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v3: registry maintenance #1146

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Merged
merged 11 commits into from
Jun 5, 2024
5 changes: 5 additions & 0 deletions .changeset/young-snails-sell.md
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---
"trigger.dev": patch
---

Increase cleanup IPC timeout
247 changes: 247 additions & 0 deletions apps/coordinator/src/backoff.ts
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type ExponentialBackoffType = "NoJitter" | "FullJitter" | "EqualJitter";

type ExponentialBackoffOptions = {
base: number;
factor: number;
min: number;
max: number;
maxRetries: number;
maxElapsed: number;
};

class StopRetrying extends Error {
constructor(message?: string) {
super(message);
this.name = "StopRetrying";
}
}

export class ExponentialBackoff {
#retries: number = 0;

#type: ExponentialBackoffType;
#base: number;
#factor: number;

#min: number;
#max: number;

#maxRetries: number;
#maxElapsed: number;

constructor(type?: ExponentialBackoffType, opts: Partial<ExponentialBackoffOptions> = {}) {
this.#type = type ?? "NoJitter";
this.#base = opts.base ?? 2;
this.#factor = opts.factor ?? 1;

this.#min = opts.min ?? -Infinity;
this.#max = opts.max ?? Infinity;

this.#maxRetries = opts.maxRetries ?? Infinity;
this.#maxElapsed = opts.maxElapsed ?? Infinity;
}

#clone() {
return new ExponentialBackoff(this.#type, {
base: this.#base,
factor: this.#factor,
min: this.#min,
max: this.#max,
maxRetries: this.#maxRetries,
maxElapsed: this.#maxElapsed,
});
}

type(type?: ExponentialBackoffType) {
if (typeof type !== "undefined") {
this.#type = type;
}
return this.#clone();
}

base(base?: number) {
if (typeof base !== "undefined") {
this.#base = base;
}
return this.#clone();
}

factor(factor?: number) {
if (typeof factor !== "undefined") {
this.#factor = factor;
}
return this.#clone();
}

min(min?: number) {
if (typeof min !== "undefined") {
this.#min = min;
}
return this.#clone();
}

max(max?: number) {
if (typeof max !== "undefined") {
this.#max = max;
}
return this.#clone();
}

maxRetries(maxRetries?: number) {
if (typeof maxRetries !== "undefined") {
this.#maxRetries = maxRetries;
}
return this.#clone();
}

maxElapsed(maxElapsed?: number) {
if (typeof maxElapsed !== "undefined") {
this.#maxElapsed = maxElapsed;
}
return this.#clone();
}

retries(retries?: number) {
if (typeof retries !== "undefined") {
if (retries > this.#maxRetries) {
console.error(
`Can't set retries ${retries} higher than maxRetries (${
this.#maxRetries
}), setting to maxRetries instead.`
);
this.#retries = this.#maxRetries;
} else {
this.#retries = retries;
}
}
return this.#clone();
}

async *retryAsync(maxRetries: number = this.#maxRetries ?? Infinity) {
let elapsed = 0;
let retry = 0;

while (retry <= maxRetries) {
const delay = this.delay(retry);
elapsed += delay;

if (elapsed > this.#maxElapsed) {
break;
}

yield {
delay: {
seconds: delay,
milliseconds: delay * 1000,
},
retry,
};

retry++;
}
}

async *[Symbol.asyncIterator]() {
yield* this.retryAsync();
}

delay(retries: number = this.#retries, jitter: boolean = true) {
if (retries > this.#maxRetries) {
console.error(
`Can't set retries ${retries} higher than maxRetries (${
this.#maxRetries
}), setting to maxRetries instead.`
);
retries = this.#maxRetries;
}

let delay = this.#factor * this.#base ** retries;

switch (this.#type) {
case "NoJitter": {
break;
}
case "FullJitter": {
if (!jitter) {
delay = 0;
break;
}

delay *= Math.random();
break;
}
case "EqualJitter": {
if (!jitter) {
delay *= 0.5;
break;
}

delay *= 0.5 * (1 + Math.random());
break;
}
default: {
throw new Error(`Unknown backoff type: ${this.#type}`);
}
}

delay = Math.min(delay, this.#max);
delay = Math.max(delay, this.#min);
delay = Math.round(delay);

return delay;
}

elapsed(retries: number = this.#retries, jitter: boolean = true) {
let elapsed = 0;

for (let i = 0; i <= retries; i++) {
elapsed += this.delay(i, jitter);
}

const total = elapsed;

let days = 0;
if (elapsed > 3600 * 24) {
days = Math.floor(elapsed / 3600 / 24);
elapsed -= days * 3600 * 24;
}

let hours = 0;
if (elapsed > 3600) {
hours = Math.floor(elapsed / 3600);
elapsed -= hours * 3600;
}

let minutes = 0;
if (elapsed > 60) {
minutes = Math.floor(elapsed / 60);
elapsed -= minutes * 60;
}

const seconds = elapsed;

return {
seconds,
minutes,
hours,
days,
total,
};
}

reset() {
this.#retries = 0;
return this;
}

next() {
this.#retries++;
return this.delay();
}

stop() {
throw new StopRetrying();
}

static StopRetrying = StopRetrying;
}
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