hadoop-env | Hadoop cluster setup and related helper files

by haridas Shell Version: v0.1.4 License: No License

X-Ray Key Features Code Snippets(3)Community Discussions(10)Vulnerabilities Install Support

kandi X-RAY | hadoop-env Summary

hadoop-env is a Shell library typically used in Big Data, Docker, Kafka, Spark, Hadoop applications. hadoop-env has no bugs, it has no vulnerabilities and it has low support. You can download it from GitHub.

Hadoop cluster setup and related helper files for learning purpose.

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Support

hadoop-env has a low active ecosystem.

It has 8 star(s) with 2 fork(s). There are 2 watchers for this library.

It had no major release in the last 12 months.

hadoop-env has no issues reported. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of hadoop-env is v0.1.4

Quality

hadoop-env has no bugs reported.

Security

hadoop-env has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

License

hadoop-env 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

hadoop-env releases are available to install and integrate.

Installation instructions are not available. Examples and code snippets are available.

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hadoop-env Key Features

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hadoop-env Examples and Code Snippets

Hadoop cluster for experiments,Start hadoop cluster

Shell

Lines of Code : 25

License : No License

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./bin/start-hadoop.sh


=> Started Hadoop cluster !!
Using default tag: latest
latest: Pulling from haridasn/hadoop-cli
Digest: sha256:690e0f17af0aa7b98202ad22c4f79faedc9dae3c7a83b4e066924115e06cdeb0
Status: Image is up to date for haridasn/hadoop

Hadoop cluster for experiments,Start spark with Yarn

Shell

Lines of Code : 1

License : No License

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./bin/start-spark.sh

Hadoop cluster for experiments,Cleanup entire cluster.

Shell

Lines of Code : 1

License : No License

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bash ./bin/clean-all.sh

Community Discussions

Trending Discussions on hadoop-env

JAVA_HOME is set incorrectly -- Hadoop on Windows 10

How to export an AWS DynamoDB table to an S3 Bucket?

GCS Hadoop connector error: ClassNotFoundException: com.google.api.client.http.HttpRequestInitializer ls: No FileSystem for scheme gs

Spark uses s3a: java.lang.NoSuchMethodError

Cannot set priority of namenode process xxxxx

Some problems in installing Hadoop.ERROR: Attempting to operate on hdfs namenode as root ERROR:

Run hadoop in the Mac OS

Hive: Cannot connect to SQL inside Docker

ssh: connect to host e121a0ef81ef(container id) port 22: Connection refused in docker

Problem starting Hadoop service in Program Files

QUESTION

JAVA_HOME is set incorrectly -- Hadoop on Windows 10

Asked 2020-Oct-19 at 21:16

Context: I am trying to install Hadoop on my Windows 10 machine. I've followed the directions here and I'm having a lot of difficulty completing the process. I keep raising the following error:

The system cannot find the path specified. Error: JAVA_HOME is incorrectly set. Please update C:\Users\eric\Downloads\hadoop-3.1.4.tar\hadoop-3.1.4\hadoop-3.1.4\etc\hadoop\hadoop-env.cmd'-Dhadoop.security.logger' is not recognized as an internal or external command, operable program or batch file.

When I check the version of Java I get the following, so I know for sure Java has been installed.

...

ANSWER

Answered 2020-Oct-19 at 21:16

JAVA_HOME should be point to the root directory of a Java JDK and should be specified in the environment variables. After setting this value a restart of the terminal/application/console/IDE/command-prompt is required to make the new value active.

If you simple give: java --version it use the first java.exe version found on your PATH. JAVA_HOME and the PATH java version don't have any relation with each other.

JAVA_HOME can be specified for example to: "c:/java/jdk9" and your path includes "c:/java/jdk8/bin". In this situation java --version will give you 1.8.x.x.

JAVA_HOME is used by processes that forks to a new subproces and then used that JAVA_HOME value.

In your situation there is probably only a spacer missing in/after the call to hadoop-env.cmd ?? (not clear with the current info)

Source https://stackoverflow.com/questions/64434706

QUESTION

How to export an AWS DynamoDB table to an S3 Bucket?

Asked 2020-Sep-07 at 08:39

I have a DynamoDB table that has 1.5 million records / 2GB. How to export this to an S3?

The AWS data pipeline method to do this worked with a small table. But i am facing issues with exporting the 1.5 million record table to my S3.

At my initial trial, the pipeline job took 1 hour and failed with

java.lang.OutOfMemoryError: GC overhead limit exceeded

I had increased the namenode heap size by supplying a hadoop-env configuration object to the instances inside the EMR cluster by following this link

After increasing the heapsize my next job run attempt failed after 1 hour with another error as seen in the screenshot attached. I am not sure what to do here to fix this completely.

Also while checking the AWS Cloudwatch graphs of the instances in the EMR cluster. The core node was continuously at a 100% CPU usage.

The EMR cluster instance types (master and core node) were m3.2xlarge.

...

ANSWER

Answered 2020-Sep-07 at 08:39

The issue was with the maptasks not running efficiently. The core node was hitting 100% CPU usage. I upgraded the cluster instance types to one of the compute C series available and the export worked with no issues.

Source https://stackoverflow.com/questions/63647183

QUESTION

GCS Hadoop connector error: ClassNotFoundException: com.google.api.client.http.HttpRequestInitializer ls: No FileSystem for scheme gs

Asked 2020-Aug-22 at 10:30

I am trying to setup hadoop-connectors on my local Ubuntu 20.04 and running the test command hadoop fs -ls gs://my-bucket but I keep getting errors like the following:

...

ANSWER

Answered 2020-Aug-22 at 10:30

It seems that rebooting helped to solve the issue. After a reboot the command hadoop fs -ls gs://my-bucket works and lists the content of the bucket as expected.

Thanks to @IgorDvorzhak providing the command: hadoop classpath --glob to check if the gcs-connector-hadoop3-latest.jar can be found. I used:

Source https://stackoverflow.com/questions/63531806

QUESTION

Spark uses s3a: java.lang.NoSuchMethodError

Asked 2020-May-20 at 22:39

I'm doing something about the combination of spark_with_hadoop2.7 (2.4.3), hadoop (3.2.0) and Ceph luminous. When I tried to use spark to access ceph (for example, start spark-sql on shell), exception like below shows:

...

ANSWER

Answered 2020-May-20 at 09:56

All the hadoop-* JARs need to be 100% matching on versions, else you get to see stack traces like this.

For more information please reread

Source https://stackoverflow.com/questions/57242548

QUESTION

Cannot set priority of namenode process xxxxx

Asked 2020-Feb-19 at 09:40

I'm trying to install hadoop on my mac.

What I did are

...

ANSWER

Answered 2020-Feb-19 at 09:40

I additionally edited some files as follows:

hadoop-evn.sh

Source https://stackoverflow.com/questions/60296692

QUESTION

Some problems in installing Hadoop.ERROR: Attempting to operate on hdfs namenode as root ERROR:

Asked 2020-Feb-13 at 03:03

I am new in learning Hadoop. And I meet some problems in its configuration. Before it, I finished the configuration of JAVA, SSH, core-site.xml, hdfs-site.xml and hadoop-env.sh. Please tell me how can I solve it. Thank you very much.

...

ANSWER

Answered 2020-Feb-12 at 10:28

The reason for this issue is use of different user in installation and for starting the service. You can define the users as root in hadoop-env.sh as below:

Source https://stackoverflow.com/questions/60181800

QUESTION

Run hadoop in the Mac OS

Asked 2019-May-29 at 08:49

I try to set up to run the Hadoop in the Mac OS with brew. The steps taken are provided below,

install hadoop with the command, $brew install hadoop
Inside the folder usr/local/Cellar/hadoop/3.1.0/libexec/etc/hadoop and added the commands in the file hadoop-env.sh,

export HADOOP_OPTS="$HADOOP_OPTS -Djava.net.preferIPv4Stack=true -Djava.security.krb5.realm= -Djava.security.krb5.kdc=" export JAVA_HOME="/Library/Java/JavaVirtualMachines/jdk1.8.0_151.jdk/Contents/Home"

Finally, the file looks like the following,

...

ANSWER

Answered 2019-May-29 at 08:49

Hadoop Setup In The Pseudo-distributed Mode (Mac OS)

A. brew search hadoop

B. Go to hadoop base directory, usr/local/Cellar/hadoop/3.1.0_1/libexec/etc/hadoop and under this folder,

it requires to modify these files:

i. hadoop-env.sh

Change from

Source https://stackoverflow.com/questions/51808588

QUESTION

Hive: Cannot connect to SQL inside Docker

Asked 2019-Apr-03 at 09:06

I am trying to create a docker container with hadoop and hive. Here is my Dockerfile

...

ANSWER

Answered 2019-Mar-28 at 17:29

Try this:

Source https://stackoverflow.com/questions/55388103

QUESTION

ssh: connect to host e121a0ef81ef(container id) port 22: Connection refused in docker

Asked 2019-Mar-17 at 06:00

I have three hosts with docker installed on each of them. I want to have a distributed file system,HDFS, among three container. So, I have to make a hadoop cluster. I use this docker file to make a hadoop image.

...

ANSWER

Answered 2019-Mar-17 at 06:00

Problem solved. I did these stages: First, I made ssh passwordless among three hosts. In three host:

Source https://stackoverflow.com/questions/55119564

QUESTION

Problem starting Hadoop service in Program Files

Asked 2019-Feb-06 at 17:23

I have configured Hadoop as follows:

...

ANSWER

Answered 2019-Feb-06 at 15:49

It is because of space character in Program Files. It is better to install java in the root directory for example: C:\java

Source https://stackoverflow.com/questions/54550685

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

Vulnerabilities

No vulnerabilities reported

Install hadoop-env

You can download it from GitHub.

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