[jira] [Updated] (SOLR-9684) Add scheduler Streaming Expression

["Joel Bernstein (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SOLR-9684?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Joel Bernstein updated SOLR-9684:
---------------------------------
    Attachment: SOLR-9684.patch

New patch with tests

> Add scheduler Streaming Expression
> ----------------------------------
>
>                 Key: SOLR-9684
>                 URL: https://issues.apache.org/jira/browse/SOLR-9684
>             Project: Solr
>          Issue Type: New Feature
>      Security Level: Public(Default Security Level. Issues are Public) 
>            Reporter: Joel Bernstein
>            Assignee: Joel Bernstein
>         Attachments: SOLR-9684.patch, SOLR-9684.patch, SOLR-9684.patch
>
>
> SOLR-9559 adds a general purpose *parallel task executor* for streaming expressions. The executor() function executes a stream of tasks and doesn't have any concept of task priority.
> The scheduler() function wraps two streams, a high priority stream and a low priority stream. The scheduler function emits tuples from the high priority stream first, and then the low priority stream.
> The executor() function can then wrap the scheduler function to see tasks in priority order.
> Pseudo syntax:
> {code}
> daemon(executor(scheduler(topic(tasks, q="priority:high"), topic(tasks, "priority:low"))))
> {code}



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