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https://issues.apache.org/jira/browse/HADOOP-13693?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15553696#comment-15553696
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Xiao Chen commented on HADOOP-13693:
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This is audit log, so incompatible by default.
We have several choices to improve:
# since this is an {{OPTIONS}} http method, maybe we can hence not log it into
audit logs.
# change the {{AuthenticationFilter}} to no longer return an error for this
type of requests.
# update the audit message to give better context.
IMO logging is theoretically correct, and changing the server code feels risky.
So posting a patch to do #3 here.
[~xyao], I see you helped resolving the linked HDFS-10428. What's your opinion
about this one? Also ping [~asuresh] for input. Thank you both in advance.
> Make the SPNEGO initialization OPTIONS message in kms audit log more
> admin-friendly
> -----------------------------------------------------------------------------------
>
> Key: HADOOP-13693
> URL: https://issues.apache.org/jira/browse/HADOOP-13693
> Project: Hadoop Common
> Issue Type: Improvement
> Components: kms
> Reporter: Xiao Chen
> Assignee: Xiao Chen
> Priority: Minor
> Attachments: HADOOP-13693.01.patch
>
>
> For a successful kms operation, kms-audit.log shows an UNAUTHENTICATED
> ErrorMsg:'Authentication required' message before the OK messages. This is
> expected, and due to the spnego authentication sequence.
> {noformat}
> 2016-01-31 21:07:04,671 UNAUTHENTICATED RemoteHost:10.0.2.15 Method:OPTIONS
> URL:https://quickstart.cloudera:16000/kms/v1/keyversion/ZJfn4lfNXxy068gqEmhxRCFljzoKEKDDR9ZJLO32vqq/_eek?eek_op=decrypt
> ErrorMsg:'Authentication required'
> 2016-01-31 21:07:04,911 OK[op=DECRYPT_EEK, key=cloudera, user=cloudera,
> accessCount=1, interval=0ms]
> 2016-01-31 21:07:15,104 OK[op=DECRYPT_EEK, key=cloudera, user=cloudera,
> accessCount=1, interval=10193ms]
> {noformat}
> However, admins/auditors see this and can easily get confused/alerted. We
> should make it obvious this is benign, and help them focus on the real errors.
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