[jira] [Commented] (FLINK-7378) Create a fix size (non rebalancing) buffer pool type for the floating buffers

["ASF GitHub Bot (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/FLINK-7378?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16153153#comment-16153153 ] 

ASF GitHub Bot commented on FLINK-7378:
---------------------------------------

Github user zhijiangW commented on the issue:

    https://github.com/apache/flink/pull/4485
  
    @NicoK , I have submitted the updates based on last comments.
    
    Your concerns of interaction between requesting memory segments and creating buffer pool is really necessary. I also noticed that after reviewed the process.  



> Create a fix size (non rebalancing) buffer pool type for the floating buffers
> -----------------------------------------------------------------------------
>
>                 Key: FLINK-7378
>                 URL: https://issues.apache.org/jira/browse/FLINK-7378
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Core
>            Reporter: zhijiang
>            Assignee: zhijiang
>             Fix For: 1.4.0
>
>
> Currently the number of network buffers in {{LocalBufferPool}} for {{SingleInputGate}} is limited by {{a * <number of channels> + b}}, where a is the number of exclusive buffers for each channel and b is the number of floating buffers shared by all channels.
> Considering the credit-based flow control feature, we want to create a fix size buffer pool used to manage the floating buffers for {{SingleInputGate}}. And the exclusive buffers are assigned to {{InputChannel}}s directly.



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