jtuglu-netflix commented on code in PR #18014:
URL: https://github.com/apache/druid/pull/18014#discussion_r2094992642
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server/src/main/java/org/apache/druid/segment/realtime/SegmentGenerationMetrics.java:
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@@ -297,7 +313,12 @@ public SegmentGenerationMetrics snapshot()
messageGapSnapshot = System.currentTimeMillis() - maxTimestamp;
}
retVal.messageGap.set(messageGapSnapshot);
- retVal.messageGapStats.set(messageGapStats.getAndSet(new
MessageGapStats()));
Review Comment:
Let's get this merged and follow-up with a snapshot fix later. I still don't
think adding the Snapshot class will change the access-pattern across threads,
considering a read/reset on the gap statistics is still necessary (i.e you need
to pay the price for thread-safety either way).
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