Scalability Improvement of Apache Impala 2.12.0 in CDH 5.15.0
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Key Takeaways
We have significantly improved Impala in CDH 5.15.0 to address some of the scalability bottlenecks in query execution. 64 concurrent streams of TPC-DS queries at 10TB scale in a 135-node cluster now run at 6x query throughput compared to previous releases. In addition to running faster, the query success rate also improved from 73% to 100%. Overall, Impala in CDH 5.15.0 provides massive improvements in throughput and reliability while reducing the resource usage significantly.
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https://blog.cloudera.com/blog/2019/01/scalability-improvement-of-apache-impala-2-12-0-in-cdh-5-15-0/
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