Cannot use 'FLUSHDB' with redis-cluster

[s1lver]

What steps will reproduce the problem?

1. Set up Redis cluster
2. Call method $this->instance->clear()

public function clear(): bool
{
    return $this->client->flushdb() !== null;
}

What is the expected result?

Completed cleaning

What do you get instead?

I get an exception

Additional info

Q	A
Version	1.0.0
PHP version	8.0.21
Operating system	Alpine
Redis	6.2.6 - 7.0.4

[samdark]

What's the exception?

[s1lver]

What's the exception?

Exception 'Predis\NotSupportedException' with message 'Cannot use 'FLUSHDB' with redis-cluster.'

[s1lver]

I wrote a couple of tests connecting to a Redis cluster. Can I change CI using single Docker config locally and in Github Actions?

How in general are local tests being launched now?

[samdark]

Can I change CI using single Docker config locally and in Github Actions?

Isn't it possible to lauch cluster as a service in actions?

How in general are local tests being launched now?

With a local instance of PHP/Redis.

[s1lver]

Can I change CI using single Docker config locally and in Github Actions?

Isn't it possible to lauch cluster as a service in actions?

Yes it is possible

[s1lver]

@samdark
first to check I changed the CI and ran the current tests
https://github.com/yiisoft/cache-redis/runs/8004880416?check_suite_focus=true

Then I added identical tests with a connection to the cluster
https://github.com/yiisoft/cache-redis/runs/8005031578?check_suite_focus=true

[s1lver]

Maybe check the activity of the cluster like this? And if it is active, then execute another command to clear

172.20.128.3:6382> info Cluster
# Cluster
cluster_enabled:1

[s1lver]

Predis independently routes commands, when specifying Redis nodes in the cluster, to the appropriate nodes, depending on the keys that are specified in the commands.

Therefore, you can use the set and get methods to implement MGET and MSET.

Implementing something like this

$slot = $client->getConnection()->executeCommand(new RawCommand('CLUSTER KEYSLOT', [$key]));
$client->getConnection()->executeCommand(new RawCommand('CLUSTER SETSLOT', [$slot, 'IMPORTING']));
$valuesFromCache[$key] = $client->getConnection()->executeCommand(new RawCommand('GET', [$key]));
$client->getConnection()->executeCommand(new RawCommand('CLUSTER SETSLOT', [$slot, 'NODE']));

would be redundant.

You can also manually check the receipt of the key in the cluster using the redis-cli