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https://issues.apache.org/jira/browse/YARN-1214?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jian He updated YARN-1214:
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Attachment: YARN-1214.1.patch
New patch fixed the comments.
bq. TestClientToAMTokens. Assert that clientToken is null before and not null
after.
Turns out this is to test AM attempt can get the master key after it's
registered.
> Register ClientToken MasterKey in SecretManager after it is saved
> -----------------------------------------------------------------
>
> Key: YARN-1214
> URL: https://issues.apache.org/jira/browse/YARN-1214
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: resourcemanager
> Reporter: Jian He
> Assignee: Jian He
> Attachments: YARN-1214.1.patch, YARN-1214.patch
>
>
> Currently, app attempt ClientToken master key is registered before it is
> saved. This can cause problem that before the master key is saved, client
> gets the token and RM also crashes, RM cannot reloads the master key back
> after it restarts as it is not saved. As a result, client is holding an
> invalid token.
> We can register the client token master key after it is saved in the store.
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