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https://issues.apache.org/jira/browse/FLINK-7316?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16116672#comment-16116672
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ASF GitHub Bot commented on FLINK-7316:
---------------------------------------
Github user StefanRRichter commented on a diff in the pull request:
https://github.com/apache/flink/pull/4481#discussion_r131673257
--- Diff:
flink-runtime/src/main/java/org/apache/flink/runtime/io/network/buffer/NetworkBufferPool.java
---
@@ -274,7 +260,7 @@ private void redistributeBuffers() throws IOException {
return;
}
- /**
--- End diff --
Ok, then just leave it :D
> always use off-heap network buffers
> -----------------------------------
>
> Key: FLINK-7316
> URL: https://issues.apache.org/jira/browse/FLINK-7316
> Project: Flink
> Issue Type: Sub-task
> Components: Core, Network
> Affects Versions: 1.4.0
> Reporter: Nico Kruber
> Assignee: Nico Kruber
>
> In order to send flink buffers through netty into the network, we need to
> make the buffers use off-heap memory. Otherwise, there will be a hidden copy
> happening in the NIO stack.
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