# Data Integrity Protection in Presto

DevFeed: [Data Integrity Protection in Presto](<https://devfeed.tech/articles/data-integrity-protection-in-presto-8641.md>)

Original publisher: [Read original article](<https://trino.io/blog/2020/06/25/data-integrity-protection.html>)

Author: Piotr Findeisen, Starburst Data

Published: 2020-06-25T00:00:00Z

Content type: article

Language: en

Sources: [Trino Blog](<https://devfeed.tech/sources/trino-blog.md>)

Topics: [data](<https://devfeed.tech/topics/data.md>), [Kubernetes](<https://devfeed.tech/topics/kubernetes.md>), [Amazon Elastic Kubernetes Service](<https://devfeed.tech/topics/amazon-elastic-kubernetes-service.md>), [releases](<https://devfeed.tech/topics/releases.md>), [Amazon EC2](<https://devfeed.tech/topics/amazon-ec2.md>), [AWS CloudFormation](<https://devfeed.tech/topics/aws-cloudformation.md>)

Tags: [aws](<https://devfeed.tech/tags/aws.md>), [benchmarks](<https://devfeed.tech/tags/benchmarks.md>), [cloud](<https://devfeed.tech/tags/cloud.md>), [cloudformation](<https://devfeed.tech/tags/cloudformation.md>), [data](<https://devfeed.tech/tags/data.md>), [enterprise](<https://devfeed.tech/tags/enterprise.md>), [java](<https://devfeed.tech/tags/java.md>), [jupyter](<https://devfeed.tech/tags/jupyter.md>), [kubernetes](<https://devfeed.tech/tags/kubernetes.md>), [pdf](<https://devfeed.tech/tags/pdf.md>), [performance](<https://devfeed.tech/tags/performance.md>), [release](<https://devfeed.tech/tags/release.md>), [releases](<https://devfeed.tech/tags/releases.md>)

## AI overview

The article investigates a serious data-integrity issue discovered during Presto performance benchmarks for the Starburst Enterprise Presto 332-e release. It describes block encoding, an unexpected decoded length, and the environment changes considered while diagnosing the problem, including Java 11 and AWS EKS-based Kubernetes clusters.

## Source excerpt

It all started on an Thursday afternoon in March, when Karol Sobczak was grilling Presto with heavy rounds of benchmarks, as we were ramping up to Starburst Enterprise Presto 332-e release. Karol discovered what seemed to be a serious regression, and turned out to be even more serious Cloud environment issue.