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Posted to issues@flink.apache.org by "zhijiang (JIRA)" <ji...@apache.org> on 2017/08/07 02:36:00 UTC

[jira] [Created] (FLINK-7378) Implement the FixedBufferPool for floating buffers of SingleInputGate

zhijiang created FLINK-7378:
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             Summary: Implement the FixedBufferPool for floating buffers of SingleInputGate
                 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 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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