ahmarsuhail commented on code in PR #4458:
URL: https://github.com/apache/hadoop/pull/4458#discussion_r924708222
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hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/common/CachingBlockManager.java:
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@@ -330,6 +341,10 @@ private void readBlock(BufferData data, boolean
isPrefetch, BufferData.State...
this.read(buffer, offset, size);
buffer.flip();
data.setReady(expectedState);
+
+ if(isPrefetch) {
+ this.prefetchingStatistics.prefetchOperationCompleted();
Review Comment:
So this was currently only measuring successful calls, I'm now also adding a
count for failure. I can't figure out how to measure duration for a failure
though, could you point me to an example?
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