Redis Client Error: Error: All sentinels are unreachable. Retrying from scratch after 50ms. Last error: Connection is closed.

[Raman-Raje]

@luin I am getting the below issue. Even though all my sentinels are accessible and are running fine.

Version: "ioredis": "^5.3.2" Node.js v16.15.1.

My test code:

import Redis from 'ioredis';

const createRedisClient = () => {
    return new Redis({
        sentinels: [
            { host: "localhost", port: 26380 },
            { host: "localhost", port: 26381 },
            { host: "localhost", port: 26382 }
        ],
        name: "mymaster",
        password: "password",
        sentinelRetryStrategy: (times) => {
            // reconnect after
            return Math.min(times * 50, 2000);
        }
    });
}

const connectRedis = () => {
    const redisClient = createRedisClient();

    // handle events
    redisClient.on('connect', () => console.log('<:: Redis Client Connected'));
    redisClient.on('error', (err) => console.error('<:: Redis Client Error: ', err));


    return redisClient;
}

connectRedis();

Error:-

}
<:: Redis Client Error:  Error: connect ETIMEDOUT
    at Socket.<anonymous> (/Users/raman/Desktop/docker_k8/redissentinal/test/node_modules/ioredis/built/Redis.js:170:41)
    at Object.onceWrapper (node:events:641:28)
    at Socket.emit (node:events:527:28)
    at Socket._onTimeout (node:net:516:8)
    at listOnTimeout (node:internal/timers:559:17)
    at processTimers (node:internal/timers:502:7) {
  errorno: 'ETIMEDOUT',
  code: 'ETIMEDOUT',
  syscall: 'connect'
}
<:: Redis Client Error:  Error: connect ETIMEDOUT
    at Socket.<anonymous> (/Users/raman/Desktop/docker_k8/redissentinal/test/node_modules/ioredis/built/Redis.js:170:41)
    at Object.onceWrapper (node:events:641:28)
    at Socket.emit (node:events:527:28)
    at Socket._onTimeout (node:net:516:8)
    at listOnTimeout (node:internal/timers:559:17)
    at processTimers (node:internal/timers:502:7) {
  errorno: 'ETIMEDOUT',
  code: 'ETIMEDOUT',
  syscall: 'connect'
}
<:: Redis Client Error:  Error: All sentinels are unreachable. Retrying from scratch after 50ms. Last error: Connection is closed.
    at connectToNext (/Users/raman/Desktop/docker_k8/redissentinal/test/node_modules/ioredis/built/connectors/SentinelConnector/index.js:64:31)
    at connectToNext (/Users/raman/Desktop/docker_k8/redissentinal/test/node_modules/ioredis/built/connectors/SentinelConnector/index.js:117:24)
    at processTicksAndRejections (node:internal/process/task_queues:96:5)

All docker containers are up and running fine

sentinel.conf

port 26379
 
dir /tmp

sentinel resolve-hostnames yes

sentinel monitor mymaster redis-master 6379 $SENTINEL_QUORUM

sentinel auth-pass mymaster $REDIS_PASSWORD

sentinel down-after-milliseconds mymaster $SENTINEL_DOWN_AFTER

sentinel parallel-syncs mymaster 1

sentinel failover-timeout mymaster $SENTINEL_FAILOVER

sentinel deny-scripts-reconfig yes

sentinel-entrypoint.sh

#!/bin/sh

sed -i "s/\$SENTINEL_QUORUM/$SENTINEL_QUORUM/g" /redis/sentinel.conf
sed -i "s/\$REDIS_PASSWORD/$REDIS_PASSWORD/g" /redis/sentinel.conf
sed -i "s/\$SENTINEL_DOWN_AFTER/$SENTINEL_DOWN_AFTER/g" /redis/sentinel.conf
sed -i "s/\$SENTINEL_FAILOVER/$SENTINEL_FAILOVER/g" /redis/sentinel.conf

redis-server /redis/sentinel.conf --sentinel

[mahesh-av-qp]

I am also facing the same issue. Here are the debug logs

`2023-07-13T07:39:16.610Z ioredis:redis status[127.0.0.1:26379]: wait -> connecting

backend:start:dev: 2023-07-13T07:39:16.610Z ioredis:redis queue command[127.0.0.1:26379]: 0 -> sentinel([ 'get-master-addr-by-name', 'redis-queue' ])

backend:start:dev: 2023-07-13T07:39:16.610Z ioredis:redis status[127.0.0.1:26379]: connecting -> connect

backend:start:dev: 2023-07-13T07:39:16.610Z ioredis:redis status[127.0.0.1:26379]: connect -> ready

backend:start:dev: 2023-07-13T07:39:16.611Z ioredis:connection send 1 commands in offline queue

backend:start:dev: 2023-07-13T07:39:16.611Z ioredis:redis write command[127.0.0.1:26379]: 0 -> sentinel([ 'get-master-addr-by-name', 'redis-queue' ])

backend:start:dev: 2023-07-13T07:39:16.615Z ioredis:redis write command[127.0.0.1:26379]: 0 -> sentinel([ 'sentinels', 'redis-queue' ])

backend:start:dev: 2023-07-13T07:39:16.617Z ioredis:SentinelConnector Updated internal sentinels: [{"host":"127.0.0.1","port":26379}] @1

backend:start:dev: 2023-07-13T07:39:16.617Z ioredis:SentinelConnector resolved: 192.168.80.2:6379 from sentinel 127.0.0.1:26379

backend:start:dev: 2023-07-13T07:39:16.618Z ioredis:redis status[127.0.0.1:26379]: ready -> close

backend:start:dev: 2023-07-13T07:39:16.618Z ioredis:connection skip reconnecting since the connection is manually closed.

backend:start:dev: 2023-07-13T07:39:16.618Z ioredis:redis status[127.0.0.1:26379]: close -> end

backend:start:dev: 2023-07-13T07:39:26.617Z ioredis:connection error: Error: connect ETIMEDOUT

backend:start:dev: at Socket. (/Volumes/caseSensitive/cygnus/node_modules/ioredis/built/Redis.js:170:41)

backend:start:dev: at Object.onceWrapper (node:events:627:28)

backend:start:dev: at Socket.emit (node:events:513:28)

backend:start:dev: at Socket._onTimeout (node:net:565:8)

backend:start:dev: at listOnTimeout (node:internal/timers:564:17)

backend:start:dev: at processTimers (node:internal/timers:507:7) {

backend:start:dev: errorno: 'ETIMEDOUT',

backend:start:dev: code: 'ETIMEDOUT',

backend:start:dev: syscall: 'connect'

backend:start:dev: }

backend:start:dev: redis connection error!: Error: connect ETIMEDOUT

backend:start:dev: at Socket. (

node_modules/ioredis/built/Redis.js:170:41)

backend:start:dev: at Object.onceWrapper (node:events:627:28)

backend:start:dev: at Socket.emit (node:events:513:28)

backend:start:dev: at Socket._onTimeout (node:net:565:8)

backend:start:dev: at listOnTimeout (node:internal/timers:564:17)

backend:start:dev: at processTimers (node:internal/timers:507:7) {

backend:start:dev: errorno: 'ETIMEDOUT',

backend:start:dev: code: 'ETIMEDOUT',

backend:start:dev: syscall: 'connect'

backend:start:dev: }`

[silverwind]

Duplicate of https://github.com/redis/ioredis/issues/1390.