SYS-E-HTTPFAIL, Failed to connect to HDFS

[ZuhaibRana]

• SYS-E-HTTPFAIL, Failed to connect to HDFS..
• SYS,GENERAL_EXCEPTION,Failed to connect to HDFS.,Failed to connect to HDFS path '/'. Failed to get file/directory status for hadoop file </> Failed to curl_easy_perform: curl status = 6, Couldn't resolve host name (Could not resolve host: newData)

[john_wang]

Hello @ZuhaibRana ,

Looks like the host name "newData" cannot be accessed from Replicate Server. Please confirm this is the correct hostname of Hadoop NameNode, or you may change to use IP Address and get a try.

Hope this helps.

Regards,

John.

[ZuhaibRana]

Anyone can help me about these values i think i am putting wrong values for Hadoop as a Target. 

[Steve_Nguyen · Accepted solution]

General:

The Hadoop WebHDFS must be accessible from the Qlik Replicate machine.
The Hadoop Data Nodes must be accessible from the Qlik Replicate machine.
The Hadoop WebHDFS service must be running.

To access Hive using WebHCat, the Hadoop WebHCat service must be running. Other methods for accessing Hive are described later in this chapter.

The user specified in the Qlik Replicate Hadoop target settings must have access to HiveServer2.
SSL: Before you can use SSL, you first need to perform the following tasks:

Configure each NameNode and each DataNode with an SSL certificate (issued by the same CA).
Place the CA certificate on the Replicate Server machine. The certificate should be a base64-encoded PEM (OpenSSL) file.

Permissions: The user specified in the Hadoop source settings must have read permission for the HDFS directories that contain the data files.