Schedule a task command line task with windows task scheduler.

Scheduling a command on the windows task scheduler can be tricky. So below some things to have in mind.

In the "Action" tab:

1- start program

2- Program/script: C:\Windows\System32\cmd.exe

3- Add arguments: /c nameOfTheScript.bat

    If you wanna log error use the following:

     script.bat > logall.txt 2>&1

     If you wanna append on the the file:

     script.bat >> logall.txt 2>&1

 4- Start In:  c:/someDir (without the back slash)

How to send files from HDFS to S3 compressed

Below is a code in bash to transfer all files from HDFS to S3, and compress them.

	#!/bin/bash
	# ./s3check /user/raw/2016
	# it will check recursivly check all files on that path on S3, with the equivalent path on s3.
	# if the file is not on s3 it will created with compresion
	if [ -z "$1" ]; then
	echo usage: $0 directory
	exit
	fi
	hdfsDir=$1
	echo hdfs dir: $hdfsDir
	files=$(hadoop fs -ls -R $hdfsDir/*/ | awk '{print $NF}' | grep FlumeData.*$ |tr '\n' '\n') # change FlumeData with the name of the files u wanna check
	let count=0
	let errors=0
	let checked=0
	for file in $files
	do
	lsFile=$( aws s3 ls s3://bucket/directory$file ) #change the bucket and the directory name
	fileArr=( $lsFile )
	fileSize=${fileArr[2]}
	if [[ -n "$lsFile" ]] && [[ $fileSize -gt 500 ]]; then
	let checked=checked+1
	echo "Checked: $file"
	else
	echo copying: $file
	if (hdfs dfs -cat hdfs://$file |gzip| aws s3 cp - s3://btr-dataPlatform/backup$file.gz); then
	let count=count+1
	else
	echo error on $file
	let errors=errors+1
	fi
	fi
	done
	echo "Count: $count"
	echo "Errors: $errors"
	echo "Checked: $checked"

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