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https://issues.apache.org/jira/browse/SOLR-8588?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Joel Bernstein updated SOLR-8588:
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Attachment: SOLR-8588.patch
> Add TopicStream to the streaming API
> ------------------------------------
>
> Key: SOLR-8588
> URL: https://issues.apache.org/jira/browse/SOLR-8588
> Project: Solr
> Issue Type: New Feature
> Reporter: Joel Bernstein
> Assignee: Joel Bernstein
> Attachments: SOLR-8588.patch, SOLR-8588.patch, SOLR-8588.patch,
> SOLR-8588.patch
>
>
> The TopicStream is a *publish/subscribe messaging service* built on top of
> SolrCloud. The TopicStream returns all *new* documents for a specific query.
> Version numbers will be used as checkpoints for Topics to ensure single
> delivery of each document. When combined with the DaemonStream (SOLR-8550),
> Topics can provide continuous streaming. Sample syntax:
> {code}
> topic(checkpointCollection, dataCollection, id="topicA", q="awesome stuff"
> checkpointEvery="1000")
> {code}
> The checkpoint collection will be used to persist the topic checkpoints.
> Example combined with the DaemonStream:
> {code}
> daemon(topic(...)...)
> {code}
> When combined with SOLR-7739 this allows for messaging based on *machine
> learned* classifications.
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