[SOLR-11717] Document Streaming Examples using SolrJ

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: documentation, streaming expressions
• Assignee: Varun Thacker
• Reporter: Varun Thacker
• Created: 03/Dec/17 20:26
• Updated: 08/Jun/19 15:14

Description

Under http://lucene.apache.org/solr/guide/streaming-expressions.html it would be nice if we had a page dedicated to how to use streaming with SolrJ

Topics we could cover

• How to correctly create a stream expression : https://issues.apache.org/jira/browse/SOLR-11600?focusedCommentId=16261446&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-16261446
• What is a SolrClientCache
• Which Stream objects should be a singleton and reused
• How many http connections / connections_per_host are we limited with by default
• Example where the the Solr query node becomes the co-ordinator for the streaming expressions ( TupleStream solrStream = new SolrStream(solr_query_node, paramsLoc);
• How to use an "empty" Solr node to fire queries against. This node should not have any collections. We could reduce the jetty thread pool size to rate limit number of parallel queries potentially?