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[12.x] Redis cluster broadcaster #56581

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Merged
taylorotwell merged 2 commits into from
Aug 8, 2025
Merged

[12.x] Redis cluster broadcaster #56581

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[12.x] RedisBroadcaster for RedisCuster
vadimonus Aug 7, 2025
a98c4a5
formatting
taylorotwell Aug 8, 2025
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32 changes: 28 additions & 4 deletions src/Illuminate/Broadcasting/Broadcasters/RedisBroadcaster.php
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Original file line number Diff line number Diff line change
Expand Up @@ -4,7 +4,11 @@

use Illuminate\Broadcasting\BroadcastException;
use Illuminate\Contracts\Redis\Factory as Redis;
use Illuminate\Redis\Connections\PhpRedisClusterConnection;
use Illuminate\Redis\Connections\PredisClusterConnection;
use Illuminate\Redis\Connections\PredisConnection;
use Illuminate\Support\Arr;
use Predis\Connection\Cluster\RedisCluster;
use Predis\Connection\ConnectionException;
use RedisException;
use Symfony\Component\HttpKernel\Exception\AccessDeniedHttpException;
Expand Down Expand Up @@ -125,10 +129,30 @@ public function broadcast(array $channels, $event, array $payload = [])
]);

try {
$connection->eval(
$this->broadcastMultipleChannelsScript(),
0, $payload, ...$this->formatChannels($channels)
);
if ($connection instanceof PhpRedisClusterConnection) {
foreach ($channels as $channel) {
$connection->publish($channel, $payload);
}
} elseif ($connection instanceof PredisClusterConnection &&
$connection->client()->getConnection() instanceof RedisCluster) {
$randomClusterNodeConnection = new PredisConnection(
$connection->client()->getClientBy('slot', mt_rand(0, 16383))
);

if ($events = $connection->getEventDispatcher()) {
$randomClusterNodeConnection->setEventDispatcher($events);
}

$randomClusterNodeConnection->eval(
$this->broadcastMultipleChannelsScript(),
0, $payload, ...$this->formatChannels($channels)
);
} else {
$connection->eval(
$this->broadcastMultipleChannelsScript(),
0, $payload, ...$this->formatChannels($channels)
);
}
} catch (ConnectionException|RedisException $e) {
throw new BroadcastException(
sprintf('Redis error: %s.', $e->getMessage())
Expand Down