hchaverri commented on code in PR #4092:
URL: https://github.com/apache/hadoop/pull/4092#discussion_r852349912
##########
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/security/token/delegation/AbstractDelegationTokenSecretManager.java:
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@@ -825,4 +859,68 @@ protected void syncTokenOwnerStats() {
addTokenForOwnerStats(id);
}
}
+
+ /**
+ * DelegationTokenSecretManagerMetrics tracks token management operations
+ * and publishes them through the metrics interfaces.
+ */
+ @Metrics(about="Delegation token secret manager metrics", context="token")
+ static class DelegationTokenSecretManagerMetrics implements
IOStatisticsSource {
Review Comment:
Can we make the DurationTrackerFactory changes on a separate PR? We're might
not need to track failure durations here
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