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https://issues.apache.org/jira/browse/ZOOKEEPER-4857?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17879593#comment-17879593
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LoggingResearch commented on ZOOKEEPER-4857:
--------------------------------------------
To make it clear on how to fix the issue, we upload the comparison between the
original version and the log-enhanced version in the attached file
`original-vs-log-enhanced.md`. The log-enhanced version is generated
automatically utilizing our proposed tool.
> Enhancing Logging for Ephemeral Type Handling in EphemeralType.get() Method
> ---------------------------------------------------------------------------
>
> Key: ZOOKEEPER-4857
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-4857
> Project: ZooKeeper
> Issue Type: Improvement
> Components: server
> Affects Versions: 3.9.2
> Environment: Zookeeper Version: 3.9.2
> Location:
> {{{}`zookeeper/zookeeper-server/src/main/java/org/apache/zookeeper/server/EphemeralType.java`{}}},in
> {{`get`}} method. Lines 169-187.
> Reporter: LoggingResearch
> Priority: Major
> Attachments: EphemeralTypeTest.java, original-vs-log-enhanced.md
>
>
> The {{EphemeralType.get(long ephemeralOwner)}} method in the ZooKeeper
> codebase is responsible for determining the type of ephemeral node based on
> the provided {{ephemeralOwner}} value. The current implementation lacks
> sufficient logging to diagnose and understand how ephemeral types are
> determined, especially when dealing with extended ephemeral types. By
> enhancing the method with detailed logging, we can make it easier to track
> the logic flow and pinpoint issues when handling different {{ephemeralOwner}}
> values, particularly under scenarios involving extended ephemeral types and
> emulation of older versions.
>
> *Expected Behavior:*
> The method should log the steps it takes to determine the {{EphemeralType}}
> based on the provided {{ephemeralOwner}} value. This includes logging whether
> extended ephemeral types are enabled, if specific properties like TTL
> emulation are set, and the final {{EphemeralType}} that is returned. For
> invalid {{ephemeralOwner}} values, an error should be logged before an
> exception is thrown.
>
> *How-to-Fix:*
> We propose to enhance the {{EphemeralType.get(long ephemeralOwner)}} method
> with logging statements that detail the decision-making process for returning
> an {{{}EphemeralType{}}}. These logs will include the status of feature
> flags, the type of {{{}ephemeralOwner{}}}, and error conditions.
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