Luke Chen created KAFKA-16552:
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Summary: Create an internal config to control InitialTaskDelayMs
in LogManager to speed up tests
Key: KAFKA-16552
URL: https://issues.apache.org/jira/browse/KAFKA-16552
Project: Kafka
Issue Type: Improvement
Reporter: Luke Chen
Assignee: Luke Chen
When startup LogManager, we'll create schedule tasks like: kafka-log-retention,
kafka-recovery-point-checkpoint threads...etc
([here|https://github.com/apache/kafka/blob/trunk/core/src/main/scala/kafka/log/LogManager.scala#L629]).
All of them have public configs to configure the interval, like
`log.retention.check.interval.ms`. But in addition to the scheduler interval,
there's a hard coded InitialTaskDelayMs (30 seconds) for all of them. That
might not be a problem in production env, since it'll make the kafka server
start up faster. But in test env, the 30 secs delay means if there are tests
verifying the behaviors like log retention, it'll take 30 secs up to complete
the tests.
To speed up tests, we should create an internal config (ex:
"log.initial.task.delay.ms") to control InitialTaskDelayMs in LogManager to
speed up tests. This is not intended to be used by normal users, just for
speeding up testing usage.
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