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https://issues.apache.org/jira/browse/HADOOP-18167?focusedWorklogId=757479&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-757479
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ASF GitHub Bot logged work on HADOOP-18167:
-------------------------------------------

                Author: ASF GitHub Bot
            Created on: 15/Apr/22 18:55
            Start Date: 15/Apr/22 18:55
    Worklog Time Spent: 10m 
      Work Description: hchaverri commented on code in PR #4092:
URL: https://github.com/apache/hadoop/pull/4092#discussion_r851436267


##########
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/security/token/delegation/AbstractDelegationTokenSecretManager.java:
##########
@@ -50,6 +59,9 @@
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+import static org.apache.hadoop.fs.statistics.impl.IOStatisticsBinding.*;

Review Comment:
   I've expanded this





Issue Time Tracking
-------------------

    Worklog Id:     (was: 757479)
    Time Spent: 2h 40m  (was: 2.5h)

> Add metrics to track delegation token secret manager operations
> ---------------------------------------------------------------
>
>                 Key: HADOOP-18167
>                 URL: https://issues.apache.org/jira/browse/HADOOP-18167
>             Project: Hadoop Common
>          Issue Type: Improvement
>            Reporter: Hector Sandoval Chaverri
>            Priority: Major
>              Labels: pull-request-available
>         Attachments: HADOOP-18167-branch-2.10-2.patch, 
> HADOOP-18167-branch-2.10.patch
>
>          Time Spent: 2h 40m
>  Remaining Estimate: 0h
>
> New metrics to track operations that store, update and remove delegation 
> tokens in implementations of AbstractDelegationTokenSecretManager. This will 
> help evaluate the impact of using different secret managers and add 
> optimizations.



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