http://git-wip-us.apache.org/repos/asf/ambari/blob/8f051fc5/ambari-server/src/main/resources/stacks/BigInsights/4.2.5/services/HDFS/package/scripts/utils.py ---------------------------------------------------------------------- diff --git a/ambari-server/src/main/resources/stacks/BigInsights/4.2.5/services/HDFS/package/scripts/utils.py b/ambari-server/src/main/resources/stacks/BigInsights/4.2.5/services/HDFS/package/scripts/utils.py new file mode 100644 index 0000000..3522298 --- /dev/null +++ b/ambari-server/src/main/resources/stacks/BigInsights/4.2.5/services/HDFS/package/scripts/utils.py @@ -0,0 +1,385 @@ +""" +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 re +import urllib2 +import ambari_simplejson as json # simplejson is much faster comparing to Python 2.6 json module and has the same functions set. + +from resource_management.core.resources.system import Directory, File, Execute +from resource_management.libraries.functions.format import format +from resource_management.libraries.functions import check_process_status +from resource_management.libraries.functions import StackFeature +from resource_management.libraries.functions.stack_features import check_stack_feature +from resource_management.core import shell +from resource_management.core.shell import as_user, as_sudo +from resource_management.core.exceptions import ComponentIsNotRunning +from resource_management.core.logger import Logger +from resource_management.libraries.functions.curl_krb_request import curl_krb_request +from resource_management.core.exceptions import Fail +from resource_management.libraries.script.script import Script +from resource_management.libraries.functions.namenode_ha_utils import get_namenode_states +from resource_management.libraries.script.script import Script +from resource_management.libraries.functions.show_logs import show_logs +from ambari_commons.inet_utils import ensure_ssl_using_protocol +from zkfc_slave import ZkfcSlaveDefault + +ensure_ssl_using_protocol(Script.get_force_https_protocol_name()) + +def safe_zkfc_op(action, env): + """ + Idempotent operation on the zkfc process to either start or stop it. + :param action: start or stop + :param env: environment + """ + Logger.info("Performing action {0} on zkfc.".format(action)) + zkfc = None + if action == "start": + try: + ZkfcSlaveDefault.status_static(env) + except ComponentIsNotRunning: + ZkfcSlaveDefault.start_static(env) + + if action == "stop": + try: + ZkfcSlaveDefault.status_static(env) + except ComponentIsNotRunning: + pass + else: + ZkfcSlaveDefault.stop_static(env) + +def initiate_safe_zkfc_failover(): + """ + If this is the active namenode, initiate a safe failover and wait for it to become the standby. + + If an error occurs, force a failover to happen by killing zkfc on this host. In this case, during the Restart, + will also have to start ZKFC manually. + """ + import params + + # Must kinit before running the HDFS command + if params.security_enabled: + Execute(format("{kinit_path_local} -kt {hdfs_user_keytab} {hdfs_principal_name}"), + user = params.hdfs_user) + + active_namenode_id = None + standby_namenode_id = None + active_namenodes, standby_namenodes, unknown_namenodes = get_namenode_states(params.hdfs_site, params.security_enabled, params.hdfs_user) + if active_namenodes: + active_namenode_id = active_namenodes[0][0] + if standby_namenodes: + standby_namenode_id = standby_namenodes[0][0] + + if active_namenode_id: + Logger.info(format("Active NameNode id: {active_namenode_id}")) + if standby_namenode_id: + Logger.info(format("Standby NameNode id: {standby_namenode_id}")) + if unknown_namenodes: + for unknown_namenode in unknown_namenodes: + Logger.info("NameNode HA state for {0} is unknown".format(unknown_namenode[0])) + + if params.namenode_id == active_namenode_id and params.other_namenode_id == standby_namenode_id: + # Failover if this NameNode is active and other NameNode is up and in standby (i.e. ready to become active on failover) + Logger.info(format("NameNode {namenode_id} is active and NameNode {other_namenode_id} is in standby")) + + failover_command = format("hdfs haadmin -ns {dfs_ha_nameservices} -failover {namenode_id} {other_namenode_id}") + check_standby_cmd = format("hdfs haadmin -ns {dfs_ha_nameservices} -getServiceState {namenode_id} | grep standby") + + msg = "Rolling Upgrade - Initiating a ZKFC failover on active NameNode host {0}.".format(params.hostname) + Logger.info(msg) + code, out = shell.call(failover_command, user=params.hdfs_user, logoutput=True) + Logger.info(format("Rolling Upgrade - failover command returned {code}")) + wait_for_standby = False + + if code == 0: + wait_for_standby = True + else: + # Try to kill ZKFC manually + was_zkfc_killed = kill_zkfc(params.hdfs_user) + code, out = shell.call(check_standby_cmd, user=params.hdfs_user, logoutput=True) + Logger.info(format("Rolling Upgrade - check for standby returned {code}")) + if code == 255 and out: + Logger.info("Rolling Upgrade - NameNode is already down.") + else: + if was_zkfc_killed: + # Only mandate that this be the standby namenode if ZKFC was indeed killed to initiate a failover. + wait_for_standby = True + + if wait_for_standby: + Logger.info("Waiting for this NameNode to become the standby one.") + Execute(check_standby_cmd, + user=params.hdfs_user, + tries=50, + try_sleep=6, + logoutput=True) + else: + msg = "Rolling Upgrade - Skipping ZKFC failover on NameNode host {0}.".format(params.hostname) + Logger.info(msg) + +def kill_zkfc(zkfc_user): + """ + There are two potential methods for failing over the namenode, especially during a Rolling Upgrade. + Option 1. Kill zkfc on primary namenode provided that the secondary is up and has zkfc running on it. + Option 2. Silent failover + :param zkfc_user: User that started the ZKFC process. + :return: Return True if ZKFC was killed, otherwise, false. + """ + import params + if params.dfs_ha_enabled: + if params.zkfc_pid_file: + check_process = as_user(format("ls {zkfc_pid_file} > /dev/null 2>&1 && ps -p `cat {zkfc_pid_file}` > /dev/null 2>&1"), user=zkfc_user) + code, out = shell.call(check_process) + if code == 0: + Logger.debug("ZKFC is running and will be killed.") + kill_command = format("kill -15 `cat {zkfc_pid_file}`") + Execute(kill_command, + user=zkfc_user + ) + File(params.zkfc_pid_file, + action = "delete", + ) + return True + return False + +def service(action=None, name=None, user=None, options="", create_pid_dir=False, + create_log_dir=False): + """ + :param action: Either "start" or "stop" + :param name: Component name, e.g., "namenode", "datanode", "secondarynamenode", "zkfc" + :param user: User to run the command as + :param options: Additional options to pass to command as a string + :param create_pid_dir: Create PID directory + :param create_log_dir: Crate log file directory + """ + import params + + options = options if options else "" + pid_dir = format("{hadoop_pid_dir_prefix}/{user}") + pid_file = format("{pid_dir}/hadoop-{user}-{name}.pid") + hadoop_env_exports = { + 'HADOOP_LIBEXEC_DIR': params.hadoop_libexec_dir + } + log_dir = format("{hdfs_log_dir_prefix}/{user}") + + # NFS GATEWAY is always started by root using jsvc due to rpcbind bugs + # on Linux such as CentOS6.2. https://bugzilla.redhat.com/show_bug.cgi?id=731542 + if name == "nfs3" : + pid_file = format("{pid_dir}/hadoop_privileged_nfs3.pid") + custom_export = { + 'HADOOP_PRIVILEGED_NFS_USER': params.hdfs_user, + 'HADOOP_PRIVILEGED_NFS_PID_DIR': pid_dir, + 'HADOOP_PRIVILEGED_NFS_LOG_DIR': log_dir + } + hadoop_env_exports.update(custom_export) + + process_id_exists_command = as_sudo(["test", "-f", pid_file]) + " && " + as_sudo(["pgrep", "-F", pid_file]) + + # on STOP directories shouldn't be created + # since during stop still old dirs are used (which were created during previous start) + if action != "stop": + if name == "nfs3": + Directory(params.hadoop_pid_dir_prefix, + mode=0755, + owner=params.root_user, + group=params.root_group + ) + else: + Directory(params.hadoop_pid_dir_prefix, + mode=0755, + owner=params.hdfs_user, + group=params.user_group + ) + if create_pid_dir: + Directory(pid_dir, + owner=user, + group=params.user_group, + create_parents = True) + if create_log_dir: + if name == "nfs3": + Directory(log_dir, + mode=0775, + owner=params.root_user, + group=params.user_group) + else: + Directory(log_dir, + owner=user, + group=params.user_group, + create_parents = True) + + if params.security_enabled and name == "datanode": + ## The directory where pid files are stored in the secure data environment. + hadoop_secure_dn_pid_dir = format("{hadoop_pid_dir_prefix}/{hdfs_user}") + hadoop_secure_dn_pid_file = format("{hadoop_secure_dn_pid_dir}/hadoop_secure_dn.pid") + + # At datanode_non_root stack version and further, we may start datanode as a non-root even in secure cluster + if not (params.stack_version_formatted and check_stack_feature(StackFeature.DATANODE_NON_ROOT, params.stack_version_formatted)) or params.secure_dn_ports_are_in_use: + user = "root" + pid_file = format( + "{hadoop_pid_dir_prefix}/{hdfs_user}/hadoop-{hdfs_user}-{name}.pid") + + if action == 'stop' and (params.stack_version_formatted and check_stack_feature(StackFeature.DATANODE_NON_ROOT, params.stack_version_formatted)) and \ + os.path.isfile(hadoop_secure_dn_pid_file): + # We need special handling for this case to handle the situation + # when we configure non-root secure DN and then restart it + # to handle new configs. Otherwise we will not be able to stop + # a running instance + user = "root" + + try: + check_process_status(hadoop_secure_dn_pid_file) + + custom_export = { + 'HADOOP_SECURE_DN_USER': params.hdfs_user + } + hadoop_env_exports.update(custom_export) + + except ComponentIsNotRunning: + pass + + hadoop_daemon = format("{hadoop_bin}/hadoop-daemon.sh") + + if user == "root": + cmd = [hadoop_daemon, "--config", params.hadoop_conf_dir, action, name] + if options: + cmd += [options, ] + daemon_cmd = as_sudo(cmd) + else: + cmd = format("{ulimit_cmd} {hadoop_daemon} --config {hadoop_conf_dir} {action} {name}") + if options: + cmd += " " + options + daemon_cmd = as_user(cmd, user) + + if action == "start": + # remove pid file from dead process + File(pid_file, action="delete", not_if=process_id_exists_command) + + try: + Execute(daemon_cmd, not_if=process_id_exists_command, environment=hadoop_env_exports) + except: + show_logs(log_dir, user) + raise + elif action == "stop": + try: + Execute(daemon_cmd, only_if=process_id_exists_command, environment=hadoop_env_exports) + except: + show_logs(log_dir, user) + raise + File(pid_file, action="delete") + +def get_jmx_data(nn_address, modeler_type, metric, encrypted=False, security_enabled=False): + """ + :param nn_address: Namenode Address, e.g., host:port, ** MAY ** be preceded with "http://"; or "https://"; already. + If not preceded, will use the encrypted param to determine. + :param modeler_type: Modeler type to query using startswith function + :param metric: Metric to return + :return: Return an object representation of the metric, or None if it does not exist + """ + if not nn_address or not modeler_type or not metric: + return None + + nn_address = nn_address.strip() + if not nn_address.startswith("http"): + nn_address = ("https://"; if encrypted else "http://";) + nn_address + if not nn_address.endswith("/"): + nn_address = nn_address + "/" + + nn_address = nn_address + "jmx" + Logger.info("Retrieve modeler: %s, metric: %s from JMX endpoint %s" % (modeler_type, metric, nn_address)) + + if security_enabled: + import params + data, error_msg, time_millis = curl_krb_request(params.tmp_dir, params.smoke_user_keytab, params.smokeuser_principal, nn_address, + "jn_upgrade", params.kinit_path_local, False, None, params.smoke_user) + else: + data = urllib2.urlopen(nn_address).read() + my_data = None + if data: + data_dict = json.loads(data) + if data_dict: + for el in data_dict['beans']: + if el is not None and el['modelerType'] is not None and el['modelerType'].startswith(modeler_type): + if metric in el: + my_data = el[metric] + if my_data: + my_data = json.loads(str(my_data)) + break + return my_data + +def get_port(address): + """ + Extracts port from the address like 0.0.0.0:1019 + """ + if address is None: + return None + m = re.search(r'(?:http(?:s)?://)?([\w\d.]*):(\d{1,5})', address) + if m is not None and len(m.groups()) >= 2: + return int(m.group(2)) + else: + return None + + +def is_secure_port(port): + """ + Returns True if port is root-owned at *nix systems + """ + if port is not None: + return port < 1024 + else: + return False + +def is_previous_fs_image(): + """ + Return true if there's a previous folder in the HDFS namenode directories. + """ + import params + if params.dfs_name_dir: + nn_name_dirs = params.dfs_name_dir.split(',') + for nn_dir in nn_name_dirs: + prev_dir = os.path.join(nn_dir, "previous") + if os.path.isdir(prev_dir): + return True + return False + +def get_hdfs_binary(distro_component_name): + """ + Get the hdfs binary to use depending on the stack and version. + :param distro_component_name: e.g., hadoop-hdfs-namenode, hadoop-hdfs-datanode + :return: The hdfs binary to use + """ + import params + hdfs_binary = "hdfs" + if params.stack_version_formatted and check_stack_feature(StackFeature.ROLLING_UPGRADE, params.stack_version_formatted): + hdfs_binary = "{0}/current/{1}/bin/hdfs".format(params.stack_root, distro_component_name) + + return hdfs_binary + +def get_dfsadmin_base_command(hdfs_binary, use_specific_namenode = False): + """ + Get the dfsadmin base command constructed using hdfs_binary path and passing namenode address as explicit -fs argument + :param hdfs_binary: path to hdfs binary to use + :param use_specific_namenode: flag if set and Namenode HA is enabled, then the dfsadmin command will use + current namenode's address + :return: the constructed dfsadmin base command + """ + import params + dfsadmin_base_command = "" + if params.dfs_ha_enabled and use_specific_namenode: + dfsadmin_base_command = format("{hdfs_binary} dfsadmin -fs hdfs://{params.namenode_rpc}") + else: + dfsadmin_base_command = format("{hdfs_binary} dfsadmin -fs {params.namenode_address}") + return dfsadmin_base_command
http://git-wip-us.apache.org/repos/asf/ambari/blob/8f051fc5/ambari-server/src/main/resources/stacks/BigInsights/4.2.5/services/HDFS/package/scripts/zkfc_slave.py ---------------------------------------------------------------------- diff --git a/ambari-server/src/main/resources/stacks/BigInsights/4.2.5/services/HDFS/package/scripts/zkfc_slave.py b/ambari-server/src/main/resources/stacks/BigInsights/4.2.5/services/HDFS/package/scripts/zkfc_slave.py new file mode 100644 index 0000000..aa0ab0f --- /dev/null +++ b/ambari-server/src/main/resources/stacks/BigInsights/4.2.5/services/HDFS/package/scripts/zkfc_slave.py @@ -0,0 +1,200 @@ +""" +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. + +""" +# this is needed to avoid a circular dependency since utils.py calls this class +import utils +from hdfs import hdfs + +from ambari_commons import OSConst +from ambari_commons.os_family_impl import OsFamilyImpl +from resource_management.core.logger import Logger +from resource_management.core.exceptions import Fail +from resource_management.core.resources.system import Directory +from resource_management.core.resources.service import Service +from resource_management.core import shell +from resource_management.libraries.functions.check_process_status import check_process_status +from resource_management.libraries.functions.security_commons import build_expectations +from resource_management.libraries.functions.security_commons import cached_kinit_executor +from resource_management.libraries.functions.security_commons import get_params_from_filesystem +from resource_management.libraries.functions.security_commons import validate_security_config_properties +from resource_management.libraries.functions.security_commons import FILE_TYPE_XML +from resource_management.libraries.script import Script + +class ZkfcSlave(Script): + def install(self, env): + import params + env.set_params(params) + self.install_packages(env) + + def configure(env): + ZkfcSlave.configure_static(env) + + @staticmethod + def configure_static(env): + import params + env.set_params(params) + hdfs("zkfc_slave") + pass + +@OsFamilyImpl(os_family=OsFamilyImpl.DEFAULT) +class ZkfcSlaveDefault(ZkfcSlave): + + def start(self, env, upgrade_type=None): + ZkfcSlaveDefault.start_static(env, upgrade_type) + + @staticmethod + def start_static(env, upgrade_type=None): + import params + + env.set_params(params) + ZkfcSlave.configure_static(env) + Directory(params.hadoop_pid_dir_prefix, + mode=0755, + owner=params.hdfs_user, + group=params.user_group + ) + + # format the znode for this HA setup + # only run this format command if the active namenode hostname is set + # The Ambari UI HA Wizard prompts the user to run this command + # manually, so this guarantees it is only run in the Blueprints case + if params.dfs_ha_enabled and \ + params.dfs_ha_namenode_active is not None: + success = initialize_ha_zookeeper(params) + if not success: + raise Fail("Could not initialize HA state in zookeeper") + + utils.service( + action="start", name="zkfc", user=params.hdfs_user, create_pid_dir=True, + create_log_dir=True + ) + + def stop(self, env, upgrade_type=None): + ZkfcSlaveDefault.stop_static(env, upgrade_type) + + @staticmethod + def stop_static(env, upgrade_type=None): + import params + + env.set_params(params) + utils.service( + action="stop", name="zkfc", user=params.hdfs_user, create_pid_dir=True, + create_log_dir=True + ) + + + def status(self, env): + ZkfcSlaveDefault.status_static(env) + + @staticmethod + def status_static(env): + import status_params + env.set_params(status_params) + check_process_status(status_params.zkfc_pid_file) + + def security_status(self, env): + import status_params + env.set_params(status_params) + props_value_check = {"hadoop.security.authentication": "kerberos", + "hadoop.security.authorization": "true"} + props_empty_check = ["hadoop.security.auth_to_local"] + props_read_check = None + core_site_expectations = build_expectations('core-site', props_value_check, props_empty_check, + props_read_check) + hdfs_expectations = {} + hdfs_expectations.update(core_site_expectations) + + security_params = get_params_from_filesystem(status_params.hadoop_conf_dir, + {'core-site.xml': FILE_TYPE_XML}) + result_issues = validate_security_config_properties(security_params, hdfs_expectations) + if 'core-site' in security_params and 'hadoop.security.authentication' in security_params['core-site'] and \ + security_params['core-site']['hadoop.security.authentication'].lower() == 'kerberos': + if not result_issues: # If all validations passed successfully + if status_params.hdfs_user_principal or status_params.hdfs_user_keytab: + try: + cached_kinit_executor(status_params.kinit_path_local, + status_params.hdfs_user, + status_params.hdfs_user_keytab, + status_params.hdfs_user_principal, + status_params.hostname, + status_params.tmp_dir) + self.put_structured_out({"securityState": "SECURED_KERBEROS"}) + except Exception as e: + self.put_structured_out({"securityState": "ERROR"}) + self.put_structured_out({"securityStateErrorInfo": str(e)}) + else: + self.put_structured_out( + {"securityIssuesFound": "hdfs principal and/or keytab file is not specified"}) + self.put_structured_out({"securityState": "UNSECURED"}) + else: + issues = [] + for cf in result_issues: + issues.append("Configuration file %s did not pass the validation. Reason: %s" % (cf, result_issues[cf])) + self.put_structured_out({"securityIssuesFound": ". ".join(issues)}) + self.put_structured_out({"securityState": "UNSECURED"}) + else: + self.put_structured_out({"securityState": "UNSECURED"}) + + def get_log_folder(self): + import params + return params.hdfs_log_dir + + def get_user(self): + import params + return params.hdfs_user + +def initialize_ha_zookeeper(params): + try: + iterations = 10 + formatZK_cmd = "hdfs zkfc -formatZK -nonInteractive" + Logger.info("Initialize HA state in ZooKeeper: %s" % (formatZK_cmd)) + for i in range(iterations): + Logger.info('Try %d out of %d' % (i+1, iterations)) + code, out = shell.call(formatZK_cmd, logoutput=False, user=params.hdfs_user) + if code == 0: + Logger.info("HA state initialized in ZooKeeper successfully") + return True + elif code == 2: + Logger.info("HA state already initialized in ZooKeeper") + return True + else: + Logger.warning('HA state initialization in ZooKeeper failed with %d error code. Will retry' % (code)) + except Exception as ex: + Logger.error('HA state initialization in ZooKeeper threw an exception. Reason %s' %(str(ex))) + return False + +@OsFamilyImpl(os_family=OSConst.WINSRV_FAMILY) +class ZkfcSlaveWindows(ZkfcSlave): + def start(self, env): + import params + self.configure(env) + Service(params.zkfc_win_service_name, action="start") + + def stop(self, env): + import params + Service(params.zkfc_win_service_name, action="stop") + + def status(self, env): + import status_params + from resource_management.libraries.functions.windows_service_utils import check_windows_service_status + + env.set_params(status_params) + check_windows_service_status(status_params.zkfc_win_service_name) + +if __name__ == "__main__": + ZkfcSlave().execute() http://git-wip-us.apache.org/repos/asf/ambari/blob/8f051fc5/ambari-server/src/main/resources/stacks/BigInsights/4.2.5/services/HDFS/package/templates/exclude_hosts_list.j2 ---------------------------------------------------------------------- diff --git a/ambari-server/src/main/resources/stacks/BigInsights/4.2.5/services/HDFS/package/templates/exclude_hosts_list.j2 b/ambari-server/src/main/resources/stacks/BigInsights/4.2.5/services/HDFS/package/templates/exclude_hosts_list.j2 new file mode 100644 index 0000000..a92cdc1 --- /dev/null +++ b/ambari-server/src/main/resources/stacks/BigInsights/4.2.5/services/HDFS/package/templates/exclude_hosts_list.j2 @@ -0,0 +1,21 @@ +{# +# 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. +#} + +{% for host in hdfs_exclude_file %} +{{host}} +{% endfor %} \ No newline at end of file http://git-wip-us.apache.org/repos/asf/ambari/blob/8f051fc5/ambari-server/src/main/resources/stacks/BigInsights/4.2.5/services/HDFS/package/templates/hdfs.conf.j2 ---------------------------------------------------------------------- diff --git a/ambari-server/src/main/resources/stacks/BigInsights/4.2.5/services/HDFS/package/templates/hdfs.conf.j2 b/ambari-server/src/main/resources/stacks/BigInsights/4.2.5/services/HDFS/package/templates/hdfs.conf.j2 new file mode 100644 index 0000000..fad5621 --- /dev/null +++ b/ambari-server/src/main/resources/stacks/BigInsights/4.2.5/services/HDFS/package/templates/hdfs.conf.j2 @@ -0,0 +1,35 @@ +{# +# 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. +#} + +# 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. + +{{hdfs_user}} - nofile {{hdfs_user_nofile_limit}} +{{hdfs_user}} - nproc {{hdfs_user_nproc_limit}} \ No newline at end of file http://git-wip-us.apache.org/repos/asf/ambari/blob/8f051fc5/ambari-server/src/main/resources/stacks/BigInsights/4.2.5/services/HDFS/package/templates/slaves.j2 ---------------------------------------------------------------------- diff --git a/ambari-server/src/main/resources/stacks/BigInsights/4.2.5/services/HDFS/package/templates/slaves.j2 b/ambari-server/src/main/resources/stacks/BigInsights/4.2.5/services/HDFS/package/templates/slaves.j2 new file mode 100644 index 0000000..4a9e713 --- /dev/null +++ b/ambari-server/src/main/resources/stacks/BigInsights/4.2.5/services/HDFS/package/templates/slaves.j2 @@ -0,0 +1,21 @@ +{# +# 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. +#} + +{% for host in slave_hosts %} +{{host}} +{% endfor %}
