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Posted to issues@flink.apache.org by GitBox <gi...@apache.org> on 2019/05/31 07:34:01 UTC

[GitHub] [flink] pnowojski commented on a change in pull request #8320: [FLINK-12201][network, metrics] Introduce InputGateWithMetrics in Task to increment numBytesIn metric

pnowojski commented on a change in pull request #8320: [FLINK-12201][network,metrics] Introduce InputGateWithMetrics in Task to increment numBytesIn metric
URL: https://github.com/apache/flink/pull/8320#discussion_r289283422
 
 

 ##########
 File path: flink-runtime/src/main/java/org/apache/flink/runtime/io/network/partition/consumer/SingleInputGate.java
 ##########
 @@ -566,9 +560,9 @@ private BufferOrEvent transformToBufferOrEvent(
 			Buffer buffer,
 			boolean moreAvailable,
 			InputChannel currentChannel) throws IOException, InterruptedException {
-		numBytesIn.inc(buffer.getSizeUnsafe());
+		final int size = buffer.getSizeUnsafe();
 
 Review comment:
   Hmm, it looks like we can drop `getSizeUnsafe()` method altogether, since it doesn't differ from `getSize()` - both are not synchronized (also like `setSize()`). It seems like I or @NicoK missed that when we were implementing low latency changes and dropping the synchronisation in the `Buffer` class. Or am I missing something?

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