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hadoop-and-desktop-ec2-init-remote-0.3.0.sh
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hadoop-and-desktop-ec2-init-remote-0.3.0.sh
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#!/bin/bash -x
export %ENV%
REPO="cdh2"
HADOOP="hadoop-0.20"
SELF_HOST=`wget -q -O - http://169.254.169.254/latest/meta-data/public-hostname`
for role in $(echo "$ROLES" | tr "," "\n"); do
case $role in
nn)
NN_HOST=$SELF_HOST
;;
jt)
JT_HOST=$SELF_HOST
;;
esac
done
function update_repo() {
cat > /etc/apt/sources.list.d/cloudera.list <<EOF
deb http://archive.cloudera.com/debian intrepid-$REPO contrib
deb-src http://archive.cloudera.com/debian intrepid-$REPO contrib
EOF
}
function install_packages() {
apt-get update
apt-get -y install $@
}
function install_user_packages() {
if [ ! -z "$USER_PACKAGES" ]; then
install_packages $USER_PACKAGES
fi
}
function install_hadoop() {
apt-get update
apt-get -y install $HADOOP
cp -r /etc/$HADOOP/conf.empty /etc/$HADOOP/conf.dist
update-alternatives --install /etc/$HADOOP/conf $HADOOP-conf /etc/$HADOOP/conf.dist 90
apt-get -y install pig${PIG_VERSION:+-${PIG_VERSION}}
apt-get -y install hive${HIVE_VERSION:+-${HIVE_VERSION}}
apt-get -y install policykit # http://www.bergek.com/2008/11/24/ubuntu-810-libpolkit-error/
}
function prep_disk() {
mount=$1
device=$2
automount=${3:-false}
echo "warning: ERASING CONTENTS OF $device"
mkfs.xfs -f $device
if [ ! -e $mount ]; then
mkdir $mount
fi
mount -o defaults,noatime $device $mount
if $automount ; then
echo "$device $mount xfs defaults,noatime 0 0" >> /etc/fstab
fi
}
function wait_for_mount {
mount=$1
device=$2
mkdir $mount
i=1
echo "Attempting to mount $device"
while true ; do
sleep 10
echo -n "$i "
i=$[$i+1]
mount -o defaults,noatime $device $mount || continue
echo " Mounted."
break;
done
}
function make_hadoop_hdfs_dirs {
AS_HADOOP="su -s /bin/bash - hadoop -c"
hdfs_dirs=$(echo $@| tr "," "\n")
for dir in $hdfs_dirs
do
echo "$AS_HADOOP mkdir -p $dir"
$AS_HADOOP "mkdir -p $dir"
#chown hadoop:hadoop $dir
done
}
function make_hadoop_dirs {
for mount in "$@"; do
if [ ! -e $mount/hadoop ]; then
mkdir -p $mount/hadoop
chown hadoop:hadoop $mount/hadoop
fi
done
}
function configure_hadoop() {
install_packages xfsprogs # needed for XFS
INSTANCE_TYPE=`wget -q -O - http://169.254.169.254/latest/meta-data/instance-type`
if [ -n "$EBS_MAPPINGS" ]; then
# EBS_MAPPINGS is like "/ebs1,/dev/sdj;/ebs2,/dev/sdk"
DFS_NAME_DIR=''
FS_CHECKPOINT_DIR=''
DFS_DATA_DIR=''
for mapping in $(echo "$EBS_MAPPINGS" | tr ";" "\n"); do
# Split on the comma (see "Parameter Expansion" in the bash man page)
mount=${mapping%,*}
device=${mapping#*,}
wait_for_mount $mount $device
DFS_NAME_DIR=${DFS_NAME_DIR},"$mount/hadoop/hdfs/name"
FS_CHECKPOINT_DIR=${FS_CHECKPOINT_DIR},"$mount/hadoop/hdfs/secondary"
DFS_DATA_DIR=${DFS_DATA_DIR},"$mount/hadoop/hdfs/data"
FIRST_MOUNT=${FIRST_MOUNT-$mount}
make_hadoop_dirs $mount
done
# Remove leading commas
DFS_NAME_DIR=${DFS_NAME_DIR#?}
FS_CHECKPOINT_DIR=${FS_CHECKPOINT_DIR#?}
DFS_DATA_DIR=${DFS_DATA_DIR#?}
DFS_REPLICATION=3 # EBS is internally replicated, but we also use HDFS replication for safety
else
case $INSTANCE_TYPE in
m1.xlarge|c1.xlarge)
DFS_NAME_DIR=/mnt/hadoop/hdfs/name,/mnt2/hadoop/hdfs/name
FS_CHECKPOINT_DIR=/mnt/hadoop/hdfs/secondary,/mnt2/hadoop/hdfs/secondary
DFS_DATA_DIR=/mnt/hadoop/hdfs/data,/mnt2/hadoop/hdfs/data,/mnt3/hadoop/hdfs/data,/mnt4/hadoop/hdfs/data
;;
m1.large)
DFS_NAME_DIR=/mnt/hadoop/hdfs/name,/mnt2/hadoop/hdfs/name
FS_CHECKPOINT_DIR=/mnt/hadoop/hdfs/secondary,/mnt2/hadoop/hdfs/secondary
DFS_DATA_DIR=/mnt/hadoop/hdfs/data,/mnt2/hadoop/hdfs/data
;;
*)
# "m1.small" or "c1.medium"
DFS_NAME_DIR=/mnt/hadoop/hdfs/name
FS_CHECKPOINT_DIR=/mnt/hadoop/hdfs/secondary
DFS_DATA_DIR=/mnt/hadoop/hdfs/data
;;
esac
FIRST_MOUNT=/mnt
DFS_REPLICATION=3
fi
case $INSTANCE_TYPE in
m1.xlarge|c1.xlarge)
prep_disk /mnt2 /dev/sdc true &
disk2_pid=$!
prep_disk /mnt3 /dev/sdd true &
disk3_pid=$!
prep_disk /mnt4 /dev/sde true &
disk4_pid=$!
wait $disk2_pid $disk3_pid $disk4_pid
MAPRED_LOCAL_DIR=/mnt/hadoop/mapred/local,/mnt2/hadoop/mapred/local,/mnt3/hadoop/mapred/local,/mnt4/hadoop/mapred/local
MAX_MAP_TASKS=5
MAX_REDUCE_TASKS=5
CHILD_OPTS=-Xmx512m
CHILD_ULIMIT=1048576
;;
m1.large)
prep_disk /mnt2 /dev/sdc true
MAPRED_LOCAL_DIR=/mnt/hadoop/mapred/local,/mnt2/hadoop/mapred/local
MAX_MAP_TASKS=4
MAX_REDUCE_TASKS=2
CHILD_OPTS=-Xmx1024m
CHILD_ULIMIT=2097152
;;
c1.medium)
MAPRED_LOCAL_DIR=/mnt/hadoop/mapred/local
MAX_MAP_TASKS=4
MAX_REDUCE_TASKS=2
CHILD_OPTS=-Xmx550m
CHILD_ULIMIT=1126400
;;
*)
# "m1.small"
MAPRED_LOCAL_DIR=/mnt/hadoop/mapred/local
MAX_MAP_TASKS=2
MAX_REDUCE_TASKS=1
CHILD_OPTS=-Xmx550m
CHILD_ULIMIT=1126400
;;
esac
make_hadoop_dirs `ls -d /mnt*`
#make_hadoop_hdfs_dirs $DFS_NAME_DIR
#make_hadoop_hdfs_dirs $FS_CHECKPOINT_DIR
#make_hadoop_hdfs_dirs $DFS_DATA_DIR
#make_hadoop_hdfs_dirs $MAPRED_LOCAL_DIR
# Create tmp directory
mkdir /mnt/tmp
chmod a+rwxt /mnt/tmp
cat > /etc/$HADOOP/conf.dist/hadoop-site.xml <<EOF
<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
<configuration>
<property>
<name>dfs.block.size</name>
<value>134217728</value>
<final>true</final>
</property>
<property>
<name>dfs.data.dir</name>
<value>$DFS_DATA_DIR</value>
<final>true</final>
</property>
<property>
<name>dfs.datanode.du.reserved</name>
<value>1073741824</value>
<final>true</final>
</property>
<property>
<name>dfs.datanode.handler.count</name>
<value>3</value>
<final>true</final>
</property>
<!--property>
<name>dfs.hosts</name>
<value>/etc/$HADOOP/conf.dist/dfs.hosts</value>
<final>true</final>
</property-->
<!--property>
<name>dfs.hosts.exclude</name>
<value>/etc/$HADOOP/conf.dist/dfs.hosts.exclude</value>
<final>true</final>
</property-->
<property>
<name>dfs.name.dir</name>
<value>$DFS_NAME_DIR</value>
<final>true</final>
</property>
<property>
<name>dfs.namenode.handler.count</name>
<value>5</value>
<final>true</final>
</property>
<property>
<name>dfs.permissions</name>
<value>true</value>
<final>true</final>
</property>
<property>
<name>dfs.replication</name>
<value>$DFS_REPLICATION</value>
</property>
<property>
<name>fs.checkpoint.dir</name>
<value>$FS_CHECKPOINT_DIR</value>
<final>true</final>
</property>
<property>
<name>fs.default.name</name>
<value>hdfs://$NN_HOST:8020/</value>
</property>
<property>
<name>fs.trash.interval</name>
<value>1440</value>
<final>true</final>
</property>
<property>
<name>hadoop.tmp.dir</name>
<value>/mnt/tmp/hadoop-\${user.name}</value>
<final>true</final>
</property>
<property>
<name>io.file.buffer.size</name>
<value>65536</value>
</property>
<property>
<name>mapred.child.java.opts</name>
<value>$CHILD_OPTS</value>
</property>
<property>
<name>mapred.child.ulimit</name>
<value>$CHILD_ULIMIT</value>
<final>true</final>
</property>
<property>
<name>mapred.job.tracker</name>
<value>$JT_HOST:8021</value>
</property>
<property>
<name>mapred.job.tracker.handler.count</name>
<value>5</value>
<final>true</final>
</property>
<property>
<name>mapred.local.dir</name>
<value>$MAPRED_LOCAL_DIR</value>
<final>true</final>
</property>
<property>
<name>mapred.map.tasks.speculative.execution</name>
<value>true</value>
</property>
<property>
<name>mapred.reduce.parallel.copies</name>
<value>10</value>
</property>
<property>
<name>mapred.reduce.tasks</name>
<value>10</value>
</property>
<property>
<name>mapred.reduce.tasks.speculative.execution</name>
<value>false</value>
</property>
<property>
<name>mapred.submit.replication</name>
<value>10</value>
</property>
<property>
<name>mapred.system.dir</name>
<value>/hadoop/system/mapred</value>
</property>
<property>
<name>mapred.tasktracker.map.tasks.maximum</name>
<value>$MAX_MAP_TASKS</value>
<final>true</final>
</property>
<property>
<name>mapred.tasktracker.reduce.tasks.maximum</name>
<value>$MAX_REDUCE_TASKS</value>
<final>true</final>
</property>
<property>
<name>tasktracker.http.threads</name>
<value>46</value>
<final>true</final>
</property>
<property>
<name>mapred.jobtracker.taskScheduler</name>
<value>org.apache.hadoop.mapred.FairScheduler</value>
</property>
<property>
<name>mapred.fairscheduler.allocation.file</name>
<value>/etc/$HADOOP/conf.dist/fairscheduler.xml</value>
</property>
<property>
<name>mapred.compress.map.output</name>
<value>true</value>
</property>
<property>
<name>mapred.output.compression.type</name>
<value>BLOCK</value>
</property>
<property>
<name>hadoop.rpc.socket.factory.class.default</name>
<value>org.apache.hadoop.net.StandardSocketFactory</value>
<final>true</final>
</property>
<property>
<name>hadoop.rpc.socket.factory.class.ClientProtocol</name>
<value></value>
<final>true</final>
</property>
<property>
<name>hadoop.rpc.socket.factory.class.JobSubmissionProtocol</name>
<value></value>
<final>true</final>
</property>
<property>
<name>io.compression.codecs</name>
<value>org.apache.hadoop.io.compress.DefaultCodec,org.apache.hadoop.io.compress.GzipCodec</value>
</property>
<property>
<name>fs.s3.awsAccessKeyId</name>
<value>$AWS_ACCESS_KEY_ID</value>
</property>
<property>
<name>fs.s3.awsSecretAccessKey</name>
<value>$AWS_SECRET_ACCESS_KEY</value>
</property>
<property>
<name>fs.s3n.awsAccessKeyId</name>
<value>$AWS_ACCESS_KEY_ID</value>
</property>
<property>
<name>fs.s3n.awsSecretAccessKey</name>
<value>$AWS_SECRET_ACCESS_KEY</value>
</property>
</configuration>
EOF
cat > /etc/$HADOOP/conf.dist/fairscheduler.xml <<EOF
<?xml version="1.0"?>
<allocations>
</allocations>
EOF
cat > /etc/$HADOOP/conf.dist/hadoop-metrics.properties <<EOF
# Exposes /metrics URL endpoint for metrics information.
dfs.class=org.apache.hadoop.metrics.spi.NoEmitMetricsContext
mapred.class=org.apache.hadoop.metrics.spi.NoEmitMetricsContext
jvm.class=org.apache.hadoop.metrics.spi.NoEmitMetricsContext
rpc.class=org.apache.hadoop.metrics.spi.NoEmitMetricsContext
EOF
# Keep PID files in a non-temporary directory
sed -i -e "s|# export HADOOP_PID_DIR=.*|export HADOOP_PID_DIR=/var/run/hadoop|" \
/etc/$HADOOP/conf.dist/hadoop-env.sh
mkdir -p /var/run/hadoop
chown -R hadoop:hadoop /var/run/hadoop
# Set SSH options within the cluster
sed -i -e 's|# export HADOOP_SSH_OPTS=.*|export HADOOP_SSH_OPTS="-o StrictHostKeyChecking=no"|' \
/etc/$HADOOP/conf.dist/hadoop-env.sh
# Hadoop logs should be on the /mnt partition
rm -rf /var/log/hadoop
mkdir /mnt/hadoop/logs
chown hadoop:hadoop /mnt/hadoop/logs
ln -s /mnt/hadoop/logs /var/log/hadoop
chown -R hadoop:hadoop /var/log/hadoop
# Hadoop logs should be on the /mnt partition
rm -rf /var/log/hadoop-0.20
mkdir -p /mnt/hadoop-0.20/logs
chown hadoop:hadoop /mnt/hadoop-0.20/logs
ln -s /mnt/hadoop-0.20/logs /var/log/hadoop-0.20
chown -R hadoop:hadoop /var/log/hadoop-0.20
}
function setup_web() {
apt-get -y install thttpd
WWW_BASE=/var/www
cat > $WWW_BASE/index.html << END
<html>
<head>
<title>Hadoop EC2 Cluster</title>
</head>
<body>
<h1>Hadoop EC2 Cluster</h1>
To browse the cluster you need to have a proxy configured.
<ul>
<li><a href="http://$NN_HOST:50070/">NameNode</a>
<li><a href="http://$JT_HOST:50030/">JobTracker</a>
</ul>
</body>
</html>
END
service thttpd start
}
function start_daemon() {
apt-get -y install $HADOOP-$1
service $HADOOP-$1 start
}
function start_namenode() {
AS_HADOOP="su -s /bin/bash - hadoop -c"
[ ! -e $FIRST_MOUNT/hadoop/hdfs ] && $AS_HADOOP "/usr/bin/$HADOOP namenode -format"
start_daemon namenode
$AS_HADOOP "$HADOOP dfsadmin -safemode wait"
$AS_HADOOP "/usr/bin/$HADOOP fs -mkdir /user"
$AS_HADOOP "/usr/bin/$HADOOP fs -chmod +w /user"
$AS_HADOOP "/usr/bin/$HADOOP fs -mkdir /tmp"
$AS_HADOOP "/usr/bin/$HADOOP fs -chmod +w /tmp"
$AS_HADOOP "/usr/bin/$HADOOP fs -mkdir /user/hive/warehouse"
$AS_HADOOP "/usr/bin/$HADOOP fs -chmod +w /user/hive/warehouse"
}
update_repo
install_user_packages
install_hadoop
configure_hadoop
for role in $(echo "$ROLES" | tr "," "\n"); do
case $role in
nn)
setup_web
start_namenode
;;
snn)
start_daemon secondarynamenode
;;
jt)
start_daemon jobtracker
;;
dn)
start_daemon datanode
;;
tt)
start_daemon tasktracker
;;
esac
done