[jira] [Resolved] (KAFKA-4504) Details of retention.bytes property at Topic level are not clear on how they impact partition size

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

     [ https://issues.apache.org/jira/browse/KAFKA-4504?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Manikumar resolved KAFKA-4504.
------------------------------
       Resolution: Fixed
         Assignee: Manikumar
    Fix Version/s: 1.0.0

> Details of retention.bytes property at Topic level are not clear on how they impact partition size
> --------------------------------------------------------------------------------------------------
>
>                 Key: KAFKA-4504
>                 URL: https://issues.apache.org/jira/browse/KAFKA-4504
>             Project: Kafka
>          Issue Type: Improvement
>          Components: documentation
>    Affects Versions: 0.10.0.1
>            Reporter: Justin Manchester
>            Assignee: Manikumar
>             Fix For: 1.0.0
>
>
> Problem:
> Details of retention.bytes property at Topic level are not clear on how they impact partition size
> Business Impact:
> Users are setting retention.bytes and not seeing the desired store amount of data.
> Current Text:
> This configuration controls the maximum size a log can grow to before we will discard old log segments to free up space if we are using the "delete" retention policy. By default there is no size limit only a time limit.
> Proposed change:
> This configuration controls the maximum size a log can grow to before we will discard old log segments to free up space if we are using the "delete" retention policy. By default there is no size limit only a time limit.  Please note, this is calculated as retention.bytes * number of partitions on the given topic for the total  amount of disk space to be used.  



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