xk6-kv
This is a k6 extension using the xk6 system.
| ❗ This is a proof of concept, isn't supported by the k6 team, and may break in the future. USE AT YOUR OWN RISK! |
|---|
Build
To build a k6 binary with this extension, first ensure you have the prerequisites:
- Go toolchain
- Git
Then:
- Install
xk6:
$ go install go.k6.io/xk6/cmd/xk6@latest- Build the binary:
$ xk6 build --with github.com/dgzlopes/xk6-kv@latestExample
// script.js
import kv from 'k6/x/kv';
export const options = {
scenarios: {
generator: {
exec: 'generator',
executor: 'per-vu-iterations',
vus: 5,
},
results: {
exec: 'results',
executor: 'per-vu-iterations',
startTime: '1s',
maxDuration: '2s',
vus: 1,
},
ttl: {
exec: 'ttl',
executor: 'constant-vus',
startTime: '3s',
vus: 1,
duration: '2s',
},
},
};
const client = new kv.Client();
export function generator() {
client.set(`hello_${__VU}`, 'world');
client.setWithTTLInSecond(`ttl_${__VU}`, `ttl_${__VU}`, 5);
}
export function results() {
console.log(client.get("hello_1"));
client.delete("hello_1");
try {
var keyDeleteValue = client.get("hello_1");
console.log(typeof (keyDeleteValue));
}
catch (err) {
console.log("empty value", err);
}
var r = client.viewPrefix("hello");
for (var key in r) {
console.log(key, r[key])
}
}
export function ttl() {
try {
console.log(client.get('ttl_1'));
}
catch (err) {
console.log("empty value", err);
}
}Result output:
$ ./k6 run script.js
/\ |‾‾| /‾‾/ /‾‾/
/\ / \ | |/ / / /
/ \/ \ | ( / ‾‾\
/ \ | |\ \ | (‾) |
/ __________ \ |__| \__\ \_____/ .io
execution: local
script: example.js
output: -
scenarios: (100.00%) 3 scenarios, 7 max VUs, 10m30s max duration (incl. graceful stop):
* generator: 1 iterations for each of 5 VUs (maxDuration: 10m0s, exec: generator, gracefulStop: 30s)
* results: 1 iterations for each of 1 VUs (maxDuration: 2s, exec: results, startTime: 1s, gracefulStop: 30s)
* ttl: 1 looping VUs for 2s (exec: ttl, startTime: 3s, gracefulStop: 30s)
INFO[0001] world source=console
INFO[0001] empty value error in get value with key hello_1 source=console
INFO[0001] hello_12 world source=console
INFO[0001] hello_2 world source=console
INFO[0001] hello_7 world source=console
INFO[0001] hello_9 world source=console
INFO[0001] hello_5 world source=console
INFO[0001] hello_8 world source=console
INFO[0001] hello_4 world source=console
INFO[0001] hello_6 world source=console
INFO[0001] hello_10 world source=console
INFO[0001] hello_11 world source=console
INFO[0001] hello_13 world source=console
INFO[0001] hello_14 world source=console
INFO[0001] hello_15 world source=console
INFO[0001] hello_3 world source=console
INFO[0003] ttl_1 source=console
INFO[0005] empty value error in get value with key ttl_1 source=console
INFO[0005] empty value error in get value with key ttl_1 source=console
INFO[0005] empty value error in get value with key ttl_1 source=console
INFO[0005] empty value error in get value with key ttl_1 source=console
running (00m05.0s), 0/7 VUs, 47297 complete and 0 interrupted iterations
generator ✓ [======================================] 5 VUs 00m00.0s/10m0s 5/5 iters, 1 per VU
results ✓ [======================================] 1 VUs 0.0s/2s 1/1 iters, 1 per VU
ttl ✓ [======================================] 1 VUs 2s
data_received........: 0 B 0 B/s
data_sent............: 0 B 0 B/s
iteration_duration...: avg=36.8µs min=15.66µs med=22.64µs max=53.39ms p(90)=79.34µs p(95)=95.68µs
iterations...........: 47297 9457.107597/s
vus..................: 1 min=0 max=1
vus_max..............: 7 min=7 max=7
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