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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_r140190096
--- Diff: flink-runtime/src/test/java/org/apache/flink/runtime/io/network/buffer/NetworkBufferPoolTest.java
---
@@ -264,11 +271,13 @@ public void testRequestMemorySegmentsWithBuffersTaken() throws IOException,
Inte
assertNotNull(buffer);
}
- // if requestMemorySegments() blocks, this will make sure that enough buffers are
freed
- // eventually for it to continue
+ // requestMemorySegments() below will and wait for buffers
--- End diff --
typo from my code example: should be "below will wait for buffers"
> 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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