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New Contributor
Posts: 1
Registered: ‎05-18-2017

HDFS Write error

Hi all,

 

i'm facing an error trying to put some file in my dfs.

 

[FATAL]: test_hadoop.test_input_hdfs_0_1.test_input_hdfs - tHDFSPut_1 Operation category WRITE is not supported in state standby

 

If my understanding is good : i'm using the standby instance, which is read only ?

 

 

regards

New Contributor
Posts: 4
Registered: ‎11-25-2016

Re: HDFS Write error

[ Edited ]

Hi,

it looks like if you are trying to contact a namenode in stand-by mode. Maybe you have a cluster on HA configuration? in that case the cluster has two namenodes (an active one and another one in stand-by mode).
Be sure that the namenode DSN is the active one in the request

 

http://<namenode>:50070/webhdfs/v1...

 

To check if a namenode is active, you can check the list of namenode and their status in CDH manager under HDFS istances or, if you know the namenode's DNS, reading the information on webpage

 

http://<namenode>:50070

 

You should have a sentence like

 

Overview '<namenode>:8020' (active)

 

for the active one.

 

Best regards

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