[jira] [Commented] (FLINK-9076) Make credit-based floating buffers optional

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

    [ https://issues.apache.org/jira/browse/FLINK-9076?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16424083#comment-16424083 ] 

Piotr Nowojski commented on FLINK-9076:
---------------------------------------

[~NicoK], do you mean max should be configured by a user, or should it be a dynamically adjusted value?

> Make credit-based floating buffers optional
> -------------------------------------------
>
>                 Key: FLINK-9076
>                 URL: https://issues.apache.org/jira/browse/FLINK-9076
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Network
>    Affects Versions: 1.5.0, 1.6.0
>            Reporter: Nico Kruber
>            Assignee: Nico Kruber
>            Priority: Blocker
>             Fix For: 1.5.0
>
>
> Currently, floating buffers (per gate) are always required in case credit-based flow control is enabled. This, however, increases our minimum number of required network buffers.
> Instead, without changing too much, we could already work with a minimum of one floating buffer and set the max to the configured value. This way, if there are not enough buffers, all {{LocalBufferPool}}s will at least share the available ones.



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