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From "zhijiang (JIRA)" <j...@apache.org>
Subject [jira] [Created] (FLINK-7378) Implement the FixedBufferPool for floating buffers of SingleInputGate
Date Mon, 07 Aug 2017 02:36:00 GMT
zhijiang created FLINK-7378:
-------------------------------

             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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