Chuan-Heng Hsiao created HDFS-16325:
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Summary: some time delay (0.3s) for swebhdfs + kerberos + observer
setting.
Key: HDFS-16325
URL: https://issues.apache.org/jira/browse/HDFS-16325
Project: Hadoop HDFS
Issue Type: Bug
Components: ha, webhdfs
Affects Versions: 3.3.1
Environment: ubuntu 20.04
hadoop 3.3.1
openjdk-8
Reporter: Chuan-Heng Hsiao
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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