Spaces:
Runtime error
Runtime error
File size: 4,840 Bytes
fb38ec5 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 | import { FastifyBaseLogger } from "fastify";
import {
BaseLaunchError,
ConfigurationError,
LaunchTimeoutError,
ResourceError,
} from "../services/cdp/errors/launch-errors.js";
export interface RetryOptions {
maxAttempts: number;
baseDelayMs: number;
maxDelayMs: number;
backoffMultiplier: number;
jitterMs?: number;
}
export interface RetryResult<T> {
result: T;
attempt: number;
totalDuration: number;
}
export class RetryError extends Error {
public readonly attempts: number;
public readonly lastError: Error;
public readonly allErrors: Error[];
constructor(attempts: number, lastError: Error, allErrors: Error[]) {
super(`Failed after ${attempts} attempts. Last error: ${lastError.message}`);
this.name = "RetryError";
this.attempts = attempts;
this.lastError = lastError;
this.allErrors = allErrors;
}
}
/**
* Retry utility with exponential backoff and jitter for retryable launch errors
*/
export class RetryManager {
private logger: FastifyBaseLogger;
private defaultOptions: RetryOptions = {
maxAttempts: 3,
baseDelayMs: 500,
maxDelayMs: 5000,
backoffMultiplier: 2,
jitterMs: 250,
};
constructor(logger: FastifyBaseLogger) {
this.logger = logger;
}
/**
* Execute a function with retry logic for retryable errors
*/
async executeWithRetry<T>(
operation: () => Promise<T>,
operationName: string,
options: Partial<RetryOptions> = {},
): Promise<RetryResult<T>> {
const opts = { ...this.defaultOptions, ...options };
const errors: Error[] = [];
const startTime = Date.now();
for (let attempt = 1; attempt <= opts.maxAttempts; attempt++) {
try {
this.logger.info(
`[RetryManager] ${operationName} - Attempt ${attempt}/${opts.maxAttempts}`,
);
const result = await operation();
const totalDuration = Date.now() - startTime;
if (attempt > 1) {
this.logger.info(
`[RetryManager] ${operationName} succeeded on attempt ${attempt}/${opts.maxAttempts} after ${totalDuration}ms`,
);
}
return {
result,
attempt,
totalDuration,
};
} catch (error) {
const err = error instanceof Error ? error : new Error(String(error));
errors.push(err);
const isRetryable = this.isErrorRetryable(err);
const isLastAttempt = attempt === opts.maxAttempts;
this.logger.warn(
{
error: err.message,
isRetryable,
isLastAttempt,
errorType: err instanceof BaseLaunchError ? err.type : "unknown",
},
`[RetryManager] ${operationName} failed on attempt ${attempt}/${opts.maxAttempts}`,
);
if (!isRetryable || isLastAttempt) {
if (!isRetryable) {
this.logger.error(
`[RetryManager] ${operationName} failed with non-retryable error: ${err.message}`,
);
throw err; // Throw original error for non-retryable errors
} else {
this.logger.error(
`[RetryManager] ${operationName} failed after ${opts.maxAttempts} attempts`,
);
throw new RetryError(attempt, err, errors);
}
}
// Calculate delay with exponential backoff and jitter
const baseDelay = opts.baseDelayMs * Math.pow(opts.backoffMultiplier, attempt - 1);
const jitter = opts.jitterMs ? Math.random() * opts.jitterMs : 0;
const delay = Math.min(baseDelay + jitter, opts.maxDelayMs);
this.logger.info(
`[RetryManager] Waiting ${Math.round(delay)}ms before retry ${attempt + 1}/${
opts.maxAttempts
}`,
);
await this.sleep(delay);
}
}
// This should never be reached, but TypeScript needs it
throw new RetryError(opts.maxAttempts, errors[errors.length - 1], errors);
}
private isErrorRetryable(error: Error): boolean {
if (
error instanceof ConfigurationError ||
error instanceof ResourceError ||
error instanceof LaunchTimeoutError
) {
return false;
}
if (error instanceof BaseLaunchError) {
return error.isRetryable;
}
// For non-categorized errors, we'll be conservative and not retry.
return false;
}
private sleep(ms: number): Promise<void> {
return new Promise((resolve) => setTimeout(resolve, ms));
}
createRetryWrapper<T extends any[], R>(
method: (...args: T) => Promise<R>,
operationName: string,
options: Partial<RetryOptions> = {},
): (...args: T) => Promise<R> {
return async (...args: T): Promise<R> => {
const result = await this.executeWithRetry(() => method(...args), operationName, options);
return result.result;
};
}
}
|