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# File 'manifests/common/hdfs/config.pp', line 3
class hadoop::common::hdfs::config {
include ::hadoop::common::install
include ::hadoop::common::slaves
if $hadoop::datanode_hostnames {
$file_slaves = 'slaves-hdfs'
file { "${hadoop::confdir}/slaves-hdfs":
owner => 'root',
group => 'root',
mode => '0644',
alias => 'slaves-hdfs',
content => template('hadoop/hadoop/slaves-hdfs.erb'),
}
} else {
$file_slaves = 'slaves'
file { "${hadoop::confdir}/slaves-hdfs":
ensure => absent,
}
}
file { "${hadoop::confdir}/hdfs-site.xml":
owner => 'root',
group => 'root',
mode => '0644',
alias => 'hdfs-site.xml',
content => template('hadoop/hadoop/hdfs-site.xml.erb'),
require => [ Exec['touch-excludes'], File[$file_slaves] ],
}
if $hadoop::ha_credentials {
file { "${hadoop::confdir}/zk-auth.txt":
owner => 'hdfs',
group => 'hdfs',
mode => '0600',
alias => 'zk-auth.txt',
content => template('hadoop/hadoop/zk-auth.txt.erb'),
}
} else {
file { "${hadoop::confdir}/zk-auth.txt":
ensure => absent,
}
}
if $hadoop::ha_digest {
file { "${hadoop::confdir}/zk-acl.txt":
owner => 'hdfs',
group => 'hdfs',
mode => '0600',
alias => 'zk-acl.txt',
content => template('hadoop/hadoop/zk-acl.txt.erb'),
}
} else {
file { "${hadoop::confdir}/zk-acl.txt":
ensure => absent,
}
}
# mapred user is required on name node,
# it is created by hadoop-yarn package too, but we don't need yarn package with
# all dependencies just for creating this user
group { 'mapred':
ensure => present,
system => true,
}
case "${::osfamily}-${::operatingsystem}" {
/RedHat-Fedora/: {
user { 'mapred':
ensure => present,
comment => 'Apache Hadoop MapReduce',
password => '!!',
shell => '/sbin/nologin',
home => '/var/cache/hadoop-mapreduce',
managehome => true,
system => true,
gid => 'mapred',
groups => [ 'hadoop' ],
require => [Group['mapred']],
}
}
/Debian|RedHat/: {
user { 'mapred':
ensure => present,
comment => 'Hadoop MapReduce',
password => '!!',
shell => '/bin/bash',
home => '/var/lib/hadoop-mapreduce',
managehome => true,
system => true,
gid => 'mapred',
groups => [ 'hadoop' ],
require => [Group['mapred']],
}
}
default: {
fail("${::osfamily} (${::operatingsystem}) not supported")
}
}
#
# rm user (from principle) is required for ResourceManager state-store
# working with Kerberos
#
# org.apache.hadoop.yarn.server.resourcemanager.recovery.FileSystemRMStateStore
# ignores hadoop.security.auth_to_local
#
$rm_shell = "${::osfamily}-${::operatingsystem}" ? {
/RedHat-Fedora/ => '/sbin/nologin',
/Debian|RedHat/ => '/bin/false',
}
if $hadoop::realm and $hadoop::realm != '' {
user { 'rm':
ensure => present,
comment => 'Apache Hadoop Yarn',
password => '!!',
shell => $rm_shell,
home => '/var/cache/hadoop-yarn',
managehome => false,
system => true,
gid => 'mapred',
groups => [ 'hadoop' ],
require => [Group['mapred']],
}
}
# slaves needs Hadoop configuration directory
Class['hadoop::common::install'] -> Class['hadoop::common::slaves']
#
# Nfs proxy user is required on name node.
#
# It is created by hadoop::nfs class, but NFS Gateway may not be installed
# at the name node.
#
if $hadoop::nfs_properties {
contain hadoop::nfs::user
}
}
|