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https://issues.apache.org/jira/browse/SOLR-8577?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Joel Bernstein updated SOLR-8577:
---------------------------------
    Description: 
The AlertStream will return the top N "new" documents for a query from a 
SolrCloud collection. The AlertStream will track the highest version numbers 
from each shard and use these as checkpoints to determine new content.

The DaemonStream (SOLR-8550) can be used to create "live" alerts that run at 
intervals. Sample syntax:

{code}
daemon(alert(collection1, q="hello"), runInterval="2000")
{code}

The DaemonStream can be installed in a SolrCloud worker node where it can llive 
and send out alerts.

The *AlertStream* will also accept an optional *ModelStream* which will apply a 
machine learning model to the alert. For example:
{code}
alert(collection1, q="hello", model(collection2, id="model1"))
{code}
The ModelStream will return a machine learning model saved in a SolrCloud 
collection. Function queries for different model types will be developed so the 
models can be applied in the re-ranker or as a sort.


  was:
The AlertStream will return the top N "new" documents for a query from a 
SolrCloud collection. The AlertStream will track the highest version numbers 
from each shard and use these as checkpoints to determine new content.

The DaemonStream (SOLR-8550) can be used to create "live" alerts that run at 
intervals. Sample syntax:

{code}
daemon(alert(collection1, q="hello") runInterval="2000")
{code}

The DaemonStream can be installed in a SolrCloud worker node where it can llive 
and send out alerts.

The *AlertStream* will also accept an optional *ModelStream* which will apply a 
machine learning model to the alert. For example:
{code}
alert(collection1, q="hello", model(collection2, id="model1"))
{code}
The ModelStream will return a machine learning model saved in a SolrCloud 
collection. Function queries for different model types will be developed so the 
models can be applied in the re-ranker or as a sort.



> Add AlertStream and ModelStream to the Streaming API
> ----------------------------------------------------
>
>                 Key: SOLR-8577
>                 URL: https://issues.apache.org/jira/browse/SOLR-8577
>             Project: Solr
>          Issue Type: New Feature
>            Reporter: Joel Bernstein
>
> The AlertStream will return the top N "new" documents for a query from a 
> SolrCloud collection. The AlertStream will track the highest version numbers 
> from each shard and use these as checkpoints to determine new content.
> The DaemonStream (SOLR-8550) can be used to create "live" alerts that run at 
> intervals. Sample syntax:
> {code}
> daemon(alert(collection1, q="hello"), runInterval="2000")
> {code}
> The DaemonStream can be installed in a SolrCloud worker node where it can 
> llive and send out alerts.
> The *AlertStream* will also accept an optional *ModelStream* which will apply 
> a machine learning model to the alert. For example:
> {code}
> alert(collection1, q="hello", model(collection2, id="model1"))
> {code}
> The ModelStream will return a machine learning model saved in a SolrCloud 
> collection. Function queries for different model types will be developed so 
> the models can be applied in the re-ranker or as a sort.



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