jiafu1115 commented on code in PR #20913:
URL: https://github.com/apache/kafka/pull/20913#discussion_r3261872082
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storage/src/main/java/org/apache/kafka/server/log/remote/storage/RemoteLogManager.java:
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@@ -937,6 +946,68 @@ List<EnrichedLogSegment> candidateLogSegments(UnifiedLog
log, Long fromOffset, L
return candidateLogSegments;
}
+ private boolean delayCopy(LogConfig logConfig, LogSegment previousSeg,
long currentTimeMs, long totalLogSize, long cumulativeSize) {
+ if (logConfig == null) {
+ return false;
+ }
+
+ long copyLagMs = logConfig.remoteCopyLagMs();
+ long copyLagBytes = logConfig.remoteCopyLagBytes();
+ if (logger.isTraceEnabled()) {
+ logger.trace("delayCopy check for segment {}: copyLagMs={},
copyLagBytes={}, currentTimeMs={}, totalLogSize={}, cumulativeSize={},
sizeLagBytes={}",
+ previousSeg, copyLagMs, copyLagBytes, currentTimeMs,
totalLogSize, cumulativeSize, totalLogSize - cumulativeSize);
+ }
+
+ if (copyLagMs == 0 || copyLagBytes == 0) {
+ return false;
+ }
+
+ boolean needCheckCopyLagMs = copyLagMs > 0;
+ boolean needCheckCopyLagBytes = copyLagBytes > 0;
+
+ // When no lag delay is enabled, upload immediately.
+ if (!needCheckCopyLagMs && !needCheckCopyLagBytes) {
Review Comment:
I add the missed test case. Maybe the only difference about result between
our code is whether this new added test case can passed or not.
<img width="756" height="500" alt="image"
src="https://github.com/user-attachments/assets/189e894a-4169-4c1b-87bd-ef446b0b2862";
/>
another tiny difference is performance instead of result:
my code approach:
if one is MAX value. I don't check the configure.
your code approach:
if one is MAX value. you still check it and get the result is false.
` shouldUploadNow = segmentAgeMs >= effectiveCopyLagMs;
`
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