rcfiles | my own repeatable rcfiles | Command Line Interface library

by cosven Python Version: Current License: No License

X-Ray Key Features Code Snippets Community Discussions(2)Vulnerabilities Install Support

kandi X-RAY | rcfiles Summary

rcfiles is a Python library typically used in Utilities, Command Line Interface applications. rcfiles has no bugs, it has no vulnerabilities and it has low support. However rcfiles build file is not available. You can download it from GitHub.

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Support

rcfiles has a low active ecosystem.

It has 10 star(s) with 2 fork(s). There are 3 watchers for this library.

It had no major release in the last 6 months.

rcfiles has no issues reported. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of rcfiles is current.

Quality

rcfiles has no bugs reported.

Security

rcfiles has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

License

rcfiles does not have a standard license declared.

Check the repository for any license declaration and review the terms closely.

Without a license, all rights are reserved, and you cannot use the library in your applications.

Reuse

rcfiles releases are not available. You will need to build from source code and install.

rcfiles has no build file. You will be need to create the build yourself to build the component from source.

Top functions reviewed by kandi - BETA

kandi has reviewed rcfiles and discovered the below as its top functions. This is intended to give you an instant insight into rcfiles implemented functionality, and help decide if they suit your requirements.

Get a single video
Decorate a coroutine to close the session
Create a Video instance
Play youtube
Generate a list of models
Play models
Get media from youtube
Run youtube - dl
Search for a given keyword
Create a Song object from a Tensorboard output
Return the URL of the attachment
Get a song by identifier
Patch bibili_api module

Get all kandi verified functions for this library.

rcfiles Key Features

No Key Features are available at this moment for rcfiles.

rcfiles Examples and Code Snippets

No Code Snippets are available at this moment for rcfiles.

Community Discussions

Trending Discussions on rcfiles

What is the difference between a block and a stripe?

Unable to set RCFileInputFormat as InputFormatClass in new mapreduce API

QUESTION

What is the difference between a block and a stripe?

Asked 2020-Jan-19 at 18:16

From Hive's docs:

If the table or partition contains many small RCFiles or ORC files, then the above command will merge them into larger files. In case of RCFile the merge happens at block level whereas for ORC files the merge happens at stripe level thereby avoiding the overhead of decompressing and decoding the data.

My question is: What is the difference between a block and a stripe?

...

ANSWER

Answered 2020-Jan-19 at 18:15

HDFS blocks is the lowest level, ORC stripe is upper level, these levels are completely independent, stripes in ORC do not care about lower storage layer.

HDFS blocks:

HDFS blocks is the lowest level, independent from file format. HDFS splits files in blocks to optimize storage.
One stripe can be stored in multiple blocks, one block can contain multiple stripes or part of the stripe. HDFS will split the file, not considering the stripe format or file format.
HDFS stores each file blocks metadata, writing and reading files is transparent for upper ORC reader level, HDFS will take care of all the blocks.

ORC stripes:

upper level of storage. Stripe does know nothing about blocks.
ORC is splittable on stripe level. HDFS knows nothing about ORC structure and how it can be splitted for processing. HDFS splits files in blocks to optimize storage. Minimum one stripe can be processed in single container. You can configure stripe size to fit to the block size.

Some useful links. please read for better understanding:

HDFS blocks

HDFS block vs Stripe

ORC optimizing

Big ORC stripes and block padding in S3 - very useful blog

Source https://stackoverflow.com/questions/59812366

QUESTION

Unable to set RCFileInputFormat as InputFormatClass in new mapreduce API

Asked 2017-Sep-14 at 08:34

I'm trying to read RCFiles in mapper phase and I was able to achieve the same comfortably in old mapred API.

Now, I refactoring my code to use new mapreduce API.

Using Job instead of JobConf to configure job properties. But I'm unable to set RCFileInputFormat as InputFormatClass.

Below is the compilation error that i'm getting :

...

ANSWER

Answered 2017-Sep-14 at 08:34

RCFileInputFormat uses the old MR API called mapred. You need to use one which uses the mapreduce API. Looking around you might be able to use RCFileMapReduceInputFormat from here

It seems to have the same Key/Value signature as the one you were trying to use:

Source https://stackoverflow.com/questions/46197249

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install rcfiles

You can download it from GitHub.
You can use rcfiles like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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