Add km module kafka

tests/kafkatest/services/replica_verification_tool.py

@@ -0,0 +1,93 @@
+# 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.
+
+from ducktape.services.background_thread import BackgroundThreadService
+
+from kafkatest.directory_layout.kafka_path import KafkaPathResolverMixin
+from kafkatest.services.security.security_config import SecurityConfig
+
+import re
+
+
+class ReplicaVerificationTool(KafkaPathResolverMixin, BackgroundThreadService):
+
+    logs = {
+        "producer_log": {
+            "path": "/mnt/replica_verification_tool.log",
+            "collect_default": False}
+    }
+
+    def __init__(self, context, num_nodes, kafka, topic, report_interval_ms, security_protocol="PLAINTEXT", stop_timeout_sec=30):
+        super(ReplicaVerificationTool, self).__init__(context, num_nodes)
+
+        self.kafka = kafka
+        self.topic = topic
+        self.report_interval_ms = report_interval_ms
+        self.security_protocol = security_protocol
+        self.security_config = SecurityConfig(self.context, security_protocol)
+        self.partition_lag = {}
+        self.stop_timeout_sec = stop_timeout_sec
+
+    def _worker(self, idx, node):
+        cmd = self.start_cmd(node)
+        self.logger.debug("ReplicaVerificationTool %d command: %s" % (idx, cmd))
+        self.security_config.setup_node(node)
+        for line in node.account.ssh_capture(cmd):
+            self.logger.debug("Parsing line:{}".format(line))
+
+            parsed = re.search('.*max lag is (.+?) for partition ([a-zA-Z0-9._-]+-[0-9]+) at', line)
+            if parsed:
+                lag = int(parsed.group(1))
+                topic_partition = parsed.group(2)
+                self.logger.debug("Setting max lag for {} as {}".format(topic_partition, lag))
+                self.partition_lag[topic_partition] = lag
+
+    def get_lag_for_partition(self, topic, partition):
+        """
+        Get latest lag for given topic-partition
+
+        Args:
+            topic:          a topic
+            partition:      a partition of the topic
+        """
+        topic_partition = topic + '-' + str(partition)
+        lag = self.partition_lag.get(topic_partition, -1)
+        self.logger.debug("Returning lag for {} as {}".format(topic_partition, lag))
+
+        return lag
+
+    def start_cmd(self, node):
+        cmd = self.path.script("kafka-run-class.sh", node)
+        cmd += " %s" % self.java_class_name()
+        cmd += " --broker-list %s --topic-white-list %s --time -2 --report-interval-ms %s" % (self.kafka.bootstrap_servers(self.security_protocol), self.topic, self.report_interval_ms)
+
+        cmd += " 2>> /mnt/replica_verification_tool.log | tee -a /mnt/replica_verification_tool.log &"
+        return cmd
+
+    def stop_node(self, node):
+        node.account.kill_java_processes(self.java_class_name(), clean_shutdown=True,
+                                         allow_fail=True)
+
+        stopped = self.wait_node(node, timeout_sec=self.stop_timeout_sec)
+        assert stopped, "Node %s: did not stop within the specified timeout of %s seconds" % \
+                        (str(node.account), str(self.stop_timeout_sec))
+
+    def clean_node(self, node):
+        node.account.kill_java_processes(self.java_class_name(), clean_shutdown=False,
+                                         allow_fail=True)
+        node.account.ssh("rm -rf /mnt/replica_verification_tool.log", allow_fail=False)
+
+    def java_class_name(self):
+        return "kafka.tools.ReplicaVerificationTool"