Table of Contents

Overview

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Check-out lock enabled

Check-out lock disabled

Additional Information

In order to make sure that check-out lock work correctly, next requests were found in logs during load tests with check-out lock enabled:

Image Added

At the screenshot we can see that lock is being created in check-out-lock-storage and then deleted almost at the same moment. Deletion of lock happens when check-out for item is done.

Appendix

Infrastructure

PTF -environment pcp1

• 10 m6i.2xlarge EC2 instances located in US East (N. Virginia)us-east-1

• 1 database  instances, writer

  Name	API Name	Memory GIB	vCPUs	max_connections
  R6G Extra Large	db.r6g.xlarge	32 GiB	4 vCPUs	2731

  
  

• MSK ptf-kakfa-3
  
  • 4 m5.2xlarge brokers in 2 zones

  • Apache Kafka version 2.8.0

  • EBS storage volume per broker 300 GiB

  • auto.create.topics.enable=true
  • log.retention.minutes=480
  • default.replication.factor=3

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