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https://issues.apache.org/jira/browse/KYLIN-4697?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17178763#comment-17178763
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Zhong Yanghong commented on KYLIN-4697:
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There's one more thing we need to take care of. In HBase, the rowkey is
case-sensitive. While in Kylin, the user name is case-insensitive. We need to
avoid the case that there's multiple HBase records existing for the same user.
Otherwise, WriteConflictException may occur when updating user info.
> User info update logic is not correct
> -------------------------------------
>
> Key: KYLIN-4697
> URL: https://issues.apache.org/jira/browse/KYLIN-4697
> Project: Kylin
> Issue Type: Bug
> Reporter: Zhong Yanghong
> Assignee: Zhong Yanghong
> Priority: Major
>
> There are mainly two issues:
> * The logic for KylinAuthenticationProvider.needUpdateUser() is not correct
> due to not considering ALL_USERS
> * The logic of updateUser in some places is not correct due to not following
> copy on write.
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