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https://issues.apache.org/jira/browse/HADOOP-15698?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16594031#comment-16594031
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Ajay Kumar commented on HADOOP-15698:
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[~knanasi] thanks for submitting the patch. Any plans to add a unit test ?
Seems adding unit test is not straight forward but we can test logging in
KMSWebServer.
> KMS startup logs don't show
> ---------------------------
>
> Key: HADOOP-15698
> URL: https://issues.apache.org/jira/browse/HADOOP-15698
> Project: Hadoop Common
> Issue Type: Bug
> Components: kms
> Affects Versions: 3.1.0
> Reporter: Kitti Nanasi
> Assignee: Kitti Nanasi
> Priority: Major
> Attachments: HADOOP-15698.001.patch
>
>
> During KMs startup, log4j logs don't show up resulting in important logs
> getting omitted. This happens because log4 initialisation only happens in
> KMSWebApp#contextInitialized and logs written before that don't show up.
> For example the following log never shows up:
> [https://github.com/apache/hadoop/blob/a55d6bba71c81c1c4e9d8cd11f55c78f10a548b0/hadoop-common-project/hadoop-auth/src/main/java/org/apache/hadoop/security/authentication/util/ZKSignerSecretProvider.java#L197-L199]
> Another example is that the KMS startup message never shows up in the kms
> logs.
> Note that this works in the unit tests, because MiniKMS sets the log4j system
> property.
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