Hadoop as target

Pranita123 — Wed, 03 Apr 2024 05:51:05 GMT

Hello Community,

We're having trouble connecting to HDFS(Hadoop manage endpoint) in Linux.

The error message says: "Failed to connect to HDFS path '/'" and "Failed to curl_easy_perform: curl status = 56, Failure when receiving data from the peer (CONNECT tunnel failed, response 503)."

In addition, initially, we were able to successfully establish a connection with the target and successfully load data into it.

Your assistance in this situation is greatly valued.

Regards,

Pranita

Re: Hadoop as target

john_wang — Thu, 04 Apr 2024 03:24:46 GMT

Hello @Pranita123 ,

Thanks for reaching out to Qlik Community!

There are many reason may lead the same error, includes:

Hive ODBC version
- You might disable the Hive ODBC Access to know if the error caused by it
Timeout issue
- Set internal parameter executetimeout in target endpoint and increasing it to higher value eg 6000
if the account have enough permission to access HDFS folder "/"
- in general the data will be written to a sub-folder under "/"
We ever experienced such error caused by a bug on the Cloudera side
- Did you ever upgrade Hadoop and then got the error
Set below components logging level to Trace or Verbose to get great detailed information from task log file
- COMMUNICATION/FILE_FACTORY/TARGET_LOAD/TARGET_APPLY

Hope this helps.

John.

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Hadoop as target

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