| # 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 re |
| import time |
| |
| from ducktape.services.service import Service |
| from ducktape.utils.util import wait_until |
| from ducktape.cluster.remoteaccount import RemoteCommandError |
| |
| from kafkatest.directory_layout.kafka_path import KafkaPathResolverMixin |
| from kafkatest.services.security.security_config import SecurityConfig |
| from kafkatest.version import DEV_BRANCH |
| |
| |
| class ZookeeperService(KafkaPathResolverMixin, Service): |
| |
| logs = { |
| "zk_log": { |
| "path": "/mnt/zk.log", |
| "collect_default": True}, |
| "zk_data": { |
| "path": "/mnt/zookeeper", |
| "collect_default": False} |
| } |
| |
| def __init__(self, context, num_nodes, zk_sasl = False): |
| """ |
| :type context |
| """ |
| self.kafka_opts = "" |
| self.zk_sasl = zk_sasl |
| super(ZookeeperService, self).__init__(context, num_nodes) |
| |
| @property |
| def security_config(self): |
| return SecurityConfig(self.context, zk_sasl=self.zk_sasl) |
| |
| @property |
| def security_system_properties(self): |
| return "-Dzookeeper.authProvider.1=org.apache.zookeeper.server.auth.SASLAuthenticationProvider " \ |
| "-DjaasLoginRenew=3600000 " \ |
| "-Djava.security.auth.login.config=%s " \ |
| "-Djava.security.krb5.conf=%s " % (self.security_config.JAAS_CONF_PATH, self.security_config.KRB5CONF_PATH) |
| |
| @property |
| def zk_principals(self): |
| return " zkclient " + ' '.join(['zookeeper/' + zk_node.account.hostname for zk_node in self.nodes]) |
| |
| def start_node(self, node): |
| idx = self.idx(node) |
| self.logger.info("Starting ZK node %d on %s", idx, node.account.hostname) |
| |
| node.account.ssh("mkdir -p /mnt/zookeeper") |
| node.account.ssh("echo %d > /mnt/zookeeper/myid" % idx) |
| |
| self.security_config.setup_node(node) |
| config_file = self.render('zookeeper.properties') |
| self.logger.info("zookeeper.properties:") |
| self.logger.info(config_file) |
| node.account.create_file("/mnt/zookeeper.properties", config_file) |
| |
| start_cmd = "export KAFKA_OPTS=\"%s\";" % (self.kafka_opts + ' ' + self.security_system_properties) \ |
| if self.security_config.zk_sasl else self.kafka_opts |
| start_cmd += "%s " % self.path.script("zookeeper-server-start.sh", node) |
| start_cmd += "/mnt/zookeeper.properties 1>> %(path)s 2>> %(path)s &" % self.logs["zk_log"] |
| node.account.ssh(start_cmd) |
| |
| wait_until(lambda: self.listening(node), timeout_sec=30, err_msg="Zookeeper node failed to start") |
| |
| def listening(self, node): |
| try: |
| cmd = "nc -z %s %s" % (node.account.hostname, 2181) |
| node.account.ssh_output(cmd, allow_fail=False) |
| self.logger.debug("Zookeeper started accepting connections at: '%s:%s')", node.account.hostname, 2181) |
| return True |
| except (RemoteCommandError, ValueError) as e: |
| return False |
| |
| def pids(self, node): |
| try: |
| cmd = "ps ax | grep -i zookeeper | grep java | grep -v grep | awk '{print $1}'" |
| pid_arr = [pid for pid in node.account.ssh_capture(cmd, allow_fail=True, callback=int)] |
| return pid_arr |
| except (RemoteCommandError, ValueError) as e: |
| return [] |
| |
| def alive(self, node): |
| return len(self.pids(node)) > 0 |
| |
| def stop_node(self, node): |
| idx = self.idx(node) |
| self.logger.info("Stopping %s node %d on %s" % (type(self).__name__, idx, node.account.hostname)) |
| node.account.kill_process("zookeeper", allow_fail=False) |
| wait_until(lambda: not self.alive(node), timeout_sec=5, err_msg="Timed out waiting for zookeeper to stop.") |
| |
| def clean_node(self, node): |
| self.logger.info("Cleaning ZK node %d on %s", self.idx(node), node.account.hostname) |
| if self.alive(node): |
| self.logger.warn("%s %s was still alive at cleanup time. Killing forcefully..." % |
| (self.__class__.__name__, node.account)) |
| node.account.kill_process("zookeeper", clean_shutdown=False, allow_fail=True) |
| node.account.ssh("rm -rf /mnt/zookeeper /mnt/zookeeper.properties /mnt/zk.log", allow_fail=False) |
| |
| def connect_setting(self): |
| return ','.join([node.account.hostname + ':2181' for node in self.nodes]) |
| |
| # |
| # This call is used to simulate a rolling upgrade to enable/disable |
| # the use of ZooKeeper ACLs. |
| # |
| def zookeeper_migration(self, node, zk_acl): |
| la_migra_cmd = "%s --zookeeper.acl=%s --zookeeper.connect=%s" % \ |
| (self.path.script("zookeeper-security-migration.sh", node), zk_acl, self.connect_setting()) |
| node.account.ssh(la_migra_cmd) |
| |
| def query(self, path): |
| """ |
| Queries zookeeper for data associated with 'path' and returns all fields in the schema |
| """ |
| kafka_run_class = self.path.script("kafka-run-class.sh", DEV_BRANCH) |
| cmd = "%s kafka.tools.ZooKeeperMainWrapper -server %s get %s" % \ |
| (kafka_run_class, self.connect_setting(), path) |
| self.logger.debug(cmd) |
| |
| node = self.nodes[0] |
| result = None |
| for line in node.account.ssh_capture(cmd): |
| # loop through all lines in the output, but only hold on to the first match |
| if result is None: |
| match = re.match("^({.+})$", line) |
| if match is not None: |
| result = match.groups()[0] |
| return result |