Jon Haddad’s Post

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Apache Cassandra Committer and Consultant

Really excited to be working with my friend and fellow committer Jordan West on a performance patch for Apache Cassandra that's already showing a MASSIVE 6x reduction in IOPS usage during compaction which makes a huge impact on EBS. In our initial testing we saw a 3x improvement to compaction throughput, just on one thread, and multiple threads will deliver an even bigger improvement. The same patch will reduce system overhead on *any* deployment, but will have the biggest impact when using disks that use quotas on IOPs. The impact is you'll be able to run WAY denser nodes on EBS for the same cost, more predictable random read performance, and we're not even finished. This same patch should deliver improvements to range scans (hello spark jobs!) and repairs. You can follow along here: https://lnkd.in/d5_hcyJQ

Improve disk access patterns during compaction and streaming

Improve disk access patterns during compaction and streaming

issues.apache.org

Julien Laurenceau

Senior Solutions Architect | Big Data | AI | Distributed Systems | Cloud | Support | Audit

7mo

so refreshing to share that... contrast with a lot of project that almost quit the performance optimization field. Performance is hard but it matters

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