deb-sahara/sahara/plugins/mapr/services/oozie/oozie.py
Artem Osadchyi ca5294a801 Removed redundant metaclass declarations in MapR plugin
Change-Id: Ifad8f7521be49c5564f43e6df78f2d49fb753ba0
Implements: blueprint mapr-refactor-singleton
2015-09-30 17:33:25 +03:00

129 lines
5.0 KiB
Python

# Copyright (c) 2015, MapR Technologies
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
from oslo_log import log as logging
import sahara.plugins.mapr.domain.configuration_file as bcf
import sahara.plugins.mapr.domain.node_process as np
import sahara.plugins.mapr.domain.service as s
import sahara.plugins.mapr.services.mysql.mysql as mysql
import sahara.plugins.mapr.util.general as g
import sahara.plugins.mapr.util.validation_utils as vu
LOG = logging.getLogger(__name__)
OOZIE = np.NodeProcess(
name='oozie',
ui_name='Oozie',
package='mapr-oozie',
open_ports=[11000]
)
class Oozie(s.Service):
def __init__(self):
super(Oozie, self).__init__()
self._name = 'oozie'
self._ui_name = 'Oozie'
self._node_processes = [OOZIE]
self._cluster_defaults = ['oozie-default.json']
self._validation_rules = [vu.exactly(1, OOZIE)]
self._ui_info = [('Oozie', OOZIE, 'http://%s:11000/oozie')]
def get_config_files(self, cluster_context, configs, instance=None):
oozie_site = bcf.HadoopXML("oozie-site.xml")
oozie_site.remote_path = self.conf_dir(cluster_context)
if instance:
oozie_site.fetch(instance)
oozie_site.load_properties(configs)
oozie_site.add_properties(self._get_oozie_site_props(cluster_context))
return [oozie_site]
def _get_oozie_site_props(self, context):
oozie_specs = mysql.MySQL.OOZIE_SPECS
return {
'oozie.db.schema.name': oozie_specs.db_name,
'oozie.service.JPAService.create.db.schema': True,
'oozie.service.JPAService.jdbc.driver': mysql.MySQL.DRIVER_CLASS,
'oozie.service.JPAService.jdbc.url': self._get_jdbc_uri(context),
'oozie.service.JPAService.jdbc.username': oozie_specs.user,
'oozie.service.JPAService.jdbc.password': oozie_specs.password,
'oozie.service.HadoopAccessorService.hadoop.configurations':
'*=%s' % context.hadoop_conf
}
def _get_jdbc_uri(self, context):
jdbc_uri = ('jdbc:mysql://%(db_host)s:%(db_port)s/%(db_name)s?'
'createDatabaseIfNotExist=true')
jdbc_args = {
'db_host': mysql.MySQL.get_db_instance(context).internal_ip,
'db_port': mysql.MySQL.MYSQL_SERVER_PORT,
'db_name': mysql.MySQL.OOZIE_SPECS.db_name,
}
return jdbc_uri % jdbc_args
def post_install(self, cluster_context, instances):
oozie_inst = cluster_context.get_instance(OOZIE)
oozie_service = cluster_context.get_service(OOZIE)
if oozie_service:
oozie_version = oozie_service.version
symlink_cmd = ('cp /usr/share/java/mysql-connector-java.jar '
'/opt/mapr/oozie/oozie-%s'
'/oozie-server/lib/') % oozie_version
with oozie_inst.remote() as r:
LOG.debug('Installing MySQL connector for Oozie')
r.execute_command(symlink_cmd, run_as_root=True,
raise_when_error=False)
def post_start(self, cluster_context, instances):
instances = cluster_context.filter_instances(instances, OOZIE)
self._install_ui(cluster_context, instances)
@g.remote_command(1)
def _rebuild_oozie_war(self, remote, cluster_context):
extjs_url = 'http://dev.sencha.com/deploy/ext-2.2.zip'
extjs_file = '/tmp/extjs.zip'
g.download(remote, extjs_url, extjs_file)
cmd = '%(home)s/bin/oozie-setup.sh prepare-war -extjs %(ext)s'
args = {'home': self.home_dir(cluster_context), 'ext': extjs_file}
remote.execute_command(cmd % args, run_as_root=True)
def update(self, cluster_context, instances=None):
instances = instances or cluster_context.get_instances()
instances = cluster_context.filter_instances(instances, OOZIE)
self._install_ui(cluster_context, instances)
def _install_ui(self, cluster_context, instances):
OOZIE.stop(filter(OOZIE.is_started, instances))
g.execute_on_instances(
instances, self._rebuild_oozie_war, cluster_context)
OOZIE.start(instances)
class OozieV401(Oozie):
def __init__(self):
super(OozieV401, self).__init__()
self._version = '4.0.1'
self._dependencies = [('mapr-oozie-internal', self.version)]
class OozieV410(Oozie):
def __init__(self):
super(OozieV410, self).__init__()
self._version = '4.1.0'
self._dependencies = [('mapr-oozie-internal', self.version)]