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My requirements:

I want to check the status of master so that my batches can adapt to changes of master automatically, then I will change the environment variable and restart the job.

However, when I try to use

hdfs haadmin -getServiceState nn1

to get the status, I was told:

Operation failed: Access denied for user xxx. Superuser privilege is required

Do I have other ways to get the status of master?

Nasreddine Galfout
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Simon Zhang
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  • Possible duplicate of [Permission denied at hdfs](https://stackoverflow.com/questions/11593374/permission-denied-at-hdfs) – Alban Linard Sep 22 '17 at 09:18

1 Answers1

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question closed, i found a much easier way by putting two masters together using a comma separating them. export MASTER=spark://master1:7077,master2:7077

Simon Zhang
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