Dengpan Yin created SAMZA-2327:
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Summary: EmbeddedTaggedRateLimiter fails to be initialized when
pass 0 as the rate limit
Key: SAMZA-2327
URL: https://issues.apache.org/jira/browse/SAMZA-2327
Project: Samza
Issue Type: Bug
Reporter: Dengpan Yin
When EmbeddedTaggedRateLimiter create a rate limiter, it will assign the rate
evenly to each task. If the user config a rate limit to be lower than the
number of task instances, EmbeddedTaggedRateLimiter will pass a 0 rate limit to
"com.google.common.util.concurrent.RateLimiter.create", which will throw
exception.
[https://github.com/apache/samza/blob/master/samza-core/src/main/java/org/apache/samza/util/EmbeddedTaggedRateLimiter.java#L118]
To fix the problem, we could pass a double value to
"com.google.common.util.concurrent.RateLimiter.create", and probably warn the
user that the rate limit is lower than the number of tasks.
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