IN PROGRESS

Overview

In the scope of PERF-531 - Getting issue details... STATUS it's needed to run tests to answer questions:

Can the current System can accommodate a high use case load ?
- If not PERF-525
What happened at peak times when all workflows are running at once?
Typical KPIs:
- Service CPU
- Service Memory
- DB CPU
- DB Memory
Response times
Durations of long workflows
Recommendations to improve on scaling up/out modules to accommodate peak times

Summary

tested without Data Import due to PERF-582 - Getting issue details... STATUS

The current system can accommodate an average load only without Data Import. With data import, we will have 'HTTP 500 Internal Server Error. If the issue persists, please report it to EBSCO Connect.' for several workflows in the source-storage/records/{id}/formatted requests PERF-582 - Getting issue details... STATUS , and the general response time will be longer up to 2 times for all other workflows.
Service CPU utilization did not exceed 36% even at the beginning of all processes together. Without spikes at the beginning and start of DI jobs average CPU usage was about 15%. Instance CPU Utilization did not exceed 22%.
Service memory utilization was stable, and no memory leaks were suspected during tests.
Each FYR (Fiscal close - end of FY rollover) job is consuming a lot of DB CPU (each spike here corresponds to each FYR job). Approximately DB CPU usage was up to 92%
Increasing the number of database connections to DB_MAXPOOLSIZE = 200 for mod-source-record-manager and mod-source-record-storage did not give any positive effect on 'HTTP 500 Internal Server Error. If the issue persists, please report it to EBSCO Connect.' but duration of Data Import job was decreased twice.

Recommendations & Jiras (Optional)

Jiras

PERF-582 - Getting issue details... STATUS

Test Runs & Results

Test #	# configuration	Test duration	comments
1	All workflows started at the same time. Test without Data import	1 hour	NO server errors
2	All workflows started at the same time. Test without Data import	1 hour	NO server errors
3	All workflows started at the same time. Test without Data import	1 hour	NO server errors

Test results from 1st test run (1st, 2nd and 3rd test run results are similar):

Test #	Workflow name	Total time it takes to complete workflow				Avg diff
		Avg no DI (sec) high load	95th pct no DI (sec) high load	Avg no DI (sec) normal load	95th pct no DI (sec) normal load	Avg diff
1	Checkin			1.054	1.591
2	Checkout			1.650	1.948
3	View invoices			0.763	0.913
4	Create invoices			1.174	1.370
5	Edit invoices			1.581	1.897
6	Delete invoices			0.804	0.927
7	Approving Invoices			1.453	1.940
8	View Authority records			0.289	0.381
9	View MARC tag table			0.987	1.284
10	View holdings records			1.526	1.922
11	View Bib			0.841	1.168
12	View patron records			0.566	0.883
13	Delete patron records			0.638	1.070
14	Update patron records			1.043	1.625
15	Create patron records			1.098	1.261
16	View Ledger			0.050	0.088
17	Create ledger			0.616	0.761
18	Edit ledger			0.054	0.085
19	Delete a ledger			0.046	0.080
20	Export bib "Default instances export job profile"		-	5 sec (5000 records)	-
21	Export holdings "Default holdings export job profile"		-	26 sec (5000 records)	-
22	Export authority records "Default authority export job profile"		-	3 sec (5000 records)	-
23	DI "DISC HRID match"	-	-	-	-
24	DI "DS LA edeposit records update"	-	-	-	-
25	DI "DISC New edeposit records"	-	-	-	-
26	DI "DISC New NON edeposit records"	-	-	-	-
27	View item records			1.289	1.649
28	update item records			0.998	1.250
29	delete item records			0.927	1.099
30	Monitoring Pick Slips and Requests GET /circulation/requests			0.359	0.480
31	Monitoring Pick Slips and Requests GET /circulation/pick-slips/			0.112	0.256
32	Monitoring Pick Slips and Requests			0.303	0.303
33	Users loan renewal			1.467	1.661
34	Item-level requests			0.669	0.973
35	View vendor records			0.713	1.165
36	Edit vendor records			5.199	6.190
37	Create vendor records			1.064	1.200
38	Delete vendor records			0.412	0.522
39	Create purchase orders			1.625	1.733
40	View purchase orders			1.205	1.435
41	Edit purchase orders			2.076	2.984
42	Delete purchase orders			1.432	1.830
43	Retrieving instances and holdings			0.035	0.073
44	Edit MARC tag table			3.424	4.257
45	Fiscal close - end of FY rollover		-	11 min	-
46	Blacklight: View an inventory record JMeter script			0.821	1.042
47	Blacklight: Create a Request JMeter script			1.122	1.404
48	Blacklight: Create a View Patron record JMeter script			0.073	0.110

Throughput graphs

For Test#1, Test#2 and Test#3 graphs are almost the same.

Memory Utilization

This graph represents memory usage of 3 first test runs and shows that no memory leak is suspected for all of the modules.

Service CPU Utilization

CPU usage did not exceed 36 % for all modules. We can observe spikes in CPU usage of DI modules at the beginning of the Data Import jobs. Without DI spikes average CPU usage was about 15%.

Most CPU-consuming modules:

mod-inventory - 36%
mod-authtoken -25%
mod-data-import - 16%
mod-di-converter-storage -15,6%
mod-quick-marc - 15%
mod-finance-storage - 14%
nginx-okapi - 14%
okapi - 11%
mod-tags -10,6%
others - usage less than 10%
mod-source-record-manager - up to 7%
mod-source-record-storage - up to 4%

Instance CPU Utilization

RDS CPU Utilization

Each FYR (Fiscal close - end of FY rollover) job is consuming a lot of DB CPU (each spike here corresponds to each FYR job).

Approximately DB CPU usage is up to 92%

RDS Database Connections
Test# 1 - Test# 3 - 420 connections count.

Appendix

Infrastructure

PTF -environment ncp3

9 m6i.2xlarge EC2 instances located in US East (N. Virginia)us-east-1
2 database instances, one reader, and one 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
Kafka topics partitioning: - 2 partitions for DI topics

Modules memory and CPU parameters

Modules	Version	Task Definition	Running Tasks	CPU	Memory	MemoryReservation	MaxMetaspaceSize	Xmx
mod-inventory-storage	26.0.0	1	2	1024	2208	1952	384	1440
mod-inventory	20.0.4	1	2	1024	2880	2592	512	1814
mod-tags	2.0.1	1	2	128	1024	896	128	768
mod-gobi	2.6.0	1	2	128	1024	896	128	700
mod-remote-storage	2.0.2	1	2	1024	4920	4472	512	3960
mod-invoice-storage	5.6.0	1	2	128	1024	896	128	700
edge-sip2	3.0.0	1	2	128	1024	896	128	768
mod-users-bl	7.5.0	1	2	512	1440	1152	128	922
edge-rtac	2.6.0	1	2	128	1024	896	128	768
mod-feesfines	18.2.1	1	2	128	1024	896	128	768
mod-rtac	3.5.0	1	2	128	1024	896	128	768
mod-erm-usage-harvester	4.3.0	1	2	128	1024	896	128	768
mod-search	2.0.1	1	2	400	2592	2480	1024	1440
mod-service-interaction	2.2.2	1	2	256	2048	1844	512	1290
edge-ncip	1.8.1	1	2	128	1024	896	128	768
mod-authtoken	2.13.0	1	2	512	1440	1152	128	922
mod-permissions	6.3.1	2	2	512	1684	1544	512	1024
mod-circulation-storage	16.0.0	1	2	1024	1536	1440	512	896
mod-ncip	1.13.1	1	2	128	1024	896	128	768
mod-pubsub	2.9.1	1	2	1024	1536	1440	512	922
edge-orders	2.8.1	1	2	1024	1536	1440	512	922
mod-circulation	23.5.4	1	2	1536	2880	2592	128	700
edge-caiasoft	2.0.0	1	2	128	1024	896	-	-
mod-data-export	4.7.1	1	1	1024	1024	896	128	768
mod-organizations-storage	4.5.1	1	2	128	1024	896	128	700
mod-source-record-storage	5.6.5	1	2	2048	5600	5000	512	3600
mod-copycat	1.4.0	1	2	896	1024	896	128	768
mod-bulk-operations	1.0.5	1	2	1024	3072	2600	512	1536
mod-quick-marc	3.0.0	1	1	128	2288	2176	512	1664
mod-audit	2.7.0	1	2	1024	1024	896	128	768
mod-oai-pmh	3.11.3	1	2	1024	2248	2000	512	1440
edge-connexion	1.0.6	1	2	128	1024	896	128	768
mod-kb-ebsco-java	3.13.0	1	2	128	1024	896	128	768
mod-patron	5.5.2	1	2	128	1024	896	128	768
mod-email	1.15.3	1	2	128	1024	896	128	768
mod-password-validator	3.0.0	1	2	128	1440	1298	512	768
mod-login	7.9.0	1	2	1024	1440	1298	512	768
mod-data-export-worker	3.0.12	1	2	1024	3072	2600	512	2048
mod-agreements	5.5.2	1	2	128	3096	2580	512	2048
edge-oai-pmh	2.6.1	1	2	1024	1512	1360	512	1440
mod-eusage-reports	1.3.0	1	2	128	1024	896	128	768
mod-orders-storage	13.5.0	1	2	512	1024	896	128	700
mod-notify	3.0.0	1	2	128	1024	896	128	768
mod-source-record-manager	3.6.2	1	2	2048	5600	5000	512	3600
mod-di-converter-storage	2.0.2	2	2	128	1024	896	128	768
mod-template-engine	1.18.0	1	2	128	1024	896	128	768
mod-user-import	3.7.2	1	2	128	1024	896	128	768
mod-finance-storage	8.4.1	1	2	128	1024	896	128	700
mod-users	19.1.1	1	2	128	1024	896	128	768
mod-sender	1.10.0	1	2	128	1024	896	128	768
mod-graphql	1.11.0	1	2	128	1024	896	128	768
mod-licenses	4.3.1	1	2	128	2480	2312	512	1792
mod-invoice-b	5.6.2	1	2	512	1440	1152	128	922
mod-event-config	2.5.0	1	2	128	1024	896	128	768
mod-calendar	2.4.2	1	2	128	1024	896	128	768
mod-erm-usage	4.5.2	1	2	128	1024	896	128	768
mod-patron-blocks	1.8.0	1	2	1024	1024	896	128	768
mod-data-import	2.7.1	1	1	256	2048	1844	512	1292
mod-ebsconet	2.0.0	1	2	128	1248	1024	256	700
edge-dematic	2.0.0	1	2	128	1024	896	-	-
mod-task-list	5.0.1	1	1	128	1024	896	128	768
mod-courses	1.4.7	1	2	128	1024	896	128	768
mod-inventory-update	3.0.1	1	2	128	1024	896	128	768
mod-login-saml	2.6.1	1	2	128	1024	896	128	768
mod-orders	12.6.6	1	2	1024	2048	1440	512	1024
mod-configuration	5.9.1	1	2	128	1024	896	128	768
mod-organizations	1.7.0	1	2	128	1024	896	128	700
mod-notes	5.0.1	1	2	128	1024	896	128	322
mod-finance	4.7.1	1	2	128	1024	896	128	700
mod-data-export-spring	2.0.1	1	1	256	2048	1844	256	1292
edge-patron	4.11.0	1	2	256	1024	896	128	768
okapi	5.0.1	2	3	1024	1684	1440	512	922
nginx-okapi	2022.03.02	1	2	128	1024	896	-	-
pub-okapi	2022.03.02	1	2	128	1024	896	-	768

Methodology/Approach

To test Baseline for normal NLA library usage the JMeter scripts were used.

Tested with different DI delays:

From test start
1 min delay
20 min delay
without DI

Data was gathered from 2 periods with and without data import.

DI - data import
FYR - Fiscal close - end of FY rollover

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

Master Script high load test - NLA report (without Data Import)