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https://issues.apache.org/jira/browse/FLINK-8178?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16287913#comment-16287913
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ASF GitHub Bot commented on FLINK-8178:
---------------------------------------
Github user NicoK commented on a diff in the pull request:
https://github.com/apache/flink/pull/5105#discussion_r156420605
--- Diff:
flink-runtime/src/main/java/org/apache/flink/runtime/io/network/buffer/LocalBufferPool.java
---
@@ -188,10 +189,16 @@ public Buffer requestBuffer() throws IOException {
@Override
public Buffer requestBufferBlocking() throws IOException,
InterruptedException {
- return requestBuffer(true);
+ BufferBuilder bufferBuilder = requestBufferBuilder(true);
+ return bufferBuilder != null ? bufferBuilder.build() : null;
--- End diff --
Similar here, but this is already only used in tests and may thus be
removed(?)
> Introduce not threadsafe write only BufferBuilder
> -------------------------------------------------
>
> Key: FLINK-8178
> URL: https://issues.apache.org/jira/browse/FLINK-8178
> Project: Flink
> Issue Type: Improvement
> Components: Network
> Reporter: Piotr Nowojski
> Assignee: Piotr Nowojski
> Fix For: 1.5.0
>
>
> While Buffer class is used in multithreaded context it requires
> synchronisation. Now it is miss-leading/unclear and suggesting that
> RecordSerializer should take into account synchronisation of the Buffer
> that's holding. With NotThreadSafe BufferBuilder there would be clear
> separation between single-threaded writing/creating a BufferBuilder and
> multithreaded Buffer handling/retaining/recycling.
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