xk6-frostfs/scenarios/s3.js

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import datagen from 'k6/x/neofs/datagen';
import registry from 'k6/x/neofs/registry';
import s3 from 'k6/x/neofs/s3';
import { SharedArray } from 'k6/data';
import { sleep } from 'k6';
const obj_list = new SharedArray('obj_list', function () {
return JSON.parse(open(__ENV.PREGEN_JSON)).objects;
});
const bucket_list = new SharedArray('bucket_list', function () {
return JSON.parse(open(__ENV.PREGEN_JSON)).buckets;
});
const read_size = JSON.parse(open(__ENV.PREGEN_JSON)).obj_size;
// Select random S3 endpoint for current VU
const s3_endpoints = __ENV.S3_ENDPOINTS.split(',');
const s3_endpoint = s3_endpoints[Math.floor(Math.random() * s3_endpoints.length)];
const s3_client = s3.connect(`http://${s3_endpoint}`);
const registry_enabled = !!__ENV.REGISTRY_FILE;
const obj_registry = registry_enabled ? registry.open(__ENV.REGISTRY_FILE) : undefined;
const duration = __ENV.DURATION;
const delete_age = __ENV.DELETE_AGE ? parseInt(__ENV.DELETE_AGE) : undefined;
let obj_to_delete_selector = undefined;
if (registry_enabled && delete_age) {
obj_to_delete_selector = registry.getSelector(
__ENV.REGISTRY_FILE,
"obj_to_delete",
{
status: "created",
age: delete_age,
}
);
}
const generator = datagen.generator(1024 * parseInt(__ENV.WRITE_OBJ_SIZE));
const scenarios = {};
const write_vu_count = parseInt(__ENV.WRITERS || '0');
if (write_vu_count > 0) {
scenarios.write = {
executor: 'constant-vus',
vus: write_vu_count,
duration: `${duration}s`,
exec: 'obj_write',
gracefulStop: '5s',
};
}
const read_vu_count = parseInt(__ENV.READERS || '0');
if (read_vu_count > 0) {
scenarios.read = {
executor: 'constant-vus',
vus: read_vu_count,
duration: `${duration}s`,
exec: 'obj_read',
gracefulStop: '5s',
};
}
const delete_vu_count = parseInt(__ENV.DELETERS || '0');
if (delete_vu_count > 0) {
if (!obj_to_delete_selector) {
throw 'Positive DELETE worker number without a proper object selector';
}
scenarios.delete = {
executor: 'constant-vus',
vus: delete_vu_count,
duration: `${duration}s`,
exec: 'obj_delete',
gracefulStop: '5s',
};
}
export const options = {
scenarios,
setupTimeout: '5s',
};
export function setup() {
const total_vu_count = write_vu_count + read_vu_count + delete_vu_count;
console.log(`Pregenerated buckets: ${bucket_list.length}`);
console.log(`Pregenerated read object size: ${read_size}`);
console.log(`Pregenerated total objects: ${obj_list.length}`);
console.log(`Reading VUs: ${read_vu_count}`);
console.log(`Writing VUs: ${write_vu_count}`);
console.log(`Deleting VUs: ${delete_vu_count}`);
console.log(`Total VUs: ${total_vu_count}`);
}
export function teardown(data) {
if (obj_registry) {
obj_registry.close();
}
}
export function obj_write() {
if (__ENV.SLEEP_WRITE) {
sleep(__ENV.SLEEP_WRITE);
}
const key = __ENV.OBJ_NAME || uuidv4();
const bucket = bucket_list[Math.floor(Math.random() * bucket_list.length)];
const { payload, hash } = generator.genPayload(registry_enabled);
const resp = s3_client.put(bucket, key, payload);
if (!resp.success) {
console.log(resp.error);
return;
}
if (obj_registry) {
obj_registry.addObject("", "", bucket, key, hash);
}
}
export function obj_read() {
if (__ENV.SLEEP_READ) {
sleep(__ENV.SLEEP_READ);
}
const obj = obj_list[Math.floor(Math.random() * obj_list.length)];
const resp = s3_client.get(obj.bucket, obj.object);
if (!resp.success) {
console.log(resp.error);
}
}
export function obj_delete() {
if (__ENV.SLEEP_DELETE) {
sleep(__ENV.SLEEP_DELETE);
}
const obj = obj_to_delete_selector.nextObject();
if (!obj) {
// If there are no objects to delete, we reset selector to start scanning from the
// beginning of registry. Then we wait for some time until suitable object might appear
obj_to_delete_selector.reset(delete_age);
sleep(delete_age / 2);
return;
}
const resp = s3_client.delete(obj.s3_bucket, obj.s3_key);
if (!resp.success) {
console.log(`Error deleting object ${obj.id}: ${resp.error}`);
return;
}
obj_registry.deleteObject(obj.id);
}
export function uuidv4() {
return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {
let r = Math.random() * 16 | 0, v = c === 'x' ? r : (r & 0x3 | 0x8);
return v.toString(16);
});
}