e1f5bcf08c
We should define a set of CLUSTER_STATUS in stead of using direct string in code. 1. Add cluster.py in utils/ 2. Add cluster status. 3. move cluster operation related methods from general.py to cluster.py Change-Id: Id95d982a911ab5d0f789265e03bff2256cf75856
111 lines
3.9 KiB
Python
111 lines
3.9 KiB
Python
# Copyright (c) 2013 Mirantis Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import uuid
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import six
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from six.moves.urllib import parse as urlparse
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from sahara import conductor as c
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from sahara import context
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from sahara.plugins import exceptions as ex
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from sahara.plugins import utils as u
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from sahara.utils import cluster as cluster_utils
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conductor = c.API
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HBASE_COMMON_LIB_PATH = "/user/sahara-hbase-lib"
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def create_hbase_common_lib(r):
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r.execute_command(
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'sudo su - -c "hadoop dfs -mkdir -p %s" hdfs' % (
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HBASE_COMMON_LIB_PATH))
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ret_code, stdout = r.execute_command(
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'hbase classpath')
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if ret_code == 0:
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paths = stdout.split(':')
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for p in paths:
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if p.endswith(".jar"):
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r.execute_command('sudo su - -c "hadoop fs -put -p %s %s" hdfs'
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% (p, HBASE_COMMON_LIB_PATH))
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else:
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raise ex.RequiredServiceMissingException('hbase')
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def put_file_to_hdfs(r, file, file_name, path, hdfs_user):
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tmp_file_name = '%s.%s' % (file_name, six.text_type(uuid.uuid4()))
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r.write_file_to('/tmp/%s' % tmp_file_name, file)
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move_from_local(r, '/tmp/%s' % tmp_file_name, path + '/' + file_name,
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hdfs_user)
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def copy_from_local(r, source, target, hdfs_user):
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r.execute_command('sudo su - -c "hadoop dfs -copyFromLocal '
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'%s %s" %s' % (source, target, hdfs_user))
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def move_from_local(r, source, target, hdfs_user):
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# using copyFromLocal followed by rm to address permission issues that
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# arise when image user is not the same as hdfs user (permissions-wise).
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r.execute_command('sudo su - -c "hadoop dfs -copyFromLocal %(source)s '
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'%(target)s" %(user)s && sudo rm -f %(source)s' %
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{"source": source, "target": target, "user": hdfs_user})
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def create_dir_hadoop1(r, dir_name, hdfs_user):
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r.execute_command(
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'sudo su - -c "hadoop dfs -mkdir %s" %s' % (dir_name, hdfs_user))
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def create_dir_hadoop2(r, dir_name, hdfs_user):
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r.execute_command(
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'sudo su - -c "hadoop dfs -mkdir -p %s" %s' % (dir_name, hdfs_user))
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def _get_cluster_hosts_information(host, cluster):
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for clust in conductor.cluster_get_all(context.ctx()):
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if clust.id == cluster.id:
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continue
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for i in u.get_instances(clust):
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if i.instance_name == host:
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return cluster_utils.generate_etc_hosts(clust)
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return None
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def configure_cluster_for_hdfs(cluster, data_source_url):
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host = urlparse.urlparse(data_source_url).hostname
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etc_hosts_information = _get_cluster_hosts_information(host, cluster)
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if etc_hosts_information is None:
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# Ip address hasn't been resolved, the last chance is for VM itself
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return
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etc_hosts_update = '/tmp/etc-hosts-update.%s' % six.text_type(uuid.uuid4())
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tmp_etc_hosts = '/tmp/etc-hosts.%s' % six.text_type(uuid.uuid4())
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update_etc_hosts_cmd = (
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'cat %(etc_hosts_update)s /etc/hosts | '
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'sort | uniq > %(tmp_etc_hosts)s && '
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'cat %(tmp_etc_hosts)s > /etc/hosts && '
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'rm -f %(tmp_etc_hosts)s %(etc_hosts_update)s' %
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{'etc_hosts_update': etc_hosts_update, 'tmp_etc_hosts': tmp_etc_hosts})
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for inst in u.get_instances(cluster):
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with inst.remote() as r:
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r.write_file_to(etc_hosts_update, etc_hosts_information)
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r.execute_command(update_etc_hosts_cmd, run_as_root=True)
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