mirror of https://github.com/apache/kafka.git
219 lines
11 KiB
Python
219 lines
11 KiB
Python
# Licensed to the Apache Software Foundation (ASF) under one or more
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# contributor license agreements. See the NOTICE file distributed with
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# this work for additional information regarding copyright ownership.
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# The ASF licenses this file to You under the Apache License, Version 2.0
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# (the "License"); you may not use this file except in compliance with
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# the License. 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 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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from kafkatest.tests.kafka_test import KafkaTest
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from kafkatest.services.connect import ConnectDistributedService, ConnectRestError, ConnectServiceBase
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from ducktape.utils.util import wait_until
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from ducktape.mark import matrix
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from ducktape.mark.resource import cluster
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from ducktape.cluster.remoteaccount import RemoteCommandError
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import json
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import itertools
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class ConnectRestApiTest(KafkaTest):
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"""
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Test of Kafka Connect's REST API endpoints.
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"""
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FILE_SOURCE_CONNECTOR = 'org.apache.kafka.connect.file.FileStreamSourceConnector'
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FILE_SINK_CONNECTOR = 'org.apache.kafka.connect.file.FileStreamSinkConnector'
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FILE_SOURCE_CONFIGS = {'name', 'connector.class', 'tasks.max', 'key.converter', 'value.converter', 'header.converter', 'batch.size',
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'topic', 'file', 'transforms', 'config.action.reload', 'errors.retry.timeout', 'errors.retry.delay.max.ms',
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'errors.tolerance', 'errors.log.enable', 'errors.log.include.messages', 'predicates', 'topic.creation.groups'}
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FILE_SINK_CONFIGS = {'name', 'connector.class', 'tasks.max', 'key.converter', 'value.converter', 'header.converter', 'topics',
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'file', 'transforms', 'topics.regex', 'config.action.reload', 'errors.retry.timeout', 'errors.retry.delay.max.ms',
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'errors.tolerance', 'errors.log.enable', 'errors.log.include.messages', 'errors.deadletterqueue.topic.name',
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'errors.deadletterqueue.topic.replication.factor', 'errors.deadletterqueue.context.headers.enable', 'predicates'}
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INPUT_FILE = "/mnt/connect.input"
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INPUT_FILE2 = "/mnt/connect.input2"
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OUTPUT_FILE = "/mnt/connect.output"
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TOPIC = "topic-${file:%s:topic.external}" % ConnectServiceBase.EXTERNAL_CONFIGS_FILE
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TOPIC_TEST = "test"
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DEFAULT_BATCH_SIZE = "2000"
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OFFSETS_TOPIC = "connect-offsets"
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OFFSETS_REPLICATION_FACTOR = "1"
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OFFSETS_PARTITIONS = "1"
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CONFIG_TOPIC = "connect-configs"
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CONFIG_REPLICATION_FACTOR = "1"
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STATUS_TOPIC = "connect-status"
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STATUS_REPLICATION_FACTOR = "1"
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STATUS_PARTITIONS = "1"
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# Since tasks can be assigned to any node and we're testing with files, we need to make sure the content is the same
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# across all nodes.
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INPUT_LIST = ["foo", "bar", "baz"]
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INPUTS = "\n".join(INPUT_LIST) + "\n"
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LONGER_INPUT_LIST = ["foo", "bar", "baz", "razz", "ma", "tazz"]
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LONER_INPUTS = "\n".join(LONGER_INPUT_LIST) + "\n"
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SCHEMA = {"type": "string", "optional": False}
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CONNECT_PROTOCOL="compatible"
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def __init__(self, test_context):
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super(ConnectRestApiTest, self).__init__(test_context, num_zk=1, num_brokers=1, topics={
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'test': {'partitions': 1, 'replication-factor': 1}
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})
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self.cc = ConnectDistributedService(test_context, 2, self.kafka, [self.INPUT_FILE, self.INPUT_FILE2, self.OUTPUT_FILE])
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@cluster(num_nodes=4)
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@matrix(connect_protocol=['compatible', 'eager'])
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def test_rest_api(self, connect_protocol):
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# Template parameters
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self.key_converter = "org.apache.kafka.connect.json.JsonConverter"
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self.value_converter = "org.apache.kafka.connect.json.JsonConverter"
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self.schemas = True
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self.CONNECT_PROTOCOL = connect_protocol
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self.cc.set_configs(lambda node: self.render("connect-distributed.properties", node=node))
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self.cc.set_external_configs(lambda node: self.render("connect-file-external.properties", node=node))
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self.cc.start()
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assert self.cc.list_connectors() == []
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# After MM2 and the connector classes that it added, the assertion here checks that the registered
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# Connect plugins are a superset of the connectors expected to be present.
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assert set([connector_plugin['class'] for connector_plugin in self.cc.list_connector_plugins()]).issuperset(
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{self.FILE_SOURCE_CONNECTOR, self.FILE_SINK_CONNECTOR})
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source_connector_props = self.render("connect-file-source.properties")
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sink_connector_props = self.render("connect-file-sink.properties")
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self.logger.info("Validating connector configurations")
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source_connector_config = self._config_dict_from_props(source_connector_props)
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configs = self.cc.validate_config(self.FILE_SOURCE_CONNECTOR, source_connector_config)
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self.verify_config(self.FILE_SOURCE_CONNECTOR, self.FILE_SOURCE_CONFIGS, configs)
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sink_connector_config = self._config_dict_from_props(sink_connector_props)
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configs = self.cc.validate_config(self.FILE_SINK_CONNECTOR, sink_connector_config)
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self.verify_config(self.FILE_SINK_CONNECTOR, self.FILE_SINK_CONFIGS, configs)
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self.logger.info("Creating connectors")
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self.cc.create_connector(source_connector_config)
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self.cc.create_connector(sink_connector_config)
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# We should see the connectors appear
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wait_until(lambda: set(self.cc.list_connectors()) == set(["local-file-source", "local-file-sink"]),
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timeout_sec=10, err_msg="Connectors that were just created did not appear in connector listing")
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# We'll only do very simple validation that the connectors and tasks really ran.
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for node in self.cc.nodes:
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node.account.ssh("echo -e -n " + repr(self.INPUTS) + " >> " + self.INPUT_FILE)
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wait_until(lambda: self.validate_output(self.INPUT_LIST), timeout_sec=120, err_msg="Data added to input file was not seen in the output file in a reasonable amount of time.")
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# Trying to create the same connector again should cause an error
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try:
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self.cc.create_connector(self._config_dict_from_props(source_connector_props))
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assert False, "creating the same connector should have caused a conflict"
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except ConnectRestError:
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pass # expected
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# Validate that we can get info about connectors
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expected_source_info = {
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'name': 'local-file-source',
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'config': self._config_dict_from_props(source_connector_props),
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'tasks': [{'connector': 'local-file-source', 'task': 0}],
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'type': 'source'
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}
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source_info = self.cc.get_connector("local-file-source")
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assert expected_source_info == source_info, "Incorrect info:" + json.dumps(source_info)
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source_config = self.cc.get_connector_config("local-file-source")
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assert expected_source_info['config'] == source_config, "Incorrect config: " + json.dumps(source_config)
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expected_sink_info = {
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'name': 'local-file-sink',
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'config': self._config_dict_from_props(sink_connector_props),
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'tasks': [{'connector': 'local-file-sink', 'task': 0}],
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'type': 'sink'
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}
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sink_info = self.cc.get_connector("local-file-sink")
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assert expected_sink_info == sink_info, "Incorrect info:" + json.dumps(sink_info)
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sink_config = self.cc.get_connector_config("local-file-sink")
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assert expected_sink_info['config'] == sink_config, "Incorrect config: " + json.dumps(sink_config)
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# Validate that we can get info about tasks. This info should definitely be available now without waiting since
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# we've already seen data appear in files.
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# TODO: It would be nice to validate a complete listing, but that doesn't make sense for the file connectors
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expected_source_task_info = [{
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'id': {'connector': 'local-file-source', 'task': 0},
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'config': {
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'task.class': 'org.apache.kafka.connect.file.FileStreamSourceTask',
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'file': self.INPUT_FILE,
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'topic': self.TOPIC,
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'batch.size': self.DEFAULT_BATCH_SIZE
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}
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}]
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source_task_info = self.cc.get_connector_tasks("local-file-source")
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assert expected_source_task_info == source_task_info, "Incorrect info:" + json.dumps(source_task_info)
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expected_sink_task_info = [{
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'id': {'connector': 'local-file-sink', 'task': 0},
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'config': {
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'task.class': 'org.apache.kafka.connect.file.FileStreamSinkTask',
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'file': self.OUTPUT_FILE,
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'topics': self.TOPIC
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}
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}]
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sink_task_info = self.cc.get_connector_tasks("local-file-sink")
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assert expected_sink_task_info == sink_task_info, "Incorrect info:" + json.dumps(sink_task_info)
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file_source_config = self._config_dict_from_props(source_connector_props)
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file_source_config['file'] = self.INPUT_FILE2
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self.cc.set_connector_config("local-file-source", file_source_config)
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# We should also be able to verify that the modified configs caused the tasks to move to the new file and pick up
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# more data.
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for node in self.cc.nodes:
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node.account.ssh("echo -e -n " + repr(self.LONER_INPUTS) + " >> " + self.INPUT_FILE2)
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wait_until(lambda: self.validate_output(self.LONGER_INPUT_LIST), timeout_sec=120, err_msg="Data added to input file was not seen in the output file in a reasonable amount of time.")
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self.cc.delete_connector("local-file-source")
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self.cc.delete_connector("local-file-sink")
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wait_until(lambda: len(self.cc.list_connectors()) == 0, timeout_sec=10, err_msg="Deleted connectors did not disappear from REST listing")
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def validate_output(self, input):
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input_set = set(input)
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# Output needs to be collected from all nodes because we can't be sure where the tasks will be scheduled.
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output_set = set(itertools.chain(*[
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[line.strip() for line in self.file_contents(node, self.OUTPUT_FILE)] for node in self.cc.nodes
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]))
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return input_set == output_set
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def file_contents(self, node, file):
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try:
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# Convert to a list here or the RemoteCommandError may be returned during a call to the generator instead of
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# immediately
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return list(node.account.ssh_capture("cat " + file))
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except RemoteCommandError:
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return []
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def _config_dict_from_props(self, connector_props):
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return dict([line.strip().split('=', 1) for line in connector_props.split('\n') if line.strip() and not line.strip().startswith('#')])
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def verify_config(self, name, config_def, configs):
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# Should have zero errors
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assert name == configs['name']
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# Should have zero errors
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assert 0 == configs['error_count']
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# Should return all configuration
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config_names = [config['definition']['name'] for config in configs['configs']]
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assert config_def == set(config_names)
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