Posts Tagged ‘taskrunner’

Taskrunner & workergroup threads

Written by mannem on November 2, 2016. Posted in Data Pipelines

http://docs.aws.amazon.com/datapipeline/latest/DeveloperGuide/dp-taskrunner-config-options.html

Task Runner Configuration Options :

--tasks : The number of task poll threads to run simultaneously. Optional. The default is 2. however, these threads are just for polling.

Maximum number of Activities that can be run in parallel by Taskrunner :

If you have 10 Activities(which may be from different Data-pipelines) currently running on that single Taskrunner worker-group , new activities cannot be processed by this taskrunner and will be waiting for the previous activities to finish. i.e Taskrunner tied to a worker-group has a hard limit that it can execute a Max of 10 Activities in Parallel.

For example :

Suppose 10 activities are to be executed. By default poller pulls 2 Tasks(Activities) per second. In the next seconds it pulls another 2 activities. so, at the end of 5 seconds , there will be 10 activities submitted by poller to worker-group.

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Run Data Pipelines Taskrunner jar forever on Existing Resources

Written by mannem on March 3, 2016. Posted in Data Pipelines

When you run Data Pipelines Taskrunner on your own resource, according to the following document , it do not exit out from shell.

To get the Taskrunner detached from the terminal, use nohup , nohup

nohup java -jar /home/ec2-user/TaskRunner.jar —config /home/ec2-user/credentials.json --workerGroup=group-emr --region=us-west-2 --logUri=s3://mannem.ne/foldername &

An alternative is using screen/tmux/byobu, which will keep the shell running, independent of the terminal.

Now, if you want to run this Taskrunner every time your machine Boots, It really depends on the OS distribution of your machine.

On a Amazon linux which are based on RedHat(RHEL) :

Create a script like taskrunner-bootup

#!/bin/bash
# chkconfig: 345 99 10
#  says that the script must run at levels 3, 4 and 5 and the priority for start/stop is 99 and 10.
# description: auto start Taskrunner 
#
case "$1" in
 'start')
   echo "Starting Taskrunner";
su - ec2-user -c "cd /home/ec2-user/ ; nohup java -jar /home/ec2-user/TaskRunner.jar —config /home/ec2-user/credentials.json --workerGroup=group-emr --region=us-west-2 --logUri=s3://logbucket.ne/foldername & ; 
 'stop')
   echo "Killing Taskrunner";
kill -9 `pgrep -f TaskRunner.jar`;
esac

#!/bin/bash

# chkconfig: 345 99 10

# says that the script must run at levels 3, 4 and 5 and the priority for start/stop is 99 and 10.

# description: auto start Taskrunner

case "$1" in

'start')

echo "Starting Taskrunner";

su - ec2-user -c "cd /home/ec2-user/ ; nohup java -jar /home/ec2-user/TaskRunner.jar —config /home/ec2-user/credentials.json --workerGroup=group-emr --region=us-west-2 --logUri=s3://logbucket.ne/foldername & ;

'stop')

echo "Killing Taskrunner";

kill -9 `pgrep -f TaskRunner.jar`;

esac

Put your script in /etc/init.d/, owned by root and executable. At the top of the script, you can give a directive for chkconfig. Example, the following script is used to start this Taskrunner java application as ec2-user. As user root you can use chkconfig to enable or disable the script at startup,

chkconfig –list taskrunner-bootup
chkconfig –add taskrunner-bootup
and you can use service start/stop taskrunner-bootup

You can also use cloud-init if you wish.

If this is an AMI, you can use USER-DATA script which only works during first start.

Here’s some solutions for

Ubuntu : http://www.askubuntu.com/a/228313
Debian : http://www.cyberciti.biz/tips/linux-how-to-run-a-command-when-boots-up.html

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All about AWS Data-Pipelines Taskrunner

Written by mannem on December 6, 2015. Posted in Data Pipelines

How Data-Pipeline installs taskrunner on Ec2 instance?

Data-pipeline launches an Ec2 instances on your behalf using with the following user-data script.

————————————————-

#!/bin/bash
set -x -e
wget -O remote-runner-install -N 'http://datapipeline-us-west-2.s3.amazonaws.com/us-west-2/bootstrap-actions/latest/TaskRunner/install-remote-runner-ec2-v2'

## Do not remote existing parameters ever. Add new ones at the end.
bash remote-runner-install --workerGroup='resource:df-0663241HXFGFQS14TQG_@EC2ResourceObj_2015-12-06T04:48:34' --endpoint='https://datapipeline.us-west-2.amazonaws.com' --region='us-west-2' --logUri='none' --taskRunnerId='667b7bc3-7dc9-41a5-a313-29e299b613b5' --zipFile='http://datapipeline-us-west-2.s3.amazonaws.com/us-west-2/software/latest/TaskRunner/TaskRunner-1.0.zip' --mysqlFile='http://datapipeline-us-west-2.s3.amazonaws.com/us-west-2/software/latest/TaskRunner/mysql-connector-java-bin.jar' --ec2User='ec2-user' --proxyHost='' --proxyPort='-1' --username='' --password='' --windowsDomain='' --windowsWorkgroup=''

#!/bin/bash

set -x -e

wget -O remote-runner-install -N 'http://datapipeline-us-west-2.s3.amazonaws.com/us-west-2/bootstrap-actions/latest/TaskRunner/install-remote-runner-ec2-v2'

## Do not remote existing parameters ever. Add new ones at the end.

bash remote-runner-install --workerGroup='resource:df-0663241HXFGFQS14TQG_@EC2ResourceObj_2015-12-06T04:48:34' --endpoint='https://datapipeline.us-west-2.amazonaws.com' --region='us-west-2' --logUri='none' --taskRunnerId='667b7bc3-7dc9-41a5-a313-29e299b613b5' --zipFile='http://datapipeline-us-west-2.s3.amazonaws.com/us-west-2/software/latest/TaskRunner/TaskRunner-1.0.zip' --mysqlFile='http://datapipeline-us-west-2.s3.amazonaws.com/us-west-2/software/latest/TaskRunner/mysql-connector-java-bin.jar' --ec2User='ec2-user' --proxyHost='' --proxyPort='-1' --username='' --password='' --windowsDomain='' --windowsWorkgroup=''

————————————————-

> It downloads a script called remote-runner-install which installs the Taskrunner with options passed from Data-Pipelines service.

Here’s how the script looks like:

#!/bin/bash

##  Task Runner installation for a datapipeline managed Ec2 resource
##  This is run as cloudinit.  See the logs in /var/log/cloud-init-log

set -x -e

for key in "$@"
do
case $key in
    --workerGroup=*)
    WORKER_GROUP="${key#*=}"
    echo "WORKER_GROUP = $WORKER_GROUP"
    shift
    ;;

    --endpoint=*)
    ENDPOINT="${key#*=}"
    echo "ENDPOINT = $ENDPOINT"
    shift
    ;;

    --region=*)
    REGION="${key#*=}"
    echo "REGION = $REGION"
    shift
    ;;

    --logUri=*)
    LOG_URI="${key#*=}"
    echo "LOG_URI = $LOG_URI"
    shift
    ;;

    --taskRunnerId=*)
    TASKRUNNER_ID="${key#*=}"
    echo "TASKRUNNER_ID = $TASKRUNNER_ID"
    shift
    ;;

    --zipFile=*)
    ZIP_FILE="${key#*=}"
    echo "ZIP_FILE = $ZIP_FILE"
    shift
    ;;

    --mysqlFile=*)
    MYSQL_FILE="${key#*=}"
    echo "MYSQL_FILE = $MYSQL_FILE"
    shift
    ;;

    --ec2User=*)
    EC2_USER="${key#*=}"
    echo "EC2_USER = $EC2_USER"
    shift
    ;;

    --proxyHost=*)
    PROXY_HOST="${key#*=}"
    echo "PROXY_HOST = $PROXY_HOST"
    shift
    ;;

    --proxyPort=*)
    PROXY_PORT="${key#*=}"
    echo "PROXY_PORT = $PROXY_PORT"
    shift
    ;;

    --username=*)
    USERNAME="${key#*=}"
    echo "USERNAME = $USERNAME"
    shift
    ;;

    --password=*)
    PASSWORD="${key#*=}"
    echo "PASSWORD = $PASSWORD"
    shift
    ;;

    --windowsDomain=*)
    WINDOWS_DOMAIN="${key#*=}"
    echo "WINDOWS_DOMAIN = $WINDOWS_DOMAIN"
    shift
    ;;

    --windowsWorkgroup=*)
    WINDOWS_WORKGROUP="${key#*=}"
    echo "WINDOWS_WORKGROUP = $WINDOWS_WORKGROUP"
    shift
    ;;

    *)
    echo "Unlnown option : $key"
    ;;

esac
done

# prepare installation directory in /mnt/taskRunner
#   using /media/ephemeral0
if [ -d /media/ephemeral0 ] && ! [ -d /mnt/taskRunner ] ; then
  mkdir -p /media/ephemeral0/mnt/taskRunner
  mkdir -p /mnt
  chown -R $EC2_USER /media/ephemeral0/mnt/taskRunner
  ln -s /media/ephemeral0/mnt/taskRunner /mnt/taskRunner
fi

mkdir -p /mnt/taskRunner
chown -R $EC2_USER /mnt/taskRunner

# allow sudo to run for ec2 user without a tty
sudofile=task-runner-ec2-user
cat > /tmp/$sudofile <<EOF
Defaults:ec2-user !requiretty
EOF
chmod 600 /tmp/$sudofile
mv /tmp/$sudofile /etc/sudoers.d/$sudofile

## Install jdk 1.7 when version is less on amazon linux
KERNEL=`uname -r`
VERSION=`java -version 2>&1  | awk -F '"' '/version/ {print $2}'`

if [[ ($KERNEL =~ "amzn") && ( $VERSION  < "1.7" ) ]]; then
    echo "Found : KERNEL : $KERNEL  JAVA VERSION : $VERSION"
    echo "Upgrading to java 1.7"
    yum install java-1.7.0-openjdk -y
fi

su - $EC2_USER <<EOF
  cd /mnt/taskRunner
  wget -O taskRunner.zip $ZIP_FILE
  wget -O $(basename $MYSQL_FILE) $MYSQL_FILE
  unzip taskRunner.zip
  chmod 500 aws-datapipeline-taskrunner-v2.sh
  ./aws-datapipeline-taskrunner-v2.sh --workerGroup="$WORKER_GROUP" --endpoint="$ENDPOINT" --region="$REGION" --logUri="$LOG_URI" --taskRunnerId="$TASKRUNNER_ID" --proxyHost="$PROXY_HOST" --proxyPort="$PROXY_PORT" --username="$USERNAME" --password="$PASSWORD" --windowsDomain="$WINDOWS_DOMAIN" --windowsWorkgroup="$WINDOWS_WORKGROUP" >> run.out 2>&1 < /dev/null &
  disown %
EOF

if [ -d /etc/init.d ] ; then
cat > /tmp/datapipeline-taskrunnner-service << EOF
#!/bin/bash

### BEGIN INIT INFO
# Provides:          hive-server-nanny
# Required-Start:
# Required-Stop:
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Nanny to restart hive server
# Description:       Nanny to restart hive server
### END INIT INFO

if [ -e /etc/init.d/functions ]; then
. /etc/init.d/functions
fi

function start {
  killall aws-datapipeline-taskrunner-v2.sh
  if [ -x /mnt/taskRunner/aws-datapipeline-taskrunner-v2.sh ] ; then
    echo "Starting Data Pipeline task runner as a daemon...."
    su - $EC2_USER bash -c "cd /mnt/taskRunner/;/mnt/taskRunner/aws-datapipeline-taskrunner-v2.sh --workerGroup="$WORKER_GROUP" --endpoint="$ENDPOINT" --region="$REGION" --logUri="$LOG_URI" --taskRunnerId="$TASKRUNNER_ID" --proxyHost="$PROXY_HOST" --proxyPort="$PROXY_PORT" --username="$USERNAME" --password="$PASSWORD" --windowsDomain="$WINDOWS_DOMAIN" --windowsWorkgroup="$WINDOWS_WORKGROUP" >> /mnt/taskRunner/run.out 2>&1" > /dev/null 2>&1 &
    disown %
  fi
}

function stop {
    killall aws-datapipeline-taskrunner-v2.sh
}

function reload {
  echo "Nothing to reload"
}

case \$1 in
    'start' )
        start
        ;;
    'stop' )
        stop
        ;;
    'restart' )
        stop
        start
        ;;
    'force-reload' )
        stop
        start
        ;;
    'status' )
        ;;
    *)
        echo "usage: `basename \$0` {start|stop|status}"
esac

exit 0
EOF
mv /tmp/datapipeline-taskrunnner-service /etc/init.d/
chmod 500 /etc/init.d/datapipeline-taskrunnner-service

if [ -e /usr/sbin/update-rc.d ]; then
  /usr/sbin/update-rc.d -f datapipeline-taskrunnner-service remove
  /usr/sbin/update-rc.d datapipeline-taskrunnner-service defaults 40 60
elif [ -e /sbin/chkconfig ]; then
  /sbin/chkconfig --del datapipeline-taskrunnner-service
  /sbin/chkconfig --add datapipeline-taskrunnner-service
else
  echo "Unable to register taskrunner service OS. TaskRunner will NOT
  automatically come up if a reboot happens"
fi
fi

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#!/bin/bash

## Task Runner installation for a datapipeline managed Ec2 resource

## This is run as cloudinit. See the logs in /var/log/cloud-init-log

set -x -e

for key in "$@"

case $key in

--workerGroup=*)

WORKER_GROUP="${key#*=}"

echo "WORKER_GROUP = $WORKER_GROUP"

shift

;;

--endpoint=*)

ENDPOINT="${key#*=}"

echo "ENDPOINT = $ENDPOINT"

shift

;;

--region=*)

REGION="${key#*=}"

echo "REGION = $REGION"

shift

;;

--logUri=*)

LOG_URI="${key#*=}"

echo "LOG_URI = $LOG_URI"

shift

;;

--taskRunnerId=*)

TASKRUNNER_ID="${key#*=}"

echo "TASKRUNNER_ID = $TASKRUNNER_ID"

shift

;;

--zipFile=*)

ZIP_FILE="${key#*=}"

echo "ZIP_FILE = $ZIP_FILE"

shift

;;

--mysqlFile=*)

MYSQL_FILE="${key#*=}"

echo "MYSQL_FILE = $MYSQL_FILE"

shift

;;

--ec2User=*)

EC2_USER="${key#*=}"

echo "EC2_USER = $EC2_USER"

shift

;;

--proxyHost=*)

PROXY_HOST="${key#*=}"

echo "PROXY_HOST = $PROXY_HOST"

shift

;;

--proxyPort=*)

PROXY_PORT="${key#*=}"

echo "PROXY_PORT = $PROXY_PORT"

shift

;;

--username=*)

USERNAME="${key#*=}"

echo "USERNAME = $USERNAME"

shift

;;

--password=*)

PASSWORD="${key#*=}"

echo "PASSWORD = $PASSWORD"

shift

;;

--windowsDomain=*)

WINDOWS_DOMAIN="${key#*=}"

echo "WINDOWS_DOMAIN = $WINDOWS_DOMAIN"

shift

;;

--windowsWorkgroup=*)

WINDOWS_WORKGROUP="${key#*=}"

echo "WINDOWS_WORKGROUP = $WINDOWS_WORKGROUP"

shift

;;

echo "Unlnown option : $key"

;;

esac

done

# prepare installation directory in /mnt/taskRunner

# using /media/ephemeral0

if [ -d /media/ephemeral0 ] && ! [ -d /mnt/taskRunner ] ; then

mkdir -p /media/ephemeral0/mnt/taskRunner

mkdir -p /mnt

chown -R $EC2_USER /media/ephemeral0/mnt/taskRunner

ln -s /media/ephemeral0/mnt/taskRunner /mnt/taskRunner

mkdir -p /mnt/taskRunner

chown -R $EC2_USER /mnt/taskRunner

# allow sudo to run for ec2 user without a tty

sudofile=task-runner-ec2-user

cat > /tmp/$sudofile <<EOF

Defaults:ec2-user !requiretty

EOF

chmod 600 /tmp/$sudofile

mv /tmp/$sudofile /etc/sudoers.d/$sudofile

## Install jdk 1.7 when version is less on amazon linux

KERNEL=`uname -r`

VERSION=`java -version 2>&1 | awk -F '"' '/version/ {print $2}'`

if [[ ($KERNEL =~ "amzn") && ( $VERSION < "1.7" ) ]]; then

echo "Found : KERNEL : $KERNEL JAVA VERSION : $VERSION"

echo "Upgrading to java 1.7"

yum install java-1.7.0-openjdk -y

su - $EC2_USER <<EOF

cd /mnt/taskRunner

wget -O taskRunner.zip $ZIP_FILE

wget -O $(basename $MYSQL_FILE) $MYSQL_FILE

unzip taskRunner.zip

chmod 500 aws-datapipeline-taskrunner-v2.sh

./aws-datapipeline-taskrunner-v2.sh --workerGroup="$WORKER_GROUP" --endpoint="$ENDPOINT" --region="$REGION" --logUri="$LOG_URI" --taskRunnerId="$TASKRUNNER_ID" --proxyHost="$PROXY_HOST" --proxyPort="$PROXY_PORT" --username="$USERNAME" --password="$PASSWORD" --windowsDomain="$WINDOWS_DOMAIN" --windowsWorkgroup="$WINDOWS_WORKGROUP" >> run.out 2>&1 < /dev/null &

disown %

EOF

if [ -d /etc/init.d ] ; then

cat > /tmp/datapipeline-taskrunnner-service << EOF

#!/bin/bash

### BEGIN INIT INFO

# Provides: hive-server-nanny

# Required-Start:

# Required-Stop:

# Default-Start: 2 3 4 5

# Default-Stop: 0 1 6

# Short-Description: Nanny to restart hive server

# Description: Nanny to restart hive server

### END INIT INFO

if [ -e /etc/init.d/functions ]; then

. /etc/init.d/functions

function start {

killall aws-datapipeline-taskrunner-v2.sh

if [ -x /mnt/taskRunner/aws-datapipeline-taskrunner-v2.sh ] ; then

echo "Starting Data Pipeline task runner as a daemon...."

su - $EC2_USER bash -c "cd /mnt/taskRunner/;/mnt/taskRunner/aws-datapipeline-taskrunner-v2.sh --workerGroup="$WORKER_GROUP" --endpoint="$ENDPOINT" --region="$REGION" --logUri="$LOG_URI" --taskRunnerId="$TASKRUNNER_ID" --proxyHost="$PROXY_HOST" --proxyPort="$PROXY_PORT" --username="$USERNAME" --password="$PASSWORD" --windowsDomain="$WINDOWS_DOMAIN" --windowsWorkgroup="$WINDOWS_WORKGROUP" >> /mnt/taskRunner/run.out 2>&1" > /dev/null 2>&1 &

disown %

}

function stop {

killall aws-datapipeline-taskrunner-v2.sh

}

function reload {

echo "Nothing to reload"

}

case \$1 in

'start' )

start

;;

'stop' )

stop

;;

'restart' )

stop

start

;;

'force-reload' )

stop

start

;;

'status' )

;;

echo "usage: `basename \$0` {start|stop|status}"

esac

exit 0

EOF

mv /tmp/datapipeline-taskrunnner-service /etc/init.d/

chmod 500 /etc/init.d/datapipeline-taskrunnner-service

if [ -e /usr/sbin/update-rc.d ]; then

/usr/sbin/update-rc.d -f datapipeline-taskrunnner-service remove

/usr/sbin/update-rc.d datapipeline-taskrunnner-service defaults 40 60

elif [ -e /sbin/chkconfig ]; then

/sbin/chkconfig --del datapipeline-taskrunnner-service

/sbin/chkconfig --add datapipeline-taskrunnner-service

else

echo "Unable to register taskrunner service OS. TaskRunner will NOT

automatically come up if a reboot happens"

Now, this script in-turn runs and passes all arguments to aws-datapipeline-taskrunner-v2.sh. aws-datapipeline-taskrunner-v2.sh script is responsible for running the task runner by invoking the actual TaskRunner jar.

#!/bin/bash

##  This script starts the task runner by invoking the TaskRunner jar

set -x

for key in "$@"
do
case $key in
    --workerGroup=*)
    WORKER_GROUP="${key#*=}"
    echo "WORKER_GROUP = $WORKER_GROUP"
    shift
    ;;

    --endpoint=*)
    ENDPOINT="${key#*=}"
    echo "ENDPOINT = $ENDPOINT"
    shift
    ;;

    --region=*)
    REGION="${key#*=}"
    echo "REGION = $REGION"
    shift
    ;;

    --logUri=*)
    LOG_URI="${key#*=}"
    echo "LOG_URI = $LOG_URI"
    shift
    ;;

    --taskRunnerId=*)
    TASKRUNNER_ID="${key#*=}"
    echo "TASKRUNNER_ID = $TASKRUNNER_ID"
    shift
    ;;

    --proxyHost=*)
    PROXY_HOST="${key#*=}"
    echo "PROXY_HOST = $PROXY_HOST"
    shift
    ;;

    --proxyPort=*)
    PROXY_PORT="${key#*=}"
    echo "PROXY_PORT = $PROXY_PORT"
    shift
    ;;

    --username=*)
    USERNAME="${key#*=}"
    echo "USERNAME = $USERNAME"
    shift
    ;;

    --password=*)
    PASSWORD="${key#*=}"
    echo "PASSWORD = $PASSWORD"
    shift
    ;;

    --windowsDomain=*)
    WINDOWS_DOMAIN="${key#*=}"
    echo "WINDOWS_DOMAIN = $WINDOWS_DOMAIN"
    shift
    ;;

    --windowsWorkgroup=*)
    WINDOWS_WORKGROUP="${key#*=}"
    echo "WINDOWS_WORKGROUP = $WINDOWS_WORKGROUP"
    shift
    ;;

    --releaseLabel=*)
    RELEASELABEL="${key#*=}"
    echo "RELEASELABEL = $RELEASELABEL"
    shift
    ;;

    --s3NoProxy=*)
    S3NOPROXY="${key#*=}"
    echo "S3NOPROXY = $S3NOPROXY"
    shift
    ;;

    *)
    echo "Unknown option : $key"
    ;;

esac
done

HADOOP_CLASSPATH=""
mv staging-hadoop1-lib.jar staging-hadoop-lib.jar
TASKRUNNER_CLASSPATH="/mnt/taskRunner/TaskRunner-1.0.jar:/mnt/taskRunner/common/*:/mnt/taskRunner/staging-hadoop-lib.jar:"
TASKRUNNER_CLASSPATH="$TASKRUNNER_CLASSPATH:/mnt/taskRunner/emr-hadoop-goodies.jar:/mnt/taskRunner/emr-hive-goodies.jar:/mnt/taskRunner/emr-pig-goodies.jar"

#Load jars based on Hadoop version

if hash hadoop 2>/dev/null; then

   TASKRUNNER_CLASSPATH="$TASKRUNNER_CLASSPATH:`hadoop classpath`"

   # Adding hive jars
   if [ -n "$RELEASELABEL" ]; then
      TASKRUNNER_CLASSPATH="$TASKRUNNER_CLASSPATH:/usr/lib/hive/lib/*"
   else
      TASKRUNNER_CLASSPATH="$TASKRUNNER_CLASSPATH:/home/hadoop/hive/lib/*"
   fi

   #determine hadoop version
   VERSION=`hadoop version`
   MAJOR_VERSION=`[[ $VERSION =~ [0-9]+\. ]] && echo $BASH_REMATCH`

   if [ "${MAJOR_VERSION:0:1}" == "1" ]
   then
     mv pipeline-serde-hadoop1.jar pipeline-serde.jar
   else
     mv staging-hadoop2-lib.jar staging-hadoop-lib.jar
     mv pipeline-serde-hadoop2.jar pipeline-serde.jar
   fi

fi

TASKRUNNER_CLASSPATH="$TASKRUNNER_CLASSPATH:/mnt/taskRunner/pig-0.11.1.1-amzn.jar"
COMMAND_LAUNCH_TASKRUNNER="java -cp "$TASKRUNNER_CLASSPATH" amazonaws.datapipeline.taskrunner.Main \
         --workerGroup "$WORKER_GROUP" --endpoint "$ENDPOINT" --region "$REGION" --logUri "$LOG_URI" --taskrunnerId "$TASKRUNNER_ID""

if [ -n "$PROXY_HOST" ]; then
    COMMAND_LAUNCH_TASKRUNNER="$COMMAND_LAUNCH_TASKRUNNER --proxyHost "$PROXY_HOST" --proxyPort "$PROXY_PORT""
fi

if [ -n "$USERNAME" ]; then
    COMMAND_LAUNCH_TASKRUNNER="$COMMAND_LAUNCH_TASKRUNNER --proxyUsername "$USERNAME" --proxyPassword "$PASSWORD""
fi

if [ -n "$WINDOWS_DOMAIN" ]; then
    COMMAND_LAUNCH_TASKRUNNER="$COMMAND_LAUNCH_TASKRUNNER --proxyDomain "$WINDOWS_DOMAIN""
fi

if [ -n "$WINDOWS_WORKGROUP" ]; then
    COMMAND_LAUNCH_TASKRUNNER="$COMMAND_LAUNCH_TASKRUNNER --proxyWorkstation "$WINDOWS_WORKGROUP""
fi

if [ -n "$S3NOPROXY" ]; then
    COMMAND_LAUNCH_TASKRUNNER="$COMMAND_LAUNCH_TASKRUNNER --s3NoProxy "$S3NOPROXY""
fi

while true ; do
    date
    $COMMAND_LAUNCH_TASKRUNNER
    echo "Process exited with status $?"
    sleep 3

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#!/bin/bash

## This script starts the task runner by invoking the TaskRunner jar

set -x

for key in "$@"

case $key in

--workerGroup=*)

WORKER_GROUP="${key#*=}"

echo "WORKER_GROUP = $WORKER_GROUP"

shift

;;

--endpoint=*)

ENDPOINT="${key#*=}"

echo "ENDPOINT = $ENDPOINT"

shift

;;

--region=*)

REGION="${key#*=}"

echo "REGION = $REGION"

shift

;;

--logUri=*)

LOG_URI="${key#*=}"

echo "LOG_URI = $LOG_URI"

shift

;;

--taskRunnerId=*)

TASKRUNNER_ID="${key#*=}"

echo "TASKRUNNER_ID = $TASKRUNNER_ID"

shift

;;

--proxyHost=*)

PROXY_HOST="${key#*=}"

echo "PROXY_HOST = $PROXY_HOST"

shift

;;

--proxyPort=*)

PROXY_PORT="${key#*=}"

echo "PROXY_PORT = $PROXY_PORT"

shift

;;

--username=*)

USERNAME="${key#*=}"

echo "USERNAME = $USERNAME"

shift

;;

--password=*)

PASSWORD="${key#*=}"

echo "PASSWORD = $PASSWORD"

shift

;;

--windowsDomain=*)

WINDOWS_DOMAIN="${key#*=}"

echo "WINDOWS_DOMAIN = $WINDOWS_DOMAIN"

shift

;;

--windowsWorkgroup=*)

WINDOWS_WORKGROUP="${key#*=}"

echo "WINDOWS_WORKGROUP = $WINDOWS_WORKGROUP"

shift

;;

--releaseLabel=*)

RELEASELABEL="${key#*=}"

echo "RELEASELABEL = $RELEASELABEL"

shift

;;

--s3NoProxy=*)

S3NOPROXY="${key#*=}"

echo "S3NOPROXY = $S3NOPROXY"

shift

;;

echo "Unknown option : $key"

;;

esac

done

HADOOP_CLASSPATH=""

mv staging-hadoop1-lib.jar staging-hadoop-lib.jar

TASKRUNNER_CLASSPATH="/mnt/taskRunner/TaskRunner-1.0.jar:/mnt/taskRunner/common/*:/mnt/taskRunner/staging-hadoop-lib.jar:"

TASKRUNNER_CLASSPATH="$TASKRUNNER_CLASSPATH:/mnt/taskRunner/emr-hadoop-goodies.jar:/mnt/taskRunner/emr-hive-goodies.jar:/mnt/taskRunner/emr-pig-goodies.jar"

#Load jars based on Hadoop version

if hash hadoop 2>/dev/null; then

TASKRUNNER_CLASSPATH="$TASKRUNNER_CLASSPATH:`hadoop classpath`"

# Adding hive jars

if [ -n "$RELEASELABEL" ]; then

TASKRUNNER_CLASSPATH="$TASKRUNNER_CLASSPATH:/usr/lib/hive/lib/*"

else

TASKRUNNER_CLASSPATH="$TASKRUNNER_CLASSPATH:/home/hadoop/hive/lib/*"

#determine hadoop version

VERSION=`hadoop version`

MAJOR_VERSION=`[[ $VERSION =~ [0-9]+\. ]] && echo $BASH_REMATCH`

if [ "${MAJOR_VERSION:0:1}" == "1" ]

then

mv pipeline-serde-hadoop1.jar pipeline-serde.jar

else

mv staging-hadoop2-lib.jar staging-hadoop-lib.jar

mv pipeline-serde-hadoop2.jar pipeline-serde.jar

TASKRUNNER_CLASSPATH="$TASKRUNNER_CLASSPATH:/mnt/taskRunner/pig-0.11.1.1-amzn.jar"

COMMAND_LAUNCH_TASKRUNNER="java -cp "$TASKRUNNER_CLASSPATH" amazonaws.datapipeline.taskrunner.Main \

--workerGroup "$WORKER_GROUP" --endpoint "$ENDPOINT" --region "$REGION" --logUri "$LOG_URI" --taskrunnerId "$TASKRUNNER_ID""

if [ -n "$PROXY_HOST" ]; then

COMMAND_LAUNCH_TASKRUNNER="$COMMAND_LAUNCH_TASKRUNNER --proxyHost "$PROXY_HOST" --proxyPort "$PROXY_PORT""

if [ -n "$USERNAME" ]; then

COMMAND_LAUNCH_TASKRUNNER="$COMMAND_LAUNCH_TASKRUNNER --proxyUsername "$USERNAME" --proxyPassword "$PASSWORD""

if [ -n "$WINDOWS_DOMAIN" ]; then

COMMAND_LAUNCH_TASKRUNNER="$COMMAND_LAUNCH_TASKRUNNER --proxyDomain "$WINDOWS_DOMAIN""

if [ -n "$WINDOWS_WORKGROUP" ]; then

COMMAND_LAUNCH_TASKRUNNER="$COMMAND_LAUNCH_TASKRUNNER --proxyWorkstation "$WINDOWS_WORKGROUP""

if [ -n "$S3NOPROXY" ]; then

COMMAND_LAUNCH_TASKRUNNER="$COMMAND_LAUNCH_TASKRUNNER --s3NoProxy "$S3NOPROXY""

while true ; do

date

$COMMAND_LAUNCH_TASKRUNNER

echo "Process exited with status $?"

sleep 3

As you can see , Just like installing taskrunner on existing resources[1], Data-Pipelines runs the command java -cp "$TASKRUNNER_CLASSPATH" amazonaws.datapipeline.taskrunner.Main \ --workerGroup "$WORKER_GROUP" --endpoint "$ENDPOINT" --region "$REGION" --logUri "$LOG_URI" --taskrunnerId "$TASKRUNNER_ID" , by passing all required arguments to the taskrunner.

Taskrunner process is responsible for polling AWS Data Pipeline service for tasks and then performs those tasks.

Task Lifecycle

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