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From "zhijiang (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (FLINK-7378) Create a fix size (non rebalancing) buffer pool type for the floating buffers
Date Thu, 21 Sep 2017 08:20:00 GMT

     [ https://issues.apache.org/jira/browse/FLINK-7378?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

zhijiang updated FLINK-7378:
----------------------------
    Description: 
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}} directly.

  was:
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.


> 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}} directly.



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