RedisCluster: Couldn't map cluster keyspace using any provided seed. Redis->connect works #1864

Diamonds0a · 2020-10-20T18:16:01Z

I have a local redis cluster running (note that an IP is not provided in CLUSTER SLOTS, is this normal?):

redis-cli -h 127.0.0.2 -p 6379 -a fa^ke^key -c
Warning: Using a password with '-a' or '-u' option on the command line interface may not be safe.
127.0.0.2:6379> CLUSTER SLOTS
1) 1) (integer) 0
   2) (integer) 16383
   3) 1) ""
      2) (integer) 6379
      3) "55a91fc49daa4477063973c1d039d6c8949c5888"
127.0.0.2:6379> cluster info
cluster_state:ok
cluster_slots_assigned:16384
cluster_slots_ok:16384
cluster_slots_pfail:0
cluster_slots_fail:0
cluster_known_nodes:1
cluster_size:1
cluster_current_epoch:0
cluster_my_epoch:0
cluster_stats_messages_sent:0
cluster_stats_messages_received:0
127.0.0.2:6379> exit

With the following PHP script:

<PRE><?php
$host = '127.0.0.2';
$port = 6379;
$hosts = ["$host:$port"];
$auth = 'fa^ke^key';
$options = []; //['stream' => ['verify_peer_name' => false, 'verify_peer' => false]];
$persist = false;
try {
    $redis = new \Redis();
    if ($persist) {
        $redis->pconnect($host, $port, 5, null, 0, 0, $options);
    } else {
        $redis->connect($host, $port, 5, null, 0, 0, $options);
    }
    $redis->auth($auth);
    echo "Single redis connection made\n";
    for ($i = 0; $i < 3; $i += 1) {
        $rand1 = rand(0, 10000000000);
        $rand2 = rand(0, 100000000000);
        $redis->set($rand1, $rand2);
        echo "Set $rand1, $rand2\n";
        $rand_return = $redis->get($rand1);
        echo "Got $rand_return\n";
    }
} catch (Throwable $e) {
    print_r($e);
    die();
}

echo "\n\n\nCluster:\n";

try {
    $obj_cluster = new \RedisCluster(null, $hosts, 1.5, 1.5, $persist, $auth, $options);
    echo "connection made\n";

    $obj_cluster->set('test', time());
    echo 'Found:' . $obj_cluster->get('test');

    for ($i = 0; $i < 3; $i += 1) {
        $obj_cluster->set(rand(0, 10000000000), rand(0, 100000000000));
    }
}
catch (Throwable $e) {
    print_r($e->getMessage());
}

I can connect to it directly using Redis->connect(). However RedisCluster() generates an error.

This is the output of the script:

Single redis connection made
Set 465840909, 21045614151
Got 21045614151
Set 1322671438, 80344850474
Got 80344850474
Set 1643062444, 23508231805
Got 23508231805



Cluster:
Couldn't map cluster keyspace using any provided seed

PHP Info:
Redis Support | enabled
Redis Version | 5.3.2RC2
Redis Sentinel Version | 0.1
Available serializers | php, json

Expected behaviour

Connecting to Redis Cluster in local environment using RedisCluster

Actual behaviour

I'm seeing this behaviour on

OS: Ubuntu 16.04.5 LTS
Redis: Redis server v=6.0.6 sha=00000000:0 malloc=jemalloc-5.1.0 bits=64 build=d463d609620685c0
PHP: 7.3
phpredis:5.3.2RC2

Steps to reproduce, backtrace or example script

I've checked

[ x ] There is no similar issue from other users
[ x ] Issue isn't fixed in develop branch

The text was updated successfully, but these errors were encountered:

Diamonds0a · 2020-10-20T20:55:20Z

I've tried using the ./test/make-cluster.sh script to make redis, and it fails in the same way:

cwstewart (dev) vagrant@cwstewart-hellosign:/opt/hellofax$ redis-cli -h 127.0.0.1 -p 7000 -c
127.0.0.1:7000> cluster info
cluster_state:ok
cluster_slots_assigned:16384
cluster_slots_ok:16384
cluster_slots_pfail:0
cluster_slots_fail:0
cluster_known_nodes:13
cluster_size:3
cluster_current_epoch:13
cluster_my_epoch:1
cluster_stats_messages_ping_sent:165
cluster_stats_messages_pong_sent:190
cluster_stats_messages_sent:355
cluster_stats_messages_ping_received:178
cluster_stats_messages_pong_received:165
cluster_stats_messages_meet_received:12
cluster_stats_messages_received:355
127.0.0.1:7000> cluster slots
1) 1) (integer) 0
   2) (integer) 5460
   3) 1) "127.0.0.1"
      2) (integer) 7000
      3) "996ed71f2abf7135971f2dfc47c0b15b15468f5d"
   4) 1) "127.0.0.1"
      2) (integer) 7007
      3) "aa54823566f63a45afa3f4c05780c855bd4c1586"
   5) 1) "127.0.0.1"
      2) (integer) 7006
      3) "aecb9f9dde33103922e505fe22e1b2d6e5f2a705"
   6) 1) "127.0.0.1"
      2) (integer) 7008
      3) "834e184be3eeb77374bec165afb4ad0e62ba7d9f"
   7) 1) "127.0.0.1"
      2) (integer) 7009
      3) "b34092d5a559206cecb192067e010a687c3d3c5a"
2) 1) (integer) 5461
   2) (integer) 10922
   3) 1) "127.0.0.1"
      2) (integer) 7001
      3) "437ba185c3a144835a88be99de0d59bd0919a4ed"
   4) 1) "127.0.0.1"
      2) (integer) 7004
      3) "8796beb94971bb43b64afef611544193c58b9f2d"
   5) 1) "127.0.0.1"
      2) (integer) 7012
      3) "b175321d24a0730b2b30e44cdcb601d8f9437ca1"
   6) 1) "127.0.0.1"
      2) (integer) 7010
      3) "7ff84abbe239846a3e05f4f65c224efeee1f9dc0"
3) 1) (integer) 10923
   2) (integer) 16383
   3) 1) "127.0.0.1"
      2) (integer) 7002
      3) "e42413e1ec9540bd516c012ee91a163ce2475750"
   4) 1) "127.0.0.1"
      2) (integer) 7005
      3) "4545b54f10e7af77ec384bbec4c5434a23f74fa4"
   5) 1) "127.0.0.1"
      2) (integer) 7003
      3) "217ae9185aea3644e20999bef2745dc7949fbf27"
   6) 1) "127.0.0.1"
      2) (integer) 7011
      3) "b2517dd17ad50b7c5b2207b3d7a6546e5e230f42"
127.0.0.1:7000>

The Script:

<PRE><?php
 $host = '127.0.0.1';
// $host = 'app.dev-hellosign.com';
$port = 7000;
$hosts = ["$host:$port"];
$auth = null; //'fa^ke^key';
$options = []; //['stream' => ['verify_peer_name' => false, 'verify_peer' => false]];
$persist = false; //isset($_GET['p']) ? (bool) $_GET['p'] : false;

echo "\n\n\nCluster:\n";

try {
    $obj_cluster = new \RedisCluster(null, $hosts, 1.5, 1.5, $persist, $auth, $options);
    echo "connection made\n";

    $obj_cluster->set('test', time());
    echo 'Found:' . $obj_cluster->get('test');

    for ($i = 0; $i < 3; $i += 1) {
        $obj_cluster->set(rand(0, 10000000000), rand(0, 100000000000));
    }
}
catch (Throwable $e) {
    print_r($e->getMessage());
}

Output:

Cluster:
Couldn't map cluster keyspace using any provided seed

Diamonds0a · 2020-10-20T21:55:51Z

I found how how to get it to work, but I still have a problem.

If I remove $options from the new \RedisCluster() call, then it will connect. However, I eventually want this to use TLS, which requires the $options array yes? Having $options be null or empty array causes errors.

michael-grunder · 2020-10-20T22:22:07Z

Hi @Diamonds0a,

I only scanned the logic quickly but I think this is a bug. That said, I believe you will be able to connect with TLS using the options array. The issue appears to be erroneously setting "ssl://" as the URL scheme if any options are passed at all.

The specific line is here:

scheme = redis_sock->stream_ctx ? "ssl" : "tcp";

When options are passed at all redis_sock->stream_ctx is non-null, even though it's not set to anything.

I'm not sure what the correct fix is but it should be pretty simple.

Edit: To put it another way, not passing SSL options to an unsecured connection should work. Passing SSL options to a TLS secured connection should work. What doesn't work is passing options to an unsecured connection.

yatsukhnenko · 2020-10-21T14:52:16Z

@michael-grunder I don't know is this a bug because if you want to use TLS you need to specify stream context options array. Empty array may be used if you don't want to change any default settings.

yatsukhnenko · 2020-10-21T15:19:51Z

I think we may allow $options to be passed as NULL

Allow `$options` to be passed as `NULL`.

yatsukhnenko · 2020-10-22T08:49:10Z

@Diamonds0a could you test 5.3.2? Issue should be fixed

Diamonds0a · 2020-10-22T16:23:18Z

Works.

Diamonds0a · 2020-10-22T16:34:28Z

FYI I think $redis->connect($host, $port, 5, null, 0, 0, $options); has the same problem. When $options is null.

yatsukhnenko · 2020-10-22T16:41:49Z

@Diamonds0a thanks

michael-grunder added the bug label Oct 20, 2020

yatsukhnenko added a commit that referenced this issue Oct 21, 2020

Issue #1864

7979a12

Allow `$options` to be passed as `NULL`.

michael-grunder pushed a commit that referenced this issue Oct 21, 2020

Issue #1864 (#1867)

72024af

Allow `$options` to be passed as `NULL`.

yatsukhnenko closed this as completed Oct 22, 2020

hulkur mentioned this issue Oct 22, 2020

[8.x] FIX: PhpRedis (v5.3.2) cluster - set default connection context to null laravel/framework#34935

Merged

driesvints mentioned this issue Nov 26, 2020

[6.x] Backport Redis context option laravel/framework#35370

Merged

ajuchacko mentioned this issue Jul 12, 2021

Couldn't map cluster keyspace using any provided seed (REDIS Cluster) laravel/framework#37991

Closed

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RedisCluster: Couldn't map cluster keyspace using any provided seed. Redis->connect works #1864

RedisCluster: Couldn't map cluster keyspace using any provided seed. Redis->connect works #1864

Diamonds0a commented Oct 20, 2020 •

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Diamonds0a commented Oct 20, 2020

Diamonds0a commented Oct 20, 2020 •

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michael-grunder commented Oct 20, 2020 •

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yatsukhnenko commented Oct 21, 2020

yatsukhnenko commented Oct 21, 2020

yatsukhnenko commented Oct 22, 2020

Diamonds0a commented Oct 22, 2020

Diamonds0a commented Oct 22, 2020

yatsukhnenko commented Oct 22, 2020

RedisCluster: Couldn't map cluster keyspace using any provided seed. Redis->connect works #1864

RedisCluster: Couldn't map cluster keyspace using any provided seed. Redis->connect works #1864

Comments

Diamonds0a commented Oct 20, 2020 • edited Loading

Expected behaviour

Actual behaviour

I'm seeing this behaviour on

Steps to reproduce, backtrace or example script

I've checked

Diamonds0a commented Oct 20, 2020

Diamonds0a commented Oct 20, 2020 • edited Loading

michael-grunder commented Oct 20, 2020 • edited Loading

yatsukhnenko commented Oct 21, 2020

yatsukhnenko commented Oct 21, 2020

yatsukhnenko commented Oct 22, 2020

Diamonds0a commented Oct 22, 2020

Diamonds0a commented Oct 22, 2020

yatsukhnenko commented Oct 22, 2020

Diamonds0a commented Oct 20, 2020 •

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Diamonds0a commented Oct 20, 2020 •

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michael-grunder commented Oct 20, 2020 •

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