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Posted to issues@flink.apache.org by "zhijiang (JIRA)" <ji...@apache.org> on 2017/08/07 02:45:00 UTC
[jira] [Commented] (FLINK-7377) Implement FixedBufferPool for
floating buffers in SingleInputGate
[ https://issues.apache.org/jira/browse/FLINK-7377?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16116017#comment-16116017 ]
zhijiang commented on FLINK-7377:
---------------------------------
repeated in [FLINK-7378|https://issues.apache.org/jira/browse/FLINK-7378]
> Implement FixedBufferPool for floating buffers in SingleInputGate
> -----------------------------------------------------------------
>
> Key: FLINK-7377
> URL: https://issues.apache.org/jira/browse/FLINK-7377
> Project: Flink
> Issue Type: Task
> Components: Core
> Affects Versions: 1.4.0
> Reporter: zhijiang
> Assignee: zhijiang
>
> 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 implement a new fixed size buffer pool type used to manage the floating buffers for {{SingleInputGate}}.
> Compared with {{LocalBufferPool}}, this is a non-rebalancing buffer pool which will not participate in redistributing the left available buffers in {{NetworkBufferPool}}.
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