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https://issues.apache.org/jira/browse/KAFKA-8315?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Andrew updated KAFKA-8315:
--------------------------
    Description: 
The documentation says to use `Materialized` not `JoinWindows.until()` 
([https://kafka.apache.org/22/javadoc/org/apache/kafka/streams/kstream/JoinWindows.html#until-long-]),
 but there is no where to pass a `Materialized` instance to the join operation, 
only to the group operation is supported it seems.

 

Slack conversation here : 
[https://confluentcommunity.slack.com/archives/C48AHTCUQ/p1556799561287300
]

[Additional]

>From what I understand, the retention period should be independent of the 
>grace period, so I think this is more than a documentation fix (see comments 
>below)

  was:
The documentation says to use `Materialized` not `JoinWindows.until()` 
(https://kafka.apache.org/22/javadoc/org/apache/kafka/streams/kstream/JoinWindows.html#until-long-),
 but there is no where to pass a `Materialized` instance to the join operation, 
only to the group operation is supported it seems.

 

Slack conversation here : 
https://confluentcommunity.slack.com/archives/C48AHTCUQ/p1556799561287300


> Cannot pass Materialized into a join operation
> ----------------------------------------------
>
>                 Key: KAFKA-8315
>                 URL: https://issues.apache.org/jira/browse/KAFKA-8315
>             Project: Kafka
>          Issue Type: Bug
>            Reporter: Andrew
>            Assignee: John Roesler
>            Priority: Major
>
> The documentation says to use `Materialized` not `JoinWindows.until()` 
> ([https://kafka.apache.org/22/javadoc/org/apache/kafka/streams/kstream/JoinWindows.html#until-long-]),
>  but there is no where to pass a `Materialized` instance to the join 
> operation, only to the group operation is supported it seems.
>  
> Slack conversation here : 
> [https://confluentcommunity.slack.com/archives/C48AHTCUQ/p1556799561287300
> ]
> [Additional]
> From what I understand, the retention period should be independent of the 
> grace period, so I think this is more than a documentation fix (see comments 
> below)



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