drcrallen commented on issue #6478: Upgrade lz4-java to 1.5.0 URL: https://github.com/apache/incubator-druid/pull/6478#issuecomment-443272732 <img width="349" alt="screen shot 2018-11-30 at 9 06 26 am" src="https://user-images.githubusercontent.com/8213081/49303868-b46f0a00-f47f-11e8-8b2b-e2643b38f1e3.png";> Looking at just the mean topN segment scan times for non-zero reported scan times, this change seems to indicate an approximately 13% improvement in performance for 1.5.0 vs 1.3.0 in a real cluster. Pretty solid and easy upgrade.
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