muskan1012 commented on code in PR #5745:
URL: https://github.com/apache/ozone/pull/5745#discussion_r1668461342
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hadoop-ozone/ozone-manager/src/main/java/org/apache/hadoop/ozone/om/OMPerformanceMetrics.java:
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@@ -113,6 +113,11 @@ public static void unregister() {
@Metric(about = "Ratis local command execution latency in nano seconds")
private MutableRate validateAndUpdateCacneLatencyNs;
+ @Metric(about = "average pagination for listKeys")
+ private MutableRate listKeysAveragePagination;
+
+ @Metric(about = "ops per second for listKeys")
+ private MutableRate listKeysOpsPerSec;
Review Comment:
I implemented the cumulative number of listKeys using keyCount, which is set
to maxKeys if truncated or cacheKeyMap.size() otherwise.
listKeysAveragePagination is set using keyCount.
listKeysOpsPerSec is calculated as keyCount / ((Time.monotonicNowNanos() -
startNanos) / 1_000_000_000.0f).
Added latency tracking with addListKeysReadFromRocksDbLatencyNs.
This approach captures the metrics as you suggested.
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