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Play with companies and drafts

curl -Ss -H 'X-Userid: c092a0ad-8148-4291-9194-6c3d12a1120a' -H 'Content-Type: application/json' -X POST -d '{"name": "Third company", "metadata": {"a": "b", "c": 1}}' --url 'http://localhost:8080/company' | jq '.'

curl -Ss --url 'http://localhost:8080/company' | jq '.'

curl -Ss --url 'http://localhost:8080/company/d776630f-9dd1-41e0-b2b7-b4077a40cb84'

curl -Ss -H 'X-Userid: c092a0ad-8148-4291-9194-6c3d12a1120a' -H 'Content-Type: application/json' -X POST --url 'http://localhost:8080/company/d776630f-9dd1-41e0-b2b7-b4077a40cb84/draft' | jq '.'

curl -Ss --url 'http://localhost:8080/company/d776630f-9dd1-41e0-b2b7-b4077a40cb84/drafts' | jq '.'

curl -Ss -H 'X-Userid: c092a0ad-8148-4291-9194-6c3d12a1120a' -H 'Content-Type: application/json' -X PUT -d '{"message": "Patch note", "company": { "name": "Third company patched 100505"}}' --url 'http://localhost:8080/company/d776630f-9dd1-41e0-b2b7-b4077a40cb84/draft/88b03065-71cd-4a6d-b717-78f779402a8b' | jq '.'

curl -Ss -H 'X-Userid: c092a0ad-8148-4291-9194-6c3d12a1120a' -H 'Content-Type: application/json' -X PUT -d '{"message": "Approve note"}' --url 'http://localhost:8080/company/d776630f-9dd1-41e0-b2b7-b4077a40cb84/draft/88b03065-71cd-4a6d-b717-78f779402a8b/approve' | jq '.'

Load testing

50000 branches

docker-compose up -d
./mvnw -DenableLoadTests=true -Dtest="name.nkonev.examples.companies.VolumeTest#fifty_thousand_branches" test

Create 7000 companies, then add a commit to every company three times

Run web app in the first terminal window

./mvnw spring-boot:run

Then create 7000 companies th another terminal

./mvnw -DenableLoadTests=true -Dtest="name.nkonev.examples.companies.VolumeTest#seven_thousand_companies" test

Then create branch for every company three times (sequentially)

./mvnw -DenableLoadTests=true -Dtest="name.nkonev.examples.companies.VolumeTest#create_draft_for_each_company" test
./mvnw -DenableLoadTests=true -Dtest="name.nkonev.examples.companies.VolumeTest#create_draft_for_each_company" test
./mvnw -DenableLoadTests=true -Dtest="name.nkonev.examples.companies.VolumeTest#create_draft_for_each_company" test

Then run every-second requests in three terminal windows in parallel

watch -n 1 curl -Ss --url 'http://localhost:8080/company'

watch -n 1 curl -Ss --url 'http://localhost:8080/company'

watch -n 1 curl -Ss --url 'http://localhost:8080/company'

Those requests turned into SQL like

CALL DOLT_CHECKOUT ('main');
SELECT `company`.`name` AS `name`, `company`.`modified_at` AS `modified_at`, `company`.`id` AS `id`, `company`.`bank_account` AS `bank_account`, `company`.`estimated_size` AS `estimated_size` FROM `company` ORDER BY `company`.`name` ASC LIMIT 0, 20

(You can uncomment JDBC logging in application.yaml)

Now we can see 20% CPU of dolt in top.

I tried to create indexes

ALTER TABLE company
    ADD INDEX company_name USING HASH (name);

ALTER TABLE company
    ADD INDEX company_name USING BTREE (name);

but it doesn't change the CPU load.

If we start creating branches again CPU of dolt will be 120%

./mvnw -DenableLoadTests=true -Dtest="name.nkonev.examples.companies.VolumeTest#create_draft_for_each_company" test