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ASF GitHub Bot commented on FLINK-7378: --------------------------------------- Github user NicoK commented on a diff in the pull request: https://github.com/apache/flink/pull/4485#discussion_r132655594 --- Diff: flink-runtime/src/main/java/org/apache/flink/runtime/io/network/buffer/BufferPool.java --- @@ -79,4 +79,12 @@ * Returns the number of used buffers of this buffer pool. */ int bestEffortGetNumOfUsedBuffers(); + + /** + * Adds a buffer availability listener to this buffer pool. + * + * <p> The operation fails with return value <code>false</code>, when there is a buffer available or --- End diff -- please remove the space after <p> (checkstyle) > 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}}. -- This message was sent by Atlassian JIRA (v6.4.14#64029)