HDFS some datanodes of cluster are suddenly disconnected while reducers are running

I have 8 slave computers and 1 master computer for running Hadoop (ver 0.21) some datanodes of cluster are suddenly disconnected while I was running MapReduce code on 10GB data After all mappers...

Error in Dask connecting to HDFS

I was trying to connect to HDFS using dask, following the blog then I installed the hdfs3 from the docs using conda. When I import the hdfs3 it gives me an error: ImportError: Can not find the...

Reading files with hdfs3 fails

I am trying to read a file on HDFS with Python using the hdfs3 module. import hdfs3 hdfs = hdfs3.HDFileSystem(host='xxx.xxx.com', port=12345) hdfs.ls('/projects/samplecsv/part-r-00000') This...

What's the best module for interacting with HDFS with Python3?

I see there is hdfs3, snakebite, and some others. Which one is the best supported and comprehensive?

Python hdfs3 fails to list non-owned files

I am trying to list files from a HDFS directory using hdfs3 library: Python 3.5.2 |Anaconda 4.2.0 (64-bit) >>> from hdfs3 import HDFileSystem >>> hdfs = HDFileSystem(host='abc.com', port=8020) >>>...

Can not find the shared library:libhdfs3.so

everyone. I'm try to used Dask with Distributed + HDFS for processing some files. when I installed the distributed try to install the HDFS3 plugins, the error was : Can not find the shared...

Dask hdfs3 usage on kerberized cluster

Trying to use dask to read a directory of parquet files on a kerberized HDFS cluster, using the following commands: import hdfs3 hdfs = hdfs3.HDFileSystem(<NAMENODE_FQDN>, port=8020) Which...

How to run parallelized python jobs on yarn using Dask?

I have a couple of questions on using Dask with Hadoop/Yarn. 1 ) How do I connect Dask to Hadoop/YARN and parallelize a job? When I try using: from dask.distributed import Client client =...

connecting pyarrow with libhdfs3

I'm trying to connect to a hadoop cluster via pyarrows' HdfsClient / hdfs.connect(). I noticed pyarrows' have_libhdfs3() function, which returns False. How does one go about getting the required...

Convert 17GB JSON file to a numpy array

I have a big 17 GB JSON file placed in hdfs . I need to read that file and convert into nummy array which is then passed into K-Means clustering algorithm. I tried many ways but system slows down...

How to get the result of an SQL query from Big Query in Airflow?

Using Airflow I want to get the result of an SQL Query fomratted as a pandas DataFrame. def get_my_query(*args, **kwargs) bq_hook = BigQueryHook(bigquery_conn_id='my_connection_id',...

how to use python upload a local file on HDFS with hdfs3 lib

I'm trying to upload a local file on HDFS using python script. Right now, I have Hue(username and password), my ip address. I wanna use hdfs3 lib from python. I basically know how to automate this...

Python on Hadoop read blocks

I have the following problem. I want to extract data from hdfs (a table called 'complaint'). I wrote the following script which actually works: import pandas as pd from hdfs import...

Reading csv file from hdfs using dask and pyarrow

We are trying out dask_yarn version 0.3.0 (with dask 0.18.2) because of the conflicts between the boost-cpp i'm running with pyarrow version 0.10.0 We are trying to read a csv file from hdfs -...

What is the root cause of distributed.scheduler.KilledWorker exception?

I'm trying to run a Dask job on a YARN cluster. This jobs reads and writes to HDFS using the hdfs3 library. When I run it on a cluster without a Kerberos security layer, it runs fine. But, on a...

ImportError: libarrow.so.14: cannot open shared object file: No such file or directory | python

I am getting below error when I am trying to install below library using File (.tar.bz2) . I dont have Internet connection in my hadoop cluster that is the reason I am using below command to...

ImportError: Cannot find the shared library: libhdfs3.so with Anaconda python

Working with below version of Python: (base) [[email protected] lib]# python Python 3.7.3 (default, Mar 27 2019, 22:11:17) [GCC 7.3.0] :: Anaconda, Inc. on linux Type "help",...

WinError 126 Error when connecting to HDFS using hdfs3

I am trying to read a file of a work HDFS location using the following code: import hdfs3 from hdfs3 import HDFileSystem hdfs=HDFileSystem(host='host',port='port') with hdfs.open('FILE') as f: ...

Kafka to hdfs3 sink Missing required configuration "confluent.topic.bootstrap.servers" which has no default value

Status My HDFS was installed via ambari, HDP. I'm Currently trying to load kafka topics into HDFS sink. Kafka and HDFS was installed in the same machine x.x.x.x. I didn't change much stuff from...

ERROR: Could not find a version that satisfies the requirement vineyard (from versions: none)

I am trying to install the package "grammar" whose dependencies include the packages "vineyard" and "Graphviz". I am using Pycharm, and I was able to install Graphviz without any issues. However,...