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107 lines
3.7 KiB
107 lines
3.7 KiB
# 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 ducktape.services.background_thread import BackgroundThreadService |
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import json |
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class VerifiableProducer(BackgroundThreadService): |
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logs = { |
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"producer_log": { |
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"path": "/mnt/producer.log", |
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"collect_default": False} |
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} |
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def __init__(self, context, num_nodes, kafka, topic, max_messages=-1, throughput=100000): |
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super(VerifiableProducer, self).__init__(context, num_nodes) |
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self.kafka = kafka |
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self.topic = topic |
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self.max_messages = max_messages |
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self.throughput = throughput |
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self.acked_values = [] |
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self.not_acked_values = [] |
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def _worker(self, idx, node): |
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cmd = self.start_cmd |
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self.logger.debug("VerifiableProducer %d command: %s" % (idx, cmd)) |
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for line in node.account.ssh_capture(cmd): |
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line = line.strip() |
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data = self.try_parse_json(line) |
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if data is not None: |
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with self.lock: |
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if data["name"] == "producer_send_error": |
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data["node"] = idx |
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self.not_acked_values.append(int(data["value"])) |
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elif data["name"] == "producer_send_success": |
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self.acked_values.append(int(data["value"])) |
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@property |
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def start_cmd(self): |
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cmd = "/opt/kafka/bin/kafka-verifiable-producer.sh" \ |
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" --topic %s --broker-list %s" % (self.topic, self.kafka.bootstrap_servers()) |
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if self.max_messages > 0: |
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cmd += " --max-messages %s" % str(self.max_messages) |
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if self.throughput > 0: |
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cmd += " --throughput %s" % str(self.throughput) |
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cmd += " 2>> /mnt/producer.log | tee -a /mnt/producer.log &" |
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return cmd |
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@property |
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def acked(self): |
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with self.lock: |
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return self.acked_values |
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@property |
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def not_acked(self): |
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with self.lock: |
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return self.not_acked_values |
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@property |
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def num_acked(self): |
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with self.lock: |
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return len(self.acked_values) |
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@property |
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def num_not_acked(self): |
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with self.lock: |
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return len(self.not_acked_values) |
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def stop_node(self, node): |
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node.account.kill_process("VerifiableProducer", allow_fail=False) |
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# block until the corresponding thread exits |
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if len(self.worker_threads) >= self.idx(node): |
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# Need to guard this because stop is preemptively called before the worker threads are added and started |
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self.worker_threads[self.idx(node) - 1].join() |
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def clean_node(self, node): |
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node.account.ssh("rm -rf /mnt/producer.log", allow_fail=False) |
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def try_parse_json(self, string): |
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"""Try to parse a string as json. Return None if not parseable.""" |
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try: |
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record = json.loads(string) |
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return record |
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except ValueError: |
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self.logger.debug("Could not parse as json: %s" % str(string)) |
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return None
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