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https://issues.apache.org/jira/browse/HADOOP-18010?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chuan-Heng Hsiao resolved HADOOP-18010.
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Resolution: Duplicate
More suitable to be in HDFS issues.
> some time delay (0.3s) for swebhdfs + kerberos + observer setting.
> ------------------------------------------------------------------
>
> Key: HADOOP-18010
> URL: https://issues.apache.org/jira/browse/HADOOP-18010
> Project: Hadoop Common
> Issue Type: Bug
> Components: auth, hdfs-client
> Affects Versions: 3.3.1
> Environment: ubuntu 20.04
> hadoop 3.3.1
> openjdk-8
>
> Reporter: Chuan-Heng Hsiao
> Priority: Major
>
> Settings:
> 1 master namenode (A), 1 standby namenode (B), 1 observer namenode (C).
> following
> [https://hadoop.apache.org/docs/stable/hadoop-project-dist/hadoop-hdfs/ObserverNameNode.html]
> except that
> dfs.client.failover.observer.auto-msync-period.<nameservice>
> is set to -1 (not auto -msync)
>
> uable to do curl - - negotiate -u ':'
> 'https://<observer>:<port>/webhdfs/v1/...'
> because it seems like due to the following issue:
> https://issues.apache.org/jira/browse/HDFS-14443
> using curl --negotiate -u ':' 'https://<master>:<port>/webhdfs/v1/...'
> can successfully get 307 redirect with the corresponding Location.
> but got
> token (token for xxx HDFS_DELEGATION_TOKEN owner=xxx renewer=xxx
> masterKeyID=ooo) can't be found in cache"
> if redirect the url within 300ms.
>
> Not issue if waiting for more than 300ms and then do the redirect.
> No issue if changing (C) to Standby (no observers) (and redirect within 10 ms)
>
>
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