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https://issues.apache.org/jira/browse/KAFKA-10225?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Jun Rao resolved KAFKA-10225.
-----------------------------
Fix Version/s: 2.7.0
Resolution: Fixed
merged the PR to trunk
> Increase default zk session timeout for system tests
> ----------------------------------------------------
>
> Key: KAFKA-10225
> URL: https://issues.apache.org/jira/browse/KAFKA-10225
> Project: Kafka
> Issue Type: Improvement
> Reporter: Chia-Ping Tsai
> Assignee: Chia-Ping Tsai
> Priority: Minor
> Fix For: 2.7.0
>
>
> I'm digging in the flaky system tests and then I noticed there are many flaky
> caused by following check.
> {code}
> with node.account.monitor_log(KafkaService.STDOUT_STDERR_CAPTURE) as
> monitor:
> node.account.ssh(cmd)
> # Kafka 1.0.0 and higher don't have a space between "Kafka" and
> "Server"
> monitor.wait_until("Kafka\s*Server.*started",
> timeout_sec=timeout_sec, backoff_sec=.25,
> err_msg="Kafka server didn't finish startup in
> %d seconds" % timeout_sec)
> {code}
> And the error message in broker log is shown below.
> {quote}
> kafka.zookeeper.ZooKeeperClientTimeoutException: Timed out waiting for
> connection while in state: CONNECTING
> at
> kafka.zookeeper.ZooKeeperClient.waitUntilConnected(ZooKeeperClient.scala:262)
> at kafka.zookeeper.ZooKeeperClient.<init>(ZooKeeperClient.scala:119)
> at kafka.zk.KafkaZkClient$.apply(KafkaZkClient.scala:1880)
> at kafka.server.KafkaServer.createZkClient$1(KafkaServer.scala:430)
> at kafka.server.KafkaServer.initZkClient(KafkaServer.scala:455)
> at kafka.server.KafkaServer.startup(KafkaServer.scala:227)
> at
> kafka.server.KafkaServerStartable.startup(KafkaServerStartable.scala:44)
> at kafka.Kafka$.main(Kafka.scala:82)
> at kafka.Kafka.main(Kafka.scala)
> {quote}
> I'm surprised the default timeout of zk connection in system test is only 2
> seconds as the default timeout in production is increased to 18s (see
> https://github.com/apache/kafka/commit/4bde9bb3ccaf5571be76cb96ea051dadaeeaf5c7)
> {code}
> config_property.ZOOKEEPER_CONNECTION_TIMEOUT_MS: 2000
> {code}
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