deprecated,control-plane"/> <!--indexer class="org.wso2.carbon.registry.indexing.indexer.XMLIndexer" mediaTypeRegEx="application/(.)+\+xml"/> <indexer class="org.wso2.carbon.registry.indexing.indexer.PlainTextIndexer" mediaTypeRegEx="text/(.)+"/> <indexer class="org.wso2.carbon.registry.indexing.indexer.PlainTextIndexer" mediaTypeRegEx="application/x-javascript"/--> <indexer class="org.wso2.carbon.apimgt.impl.indexing.indexer.PlainTextIndexer" mediaTypeRegEx="text/plain+" profiles ="default,api-devportal-deprecated,api-publisher-deprecated,control-plane"/> <indexer class="org.wso2.carbon.apimgt.impl.indexing.indexer.PDFIndexer" mediaTypeRegEx="application/pdf" profiles ="default,api-devportal-deprecated,api-publisher-deprecated,control-plane"/> <indexer class="org.wso2.carbon.apimgt.impl.indexing.indexer.MSWordIndexer" mediaTypeRegEx="application/msword" profiles ="default,api-devportal-deprecated,api-publisher-deprecated,control-plane"/> <indexer class="org.wso2.carbon.apimgt.impl.indexing.indexer.MSPowerpointIndexer" mediaTypeRegEx="application/vnd.ms-powerpoint" profiles ="default,api-devportal-deprecated,api-publisher-deprecated,control-plane"/> <indexer class="org.wso2.carbon.apimgt.impl.indexing.indexer.MSExcelIndexer" mediaTypeRegEx="application/vnd.ms-excel" profiles ="default,api-devportal-deprecated,api-publisher-deprecated,control-plane"/> <indexer class="org.wso2.carbon.apimgt.impl.indexing.indexer.XMLIndexer" mediaTypeRegEx="application/xml" profiles ="default,api-devportal-deprecated,api-publisher-deprecated,control-plane"/> <indexer class="org.wso2.carbon.apimgt.impl.indexing.indexer.WSDLIndexer" mediaTypeRegEx="application/api-wsdl" profiles ="default,api-devportal-deprecated,api-publisher-deprecated,control-plane"/> </indexers> <exclusions> <exclusion pathRegEx="/_system/config/repository/dashboards/gadgets/swfobject1-5/.*[.]html"/> <exclusion pathRegEx="/_system/local/repository/components/org[.]wso2[.]carbon[.]registry/mount/.*"/> </exclusions> </indexingConfiguration>

Suggested Labels:

Suggested Assignees:

Affected Product Version:
APIM 400

OS, DB, other environment details and versions:

Steps to reproduce:

Related Issues:

Start by locating registry.xml and the existing APIM documentation structure for configuration references. Document the purpose of the listed indexingConfiguration parameters, indexers, and exclusions, with enough guidance for users tuning indexing time; done means the registry.xml settings are explained in the public documentation.