Railway•4mo ago

Nestjs <> Redis Unable to connect to redis using private network url

Unable to connect my nestjs server to redis using the private network url - added 5s sleep before start and build commands - both run in v2 runtime - nestjs server runs on ipv6 using ::

Solution:

the version of redis that cache-manager-redis-store v2.0.0 uses is from 2021, likely didnt have support for ipv6 back then, so please upgrade cache-manager-redis-store to the latest version

Jump to solution

30 Replies

Percy•4mo ago

Project ID: 9820d186-43b6-43fb-bdaf-7203f784ca8a

0xArc ⚡OP•4mo ago

9820d186-43b6-43fb-bdaf-7203f784ca8a/

CacheModule.registerAsync({
      isGlobal: true,
      imports: [ConfigModule],
      inject: [ConfigService],
      useFactory: (configService: ConfigService) => ({
        store: redisStore,
        url: configService.get('REDIS_URL'),
        password: configService.get('REDIS_PASSWORD'),
        username: configService.get('REDIS_USERNAME'),
        ttl: 5,
      }),
    }),

CacheModule.registerAsync({
      isGlobal: true,
      imports: [ConfigModule],
      inject: [ConfigService],
      useFactory: (configService: ConfigService) => ({
        store: redisStore,
        url: configService.get('REDIS_URL'),
        password: configService.get('REDIS_PASSWORD'),
        username: configService.get('REDIS_USERNAME'),
        ttl: 5,
      }),
    }),

"cache-manager-redis-store": "2.0.0",

"cache-manager-redis-store": "2.0.0",

Brody•4mo ago

sleep is not needed with the v2 runtime, you can remove that are you getting the error from build or runtime logs?

0xArc ⚡OP•4mo ago

runtime

Brody•4mo ago

i assume cache-manager-redis-store uses ioredis under the hood, if so, please read - https://docs.railway.app/guides/private-networking#known-configuration-requirements-for-ipv6

0xArc ⚡OP•4mo ago

just to be sure, i just concat the private url with familiy=0?

Brody•4mo ago

append ?family=0 yes

0xArc ⚡OP•4mo ago

will try and update here

Error: getaddrinfo ENOTFOUND redis-awln.railway.internal
    at GetAddrInfoReqWrap.onlookup [as oncomplete] (node:dns:107:26)
 ELIFECYCLE  Command failed with exit code 1.

Error: getaddrinfo ENOTFOUND redis-awln.railway.internal
    at GetAddrInfoReqWrap.onlookup [as oncomplete] (node:dns:107:26)
 ELIFECYCLE  Command failed with exit code 1.

redis://[username]:[password]@redis-awln.railway.internal:6379?family=0

Brody•4mo ago

redis does not have a private domain of redis-awln.railway.internal in the linked project

Brody•4mo ago

please only ever use reference variables - https://docs.railway.app/guides/variables#referencing-another-services-variable that way you can avoid these kinds of mistakes

0xArc ⚡OP•4mo ago

oh i see, so this url is invalid?

0xArc ⚡OP•4mo ago

had referenced it from here

Brody•4mo ago

are we looking at different projects? this is a screenshot from your linked project

0xArc ⚡OP•4mo ago

Yeah copied id from browser under pr-47

Brody•4mo ago

okay i wasnt told this was pr-47

0xArc ⚡OP•4mo ago

sorry, my bad thought the project id linked to pr

Brody•4mo ago

fair assumption try settings family: 0, in the same config that you set the username

0xArc ⚡OP•4mo ago

just pushed, building now

Brody•4mo ago

lets see the updated code?

0xArc ⚡OP•4mo ago

CacheModule.registerAsync({
      isGlobal: true,
      imports: [ConfigModule],
      inject: [ConfigService],
      useFactory: (configService: ConfigService) => ({
        family: 0,
        store: redisStore,
        url: configService.get('REDIS_URL'),
        password: configService.get('REDIS_PASSWORD'),
        username: configService.get('REDIS_USERNAME'),
        ttl: 5,
      }),
    }),

CacheModule.registerAsync({
      isGlobal: true,
      imports: [ConfigModule],
      inject: [ConfigService],
      useFactory: (configService: ConfigService) => ({
        family: 0,
        store: redisStore,
        url: configService.get('REDIS_URL'),
        password: configService.get('REDIS_PASSWORD'),
        username: configService.get('REDIS_USERNAME'),
        ttl: 5,
      }),
    }),

Brody•4mo ago

is this using ioredis under the hood?

0xArc ⚡OP•4mo ago

no its not "redisStore" is from this

Brody•4mo ago

i saw your other messages, it said ioredis

0xArc ⚡OP•4mo ago

unused library replaced by this

"cache-manager": "^4",
"cache-manager-redis-store": "2.0.0",

"cache-manager": "^4",
"cache-manager-redis-store": "2.0.0",

only these are relevant libraries for using redis the cache manager redis store package is outdated, but i remember vaguely that we have it that since certain feature with nestjs was not working but let me try updating it to experiment

Solution

Brody•4mo ago

the version of redis that cache-manager-redis-store v2.0.0 uses is from 2021, likely didnt have support for ipv6 back then, so please upgrade cache-manager-redis-store to the latest version

0xArc ⚡OP•4mo ago

will try and let you know @Brody did not see any errors and server didnt crash Can i keep this thread up till I confirm by testing a few stuff around the server

Brody•4mo ago

of course

0xArc ⚡OP•4mo ago

All seems good brod-a

Brody•4mo ago

great!

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Nestjs <> Redis Unable to connect to redis using private network url