Saurabh Bajaj created ARROW-5922:
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Summary: Unable to connect to HDFS from a worker/data node on a
Kerberized cluster using pyarrow' hdfs API
Key: ARROW-5922
URL: https://issues.apache.org/jira/browse/ARROW-5922
Project: Apache Arrow
Issue Type: Bug
Components: Python
Affects Versions: 0.14.0
Environment: Unix
Reporter: Saurabh Bajaj
Fix For: 0.14.0
Here's what I'm trying:
{{```}}
{{import pyarrow as pa }}
{{conf = \{"hadoop.security.authentication": "kerberos"} }}
{{fs = pa.hdfs.connect(kerb_ticket="/tmp/krb5cc_44444", extra_conf=conf)}}
{{```}}
However, when I submit this job to the cluster using {{Dask-YARN}}, I get the
following error:
```
{{File "test/run.py", line 3 fs =
pa.hdfs.connect(kerb_ticket="/tmp/krb5cc_44444", extra_conf=conf) File
"/opt/hadoop/data/10/hadoop/yarn/local/usercache/hdfsf6/appcache/application_1560931326013_183242/container_e47_1560931326013_183242_01_000003/environment/lib/python3.7/site-packages/pyarrow/hdfs.py",
line 211, in connect File
"/opt/hadoop/data/10/hadoop/yarn/local/usercache/hdfsf6/appcache/application_1560931326013_183242/container_e47_1560931326013_183242_01_000003/environment/lib/python3.7/site-packages/pyarrow/hdfs.py",
line 38, in __init__ File "pyarrow/io-hdfs.pxi", line 105, in
pyarrow.lib.HadoopFileSystem._connect File "pyarrow/error.pxi", line 83, in
pyarrow.lib.check_status pyarrow.lib.ArrowIOError: HDFS connection failed}}
{{```}}
I also tried setting {{host (to a name node)}} and {{port (=8020)}}, however I
run into the same error. Since the error is not descriptive, I'm not sure which
setting needs to be altered. Any clues anyone?
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