How to catch NestJS redis retry strategy error - redis

Question

I've created a NestJS redis cache module with a retry strategy.
#Module({
imports: [
CacheModule.registerAsync<RedisClientOptions>({
isGlobal: true,
imports: [ConfigModule],
useFactory: async (configService: ConfigService) => ({
store: redisStore,
host: configService.get<string>('redis.host'),
port: configService.get<number>('redis.port'),
password: configService.get<string>('redis.password'),
tls: configService.get<boolean>('redis.tls'),
retry_strategy: (options) => {
console.log({ options });
if (options.attempt > 2) {
// throw new Error('Retry attemps exhausted');
return undefined;
}
return Math.min(options.attempt * 100, 3000);
},
}),
inject: [ConfigService],
}),
],
controllers: [],
providers: [],
})
export class RedisCacheModule {}
I have also configured the AppModule to catch redis connection errors so that these can be handled gracefully not resulting in a fatal error. The caching implementation is not critical to the applications functionality.
export class AppModule {
constructor(#Inject(CACHE_MANAGER) cacheManager) {
const client = cacheManager.store.getClient();
client.on('error', (error) => {
console.log('Redis error');
console.log(error);
});
}
}
The issue I am experiencing is that when the third and final reconnection attempt fails, it causes a fatal error and the application crashes. Is there a way to catch these errors also?
Example logs:
[service] Redis error
[service] Error: getaddrinfo ENOTFOUND redis-master.redis.svc.cluster.local
[service] at GetAddrInfoReqWrap.onlookup {
[service] errno: -3008,
[service] code: 'ENOTFOUND',
[service] syscall: 'getaddrinfo',
[service] hostname: 'redis-master.redis.svc.cluster.local'
[service] }
[service] {
[service] options: {
[service] attempt: 3,
[service] error: Error: getaddrinfo ENOTFOUND redis-master.redis.svc.cluster.local
[service] at GetAddrInfoReqWrap.onlookup {
[service] errno: -3008,
[service] code: 'ENOTFOUND',
[service] syscall: 'getaddrinfo',
[service] hostname: 'redis-master.redis.svc.cluster.local'
[service] },
[service] total_retry_time: 300,
[service] times_connected: 0
[service] }
[service] }
[service] /app/node_modules/nestjs-cache-module/lib/cache-module.js
[service] throw new Error('Retry attemps exhausted');
[service] ^
[service]
[service] Error: Retry attemps exhausted
[service] at Object.retryStrategy [as retry_strategy] (/app/node_modules/nestjs-cache-module/lib/cache-module.js)
[service] at RedisClient.connection_gone (/app/node_modules/redis/index.js:554:41)
[service] at RedisClient.on_error (/app/node_modules/redis/index.js:346:10)
[service] at Socket.<anonymous> (/app/node_modules/redis/index.js:223:14)
[service] at Socket.emit (node:events:513:28)
[service] at emitErrorNT (node:internal/streams/destroy:151:8)
[service] at emitErrorCloseNT (node:internal/streams/destroy:116:3)
[service] at process.processTicksAndRejections (node:internal/process/task_queues:82:21)