hangc0276 commented on code in PR #3364:
URL: https://github.com/apache/bookkeeper/pull/3364#discussion_r906748686
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bookkeeper-server/src/main/java/org/apache/bookkeeper/bookie/stats/JournalStats.java:
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@@ -153,6 +154,13 @@ public class JournalStats {
help = "The journal callback queue size"
)
private final Counter journalCbQueueSize;
+
+ @StatsDoc(
+ name = JOURNAL_CB_QUEUE_LATENCY,
+ help = "The journal callback queue size"
Review Comment:
`The journal callback queued latency` ?
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bookkeeper-server/src/main/java/org/apache/bookkeeper/bookie/Journal.java:
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@@ -1118,6 +1129,7 @@ journalFormatVersionToWrite, getBufferedChannelBuilder(),
if (entry != null && (!syncData ||
entry.ackBeforeSync)) {
toFlush.set(i, null);
numEntriesToFlush--;
+
entry.setEnqueueCbThreadPooleQueueTime(MathUtils.nowInNano());
Review Comment:
It only records the ack without flush items, we should also record the
flushed items when `syncData = true`
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