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https://issues.apache.org/jira/browse/HADOOP-13127?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Xiao Chen updated HADOOP-13127:
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Attachment: HADOOP-13127.01.patch
> Correctly cache delegation tokens in KMSClientProvider
> ------------------------------------------------------
>
> Key: HADOOP-13127
> URL: https://issues.apache.org/jira/browse/HADOOP-13127
> Project: Hadoop Common
> Issue Type: Bug
> Components: security
> Affects Versions: 2.6.1
> Reporter: Xiao Chen
> Assignee: Xiao Chen
> Attachments: HADOOP-13127.01.patch
>
>
> In the initial implementation of HADOOP-10770, the authToken is updated with
> delegation tokens during {{KMSClientProvider#addDelegationTokens }} in the
> following line:
> {code}
> Token<?> token = authUrl.getDelegationToken(url, authToken, renewer);
> {code}
> HADOOP-11482 is a good fix to handle UGI issue, but has a side effect in the
> following code:
> {code}
> public Token<?> run() throws Exception {
> // Not using the cached token here.. Creating a new token here
> // everytime.
> return authUrl.getDelegationToken(url,
> new DelegationTokenAuthenticatedURL.Token(), renewer, doAsUser);
> }
> {code}
> IIUC, we should do {{setDelegationToken}} on the authToken here to cache it.
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