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Table of Contents
Overview

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  • Comparing kafka.m5.2xlarge against kafka.m7g.2xlarge instance type
    • Data Import durations and CI/CO response time do not differ significantly. The number of requests during 2 hour CI/CO with Data Import test stayed the same 287669 in m5 and 287155 in m7g MSK instance type.
  • Resource utilization
    • Memory utilization didn't differ a lot between two MSK clusters
    • Disk consume less resources in both (idle and CICO+DI) scenarios with m7g instance type. CPU utilization the same in idle state and from 3% to 18% less under load with m7g instance type.
    • Delta for CPU utilization shows in mod-di-converter-storage-b 20% decrease for update job and 10% decrease for mod-feesfines-b module. The most part of modules CPU utilization deltas fluctuate under 10%. 
    • Average DB CPU usage for both MSK clusters during data import is 85% during create jobs and 87& during Update jobs. Check-In/Check-Out period without DI - 15%.
    • Average connection count for both MSK clusters during data import is about 850 connections for create and update jobs with CI/CO. And 730 connections for CI/CO without data import
    • MSK instance CPU and Disk utilization remain on the same level in kafka.m7g.2xlarge against kafka.m5.2xlarge or even decreased.

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Data Import durations and CI/CO response time do not differ significantly. The number of requests during 2 hour CI/CO with Data Import test stayed the same 287669 in m5 and 287155 in m7g MSK instance type.

Job ProfileFile sizeDELTA, DIDELTA, DI+CICODELTA, CIDELTA, CO
PTF - Create 25k00:00:3400:00:150.1920.305
25k00:00:1400:00:410.0060.023
PTF - Updates Success - 65k00:00:3100:00:200.0650.133
25k00:02:0600:02:030.0280.127

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Delta for CPU utilization shows in mod-di-converter-storage-b 20% decrease for update job and 10% decrease for mod-feesfines-b module. The most part of modules CPU utilization deltas fluctuate under 10%. 

Expand
titleMSK instance: kafka.m5.2xlarge vs MSK instance: kafka.m7g.2xlarge


MSK instance: kafka.m5.2xlarge
MSK instance: kafka.m7g.2xlargeDELTA
ModuleCPU (CICO + 25k Create)CPU (CICO + 25k Update)
ModuleCPU (CICO + 25k Create)CPU (CICO + 25k Update)Delta, CreateDelta, Update
mod-inventory-b110.54145.5
mod-inventory-b115.21136.944.67-8.56
mod-quick-marc-b90.64102.38
mod-quick-marc-b95.1596.44.51-5.98
mod-di-converter-storage-b78.09121.08
mod-di-converter-storage-b81.26100.433.17-20.65
nginx-okapi64.198.19
nginx-okapi70.5888.946.48-9.25
okapi-b39.1458.73
okapi-b38.8950.55-0.25-8.18
mod-source-record-storage-b28.0644.84
mod-source-record-storage-b31.6139.133.55-5.71
mod-users-b23.4120.28
mod-users-b23.622.120.191.84
mod-inventory-storage-b20.1724.74
mod-inventory-storage-b21.3719.91.2-4.84
mod-source-record-manager-b18.919.54
mod-feesfines-b18.289.11-0.62-10.43
mod-feesfines-b17.748.11
mod-configuration-b17.610.52-0.142.41
mod-configuration-b14.5510.3
mod-source-record-manager-b17.3918.272.847.97
mod-dcb-b12.311.91
mod-authtoken-b17.0413.374.741.46
mod-authtoken-b7.6711.87
mod-dcb-b13.2312.335.560.46
mod-search-b7.326
mod-search-b7.951.830.63-4.17
mod-pubsub-b6.356.8
mod-pubsub-b6.826.490.47-0.31
mod-entities-links-b3.582.26
pub-okapi3.563.64-0.021.38
pub-okapi3.423.4
mod-circulation-storage-b3.352.7-0.07-0.7
mod-patron-b2.842.77
mod-patron-b2.722.79-0.120.02
mod-circulation-storage-b2.832.91
mod-entities-links-b2.242.23-0.59-0.68
mod-data-import-b2.041.65
mod-circulation-b1.981.8-0.060.15
mod-circulation-b1.921.6
mod-data-import-b1.761.88-0.160.28
edge-patron-b1.151.16
edge-patron-b1.131.16-0.020
mod-patron-blocks-b0.990.81
mod-patron-blocks-b0.971-0.020.19
mod-users-bl-b0.852.51
mod-users-bl-b0.680.68-0.17-1.83
pub-edge0.070.07
pub-edge0.060.06-0.01-0.01


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Appendix

Infrastructure

PTF -environment qcp1

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

  • 1 database  instance, writer

    NameMemory GIBvCPUsmax_connections

    db.r6g.xlarge

    		32 GiB4 vCPUs2731


  • MSK ptf-mobius-testing2
    • 2 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=2
  • MSK perf-921-g2
    • 2 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=2

...