| #!/usr/bin/env python |
| """ |
| Licensed to the Apache Software Foundation (ASF) under one |
| or more contributor license agreements. See the NOTICE file |
| distributed with this work for additional information |
| regarding copyright ownership. The ASF licenses this file |
| to you 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. |
| """ |
| |
| import os |
| import time |
| |
| from resource_management.core.logger import Logger |
| from resource_management.core.resources.system import Execute, File |
| |
| import metron_service |
| import metron_security |
| |
| |
| # Wrap major operations and functionality in this class |
| class IndexingCommands: |
| __params = None |
| __indexing_topic = None |
| __indexing_topology = None |
| __configured = False |
| __acl_configured = False |
| __hdfs_perm_configured = False |
| __hbase_configured = False |
| __hbase_acl_configured = False |
| |
| def __init__(self, params): |
| if params is None: |
| raise ValueError("params argument is required for initialization") |
| self.__params = params |
| self.__indexing_topology = params.metron_indexing_topology |
| self.__indexing_topic = params.indexing_input_topic |
| self.__configured = os.path.isfile(self.__params.indexing_configured_flag_file) |
| self.__acl_configured = os.path.isfile(self.__params.indexing_acl_configured_flag_file) |
| self.__hbase_configured = os.path.isfile(self.__params.indexing_hbase_configured_flag_file) |
| self.__hbase_acl_configured = os.path.isfile(self.__params.indexing_hbase_acl_configured_flag_file) |
| self.__hdfs_perm_configured = os.path.isfile(self.__params.indexing_hdfs_perm_configured_flag_file) |
| |
| def is_configured(self): |
| return self.__configured |
| |
| def is_acl_configured(self): |
| return self.__acl_configured |
| |
| def is_hdfs_perm_configured(self): |
| return self.__hdfs_perm_configured |
| |
| def set_configured(self): |
| File(self.__params.indexing_configured_flag_file, |
| content="", |
| owner=self.__params.metron_user, |
| mode=0755) |
| |
| def is_hbase_configured(self): |
| return self.__hbase_configured |
| |
| def is_hbase_acl_configured(self): |
| return self.__hbase_acl_configured |
| |
| def set_hbase_configured(self): |
| Logger.info("Setting HBase Configured to True for indexing") |
| File(self.__params.indexing_hbase_configured_flag_file, |
| content="", |
| owner=self.__params.metron_user, |
| mode=0755) |
| |
| def set_hbase_acl_configured(self): |
| Logger.info("Setting HBase ACL Configured to True for indexing") |
| File(self.__params.indexing_hbase_acl_configured_flag_file, |
| content="", |
| owner=self.__params.metron_user, |
| mode=0755) |
| |
| def create_hbase_tables(self): |
| Logger.info("Creating HBase Tables for indexing") |
| if self.__params.security_enabled: |
| metron_security.kinit(self.__params.kinit_path_local, |
| self.__params.hbase_keytab_path, |
| self.__params.hbase_principal_name, |
| execute_user=self.__params.hbase_user) |
| cmd = "echo \"create '{0}','{1}'\" | hbase shell -n" |
| add_update_cmd = cmd.format(self.__params.update_table, self.__params.update_cf) |
| Execute(add_update_cmd, |
| tries=3, |
| try_sleep=5, |
| logoutput=False, |
| path='/usr/sbin:/sbin:/usr/local/bin:/bin:/usr/bin', |
| user=self.__params.hbase_user |
| ) |
| |
| Logger.info("Done creating HBase Tables for indexing") |
| self.set_hbase_configured() |
| |
| def set_hbase_acls(self): |
| Logger.info("Setting HBase ACLs for indexing") |
| if self.__params.security_enabled: |
| metron_security.kinit(self.__params.kinit_path_local, |
| self.__params.hbase_keytab_path, |
| self.__params.hbase_principal_name, |
| execute_user=self.__params.hbase_user) |
| cmd = "echo \"grant '{0}', 'RW', '{1}'\" | hbase shell -n" |
| add_update_acl_cmd = cmd.format(self.__params.metron_user, self.__params.update_table) |
| Execute(add_update_acl_cmd, |
| tries=3, |
| try_sleep=5, |
| logoutput=False, |
| path='/usr/sbin:/sbin:/usr/local/bin:/bin:/usr/bin', |
| user=self.__params.hbase_user |
| ) |
| |
| Logger.info("Done setting HBase ACLs for indexing") |
| self.set_hbase_acl_configured() |
| |
| def set_acl_configured(self): |
| File(self.__params.indexing_acl_configured_flag_file, |
| content="", |
| owner=self.__params.metron_user, |
| mode=0755) |
| |
| def set_hdfs_perm_configured(self): |
| File(self.__params.indexing_hdfs_perm_configured_flag_file, |
| content="", |
| owner=self.__params.metron_user, |
| mode=0755) |
| |
| def init_kafka_topics(self): |
| Logger.info('Creating Kafka topics for indexing') |
| metron_service.init_kafka_topics(self.__params, [self.__indexing_topic]) |
| |
| def init_kafka_acls(self): |
| Logger.info('Creating Kafka ACLs for indexing') |
| # Indexed topic names matches the group |
| metron_service.init_kafka_acls(self.__params, [self.__indexing_topic], [self.__indexing_topic]) |
| |
| def init_hdfs_dir(self): |
| Logger.info('Setting up HDFS indexing directory') |
| |
| # Non Kerberized Metron runs under 'storm', requiring write under the 'hadoop' group. |
| # Kerberized Metron runs under it's own user. |
| ownership = 0755 if self.__params.security_enabled else 0775 |
| Logger.info('HDFS indexing directory ownership is: ' + str(ownership)) |
| self.__params.HdfsResource(self.__params.metron_apps_indexed_hdfs_dir, |
| type="directory", |
| action="create_on_execute", |
| owner=self.__params.metron_user, |
| group=self.__params.hadoop_group, |
| mode=ownership, |
| ) |
| Logger.info('Done creating HDFS indexing directory') |
| |
| def start_indexing_topology(self, env): |
| Logger.info('Starting ' + self.__indexing_topology) |
| |
| if not self.is_topology_active(env): |
| if self.__params.security_enabled: |
| metron_security.kinit(self.__params.kinit_path_local, |
| self.__params.metron_keytab_path, |
| self.__params.metron_principal_name, |
| execute_user=self.__params.metron_user) |
| |
| start_cmd_template = """{0}/bin/start_elasticsearch_topology.sh \ |
| -s {1} \ |
| -z {2}""" |
| start_cmd = start_cmd_template.format(self.__params.metron_home, |
| self.__indexing_topology, |
| self.__params.zookeeper_quorum) |
| Execute(start_cmd, user=self.__params.metron_user, tries=3, try_sleep=5, logoutput=True) |
| |
| else: |
| Logger.info('Indexing topology already running') |
| |
| Logger.info('Finished starting indexing topology') |
| |
| def stop_indexing_topology(self, env): |
| Logger.info('Stopping ' + self.__indexing_topology) |
| |
| if self.is_topology_active(env): |
| if self.__params.security_enabled: |
| metron_security.kinit(self.__params.kinit_path_local, |
| self.__params.metron_keytab_path, |
| self.__params.metron_principal_name, |
| execute_user=self.__params.metron_user) |
| stop_cmd = 'storm kill ' + self.__indexing_topology |
| Execute(stop_cmd, user=self.__params.metron_user, tries=3, try_sleep=5, logoutput=True) |
| |
| else: |
| Logger.info("Indexing topology already stopped") |
| |
| Logger.info('Done stopping indexing topologies') |
| |
| def restart_indexing_topology(self, env): |
| Logger.info('Restarting the indexing topologies') |
| self.stop_indexing_topology(env) |
| |
| # Wait for old topology to be cleaned up by Storm, before starting again. |
| retries = 0 |
| topology_active = self.is_topology_active(env) |
| while self.is_topology_active(env) and retries < 3: |
| Logger.info('Existing topology still active. Will wait and retry') |
| time.sleep(10) |
| retries += 1 |
| |
| if not topology_active: |
| Logger.info('Waiting for storm kill to complete') |
| time.sleep(30) |
| self.start_indexing_topology(env) |
| Logger.info('Done restarting the indexing topologies') |
| else: |
| Logger.warning('Retries exhausted. Existing topology not cleaned up. Aborting topology start.') |
| |
| def is_topology_active(self, env): |
| env.set_params(self.__params) |
| active = True |
| topologies = metron_service.get_running_topologies(self.__params) |
| is_running = False |
| if self.__indexing_topology in topologies: |
| is_running = topologies[self.__indexing_topology] in ['ACTIVE', 'REBALANCING'] |
| active &= is_running |
| return active |
