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# 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
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#
# http://www.apache.org/licenses/LICENSE-2.0
#
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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, tls_version=None):
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.tls_version = tls_version
self.security_config = SecurityConfig(self.context, security_protocol, tls_version=tls_version)
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-replica-verification.sh", node)
cmd += " --broker-list %s --topics-include %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("ReplicaVerificationTool", 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("ReplicaVerificationTool", clean_shutdown=False,
allow_fail=True)
node.account.ssh("rm -rf /mnt/replica_verification_tool.log", allow_fail=False)