kamalcph commented on code in PR #20913:
URL: https://github.com/apache/kafka/pull/20913#discussion_r3278939155
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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 keep using -1 as the effective value when local retention is unlimited
and lag is -1.
This approach is also fine.
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