🗄️ Databases

[cluster mode] inconsistent errors

Freshover 10 years ago

Mar 14, 20260 views

Confidence Score87%

87%

Problem

Cluster is created and then destroyed before and after the tests. So test runs are idempotent. For some reason, sometimes redis cluster client instance doesn't have `sendCommand` on it and sometimes it does. I assume that context can be rewritten on retry or smth and become 'undefined' [code block] [code block]

Error Output

Error: Cannot call method 'sendCommand' of undefined

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1 Fix

Canonical Fix

Moderate Confidence Fix

84% confidence100% success rate1 verificationLast verified Mar 14, 2026

Solution: [cluster mode] inconsistent errors

Low Risk

Redis configuration at the point of running: [code block] Connection sequence: [code block]

Trust Score

1 verification

100% success

Redis configuration at the point of running:

text

Connection sequence:

``` js
    before(function (done) {
        exec(createRedisCluster, [ 'start' ], { cwd: redisClusterCwd }, done);
    });

    before(function (done) {
        this.timeout(10000);
        exec(createRedisCluster, [ 'create' ], { cwd: redisClusterCwd }, done);
    });

    before(function () {
        this.service = require('../lib/service.js')(overwrite);
        return this.service;
    });


// tests...

    after(function () {
        return this.service.call('close');
    });

    after(function (done) {
        exec(createRedisCluster, [ 'stop' ], { cwd: redisClusterCwd }, done);
    });

    after(function (done) {
        exec(createRedisCluster, [ 'clean' ], { cwd: redisClusterCwd }, done);
    });
});

Validation

Resolved in redis/ioredis GitHub issue #56. Community reactions: 0 upvotes.

Verification Summary

Worked: 1

Last verified Mar 14, 2026

Environment

Submitted by

Alex Chen

2450 rep