[
https://issues.apache.org/jira/browse/SOLR-6526?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Joel Bernstein updated SOLR-6526:
---------------------------------
Summary: Solr Streaming API (was: Solr Stream API)
> Solr Streaming API
> ------------------
>
> Key: SOLR-6526
> URL: https://issues.apache.org/jira/browse/SOLR-6526
> Project: Solr
> Issue Type: New Feature
> Components: clients - java
> Reporter: Joel Bernstein
> Fix For: 5.0
>
>
> It would be great if there was a SolrJ library that could connect to Solr's
> /export handler and perform streaming operations on the sorted result sets.
> This ticket defines the base interfaces and implementations for the Streaming
> API. The base API contains three classes:
> *SolrStream*: This represents a stream from a single Solr instance. It speaks
> directly to the /export handler and provides methods to read() Tuples and
> close() the stream
> *CloudSolrStream*: This represents a stream from a SolrCloud collection. It
> speaks with Zk to discover the Solr instances in the collection and then
> creates SolrStreams to make the requests. The results from the underlying
> streams are merge inline to produce a single sorted stream of tuples.
> *Tuple*: The data structure returned by the read() method of the SolrStream
> API. It is nested to support grouping and Cartesian product set operations.
> Once these base classes are implemented it paves the way to building
> *decorator* streams that perform operations on the sorted Tuple sets. For
> example a CollapseStream could be created:
> {code}
> CollapseStream collapseStream = new CollapseStream(new
> CloudSolrStream(zkHome, queryRequest));
> Tuple tuple = null;
> while((tuple = collapseStream.read()) != null) {
> }
> {code}
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
