Github user HeartSaVioR commented on the pull request: https://github.com/apache/storm/pull/1335#issuecomment-216535715 Issue is that some users report that storm-kafka 1.0.0 with 0.9 is not working properly. Please refer https://issues.apache.org/jira/browse/STORM-1755 and #1386. When we adjust the version into 0.8.x, that option becomes useless for test codes, which could incur failures which seems hard to find. But using `metadata.fetch.timeout.ms` wouldn't make any issues for Kafka 0.8 and 0.9. And I don't think storm-kafka can support Kafka same or upper than 0.10.0 clearly so no issue for using deprecated property. But this is just my 2 cents and I'd like to hear about other opinions, too.
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