Using Python library to run HDFS with Ignite

[nsemichev <ns...@gmail.com>]

I configured HDFS Client on Ubuntu 16.04 and I can successfully run this
command: 
hdfs --config /etc/hadoop/conf/ dfs -ls / 
The config parameter takes the file core-site.xml from etc/hadoop/conf/ 
  
From core-site.xml 
  
<property>
    <name>fs.default.name</name>
    <value>igfs://igfs@10.200.10.1:10500</value>
</property>
  
Then I tried using Python hdfs3 library which uses libhdfs3. 
  
>>> from hdfs3 import HDFileSystem 
>>> hdfs = HDFileSystem(host='10.200.10.1', port=10500) 
  
When I run this code, I get the following error message:	
ConnectionError: Connection Failed: HdfsRpcException: Failed to invoke RPC
call "getFsStats" on server "10.200.10.1:10500" 

I opened an issue here: https://github.com/dask/hdfs3/issues/123

It seems like it should work; has anyone tried using hdfs3 Python library or
some other Python libraries to work with Ignite?



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Re: Using Python library to run HDFS with Ignite

[Mikhail Cherkasov <mc...@gridgain.com>]

Hi,

Did you specify:

  <property>
    <name>fs.igfs.impl</name>
    <value>org.apache.ignite.hadoop.fs.v1.IgniteHadoopFileSystem</value>
  </property>
  <property>
    <name>fs.AbstractFileSystem.igfs.impl</name>
    <value>org.apache.ignite.hadoop.fs.v2.IgniteHadoopFileSystem</value>
  </property>

in core-site.xml? may be hadoop find this fs implementation automatically
in lib dir, I'm note sure about this.

Any way Hadoop uses special implementation of file
system(IgniteHadoopFileSystem) to work with IGFS,
so I don't think that we have this implementation for python.

Thanks,
Mikhail.

On Mon, Jul 10, 2017 at 6:32 PM, nsemichev <ns...@gmail.com> wrote:

> I configured HDFS Client on Ubuntu 16.04 and I can successfully run this
> command:
> hdfs --config /etc/hadoop/conf/ dfs -ls /
> The config parameter takes the file core-site.xml from etc/hadoop/conf/
>
> From core-site.xml
>
> <property>
>     <name>fs.default.name</name>
>     <value>igfs://igfs@10.200.10.1:10500</value>
> </property>
>
> Then I tried using Python hdfs3 library which uses libhdfs3.
>
> >>> from hdfs3 import HDFileSystem
> >>> hdfs = HDFileSystem(host='10.200.10.1', port=10500)
>
> When I run this code, I get the following error message:
> ConnectionError: Connection Failed: HdfsRpcException: Failed to invoke RPC
> call "getFsStats" on server "10.200.10.1:10500"
>
> I opened an issue here: https://github.com/dask/hdfs3/issues/123
>
> It seems like it should work; has anyone tried using hdfs3 Python library
> or
> some other Python libraries to work with Ignite?
>
>
>
> --
> View this message in context: http://apache-ignite-users.
> 70518.x6.nabble.com/Using-Python-library-to-run-HDFS-
> with-Ignite-tp14595.html
> Sent from the Apache Ignite Users mailing list archive at Nabble.com.
>



-- 
Thanks,
Mikhail.