带有 laravel 5.5 的 Predis“Aggregate/RedisCluster.php:337 中的池中没有可用连接"

Predis with laravel 5.5 quot;No connections available in the pool in Aggregate/RedisCluster.php:337 quot;(带有 laravel 5.5 的 Predis“Aggregate/RedisCluster.php:337 中的池中没有可用连接)

问题描述

我已经在 Amazon ElastiCache 上为缓存设置了 redis-cluster，使用 Laravel 5.5 和 Predis 包，我收到以下错误.

PredisClientException: 在 vendor/predis/predis/src/Connection/Aggregate/RedisCluster.php:337 中的池中没有可用的连接

<块引用>

跟踪:PredisClientException: 在 vendor/predis/predis/src/Connection/Aggregate/RedisCluster.php:337 中的池中没有可用连接

堆栈跟踪:

0 vendor/predis/predis/src/Connection/Aggregate/RedisCluster.php(411):PredisConnectionAggregateRedisCluster->guessNode(153)

1 vendor/predis/predis/src/Connection/Aggregate/RedisCluster.php(388):PredisConnectionAggregateRedisCluster->getConnectionBySlot(153)

2 vendor/predis/predis/src/Connection/Aggregate/RedisCluster.php(550):PredisConnectionAggregateRedisCluster->getConnection(Object(PredisCommandStringSetExpire))

3 vendor/predis/predis/src/Connection/Aggregate/RedisCluster.php(593):PredisConnectionAggregateRedisCluster->retryCommandOnFailure(Object(PredisCommandStringSetExpire),'执行命令')

4 vendor/predis/predis/src/Client.php(331): PredisConnectionAggregateRedisCluster->executeCommand(Object(PredisCommandStringSetExpire))

5 vendor/predis/predis/src/Client.php(314): PredisClient->executeCommand(Object(PredisCommandStringSetExpire))

6 vendor/laravel/framework/src/Illuminate/Redis/Connections/Connection.php(96):PredisClient->__call('setex', Array)

7 vendor/laravel/framework/src/Illuminate/Redis/Connections/Connection.php(108):IlluminateRedisConnectionsConnection->command('setex', Array)

8 vendor/laravel/framework/src/Illuminate/Cache/RedisStore.php(93): IlluminateRedisConnectionsConnection->__call('setex', Array)

9 vendor/laravel/framework/src/Illuminate/Cache/Repository.php(195): IlluminateCacheRedisStore->put('5rr44TBjIPEgJSx...','a:1:{s:6:"_flas...', 480)

10 vendor/laravel/framework/src/Illuminate/Session/CacheBasedSessionHandler.php(66):IlluminateCacheRepository->put('5rr44TBjIPEgJSx...','a:1:{s:6:"_flas...', 480)

11 vendor/laravel/framework/src/Illuminate/Session/Store.php(128): IlluminateSessionCacheBasedSessionHandler->write('5rr44TBjIPEgJSx...','a:1:{s:6:"_flas...')

12 vendor/laravel/framework/src/Illuminate/Session/Middleware/StartSession.php(87):IlluminateSessionStore->save()

13 vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(218):IlluminateSessionMiddlewareStartSession->terminate(Object(IlluminateHttpRequest),对象(IlluminateHttpResponse))

14 vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(189):IlluminateFoundationHttpKernel->terminateMiddleware(Object(IlluminateHttpRequest),对象(IlluminateHttpResponse))

15 public/index.php(58): IlluminateFoundationHttpKernel->terminate(Object(IlluminateHttpRequest),对象(IlluminateHttpResponse))

16 {main}

我使用的技术栈:

• PHP7.0
• Laravel5.5
• 操作系统(Debian GNU/Linux 9.6 (stretch))，9.6 版

我在 config/database.php 中尝试了以下配置:

redis=>['客户' =>'predis','选项' =>['集群' =>'redis',],'集群' =>['默认' =>[['主机' =>环境('REDIS_CLUSTER_HOST'，'本地主机')，'密码' =>env('REDIS_CLUSTER_PASSWORD', null),'端口' =>环境('REDIS_CLUSTER_PORT'，6379)，'数据库' =>0,],],'缓存' =>[['主机' =>环境('REDIS_CLUSTER_HOST'，'本地主机')，'密码' =>env('REDIS_CLUSTER_PASSWORD', null),'端口' =>环境('REDIS_CLUSTER_PORT'，6379)，'数据库' =>0,],],]]

我也试过 timeout => 0|5|60 但每次我都遇到同样的错误.

任何帮助将不胜感激！

这在我们的环境中起作用:

 'redis' =>['集群' =>真的，'客户' =>'predis','选项' =>['集群' =>'redis','参数' =>['方案' =>env('REDIS_SCHEME', 'tcp'),'主机' =>环境('REDIS_HOST'，'本地主机')，'密码' =>env('REDIS_PASSWORD', null),'端口' =>环境('REDIS_PORT'，6379)，'数据库' =>0,'超时' =>15、],],'集群' =>['默认' =>['方案' =>env('REDIS_SCHEME', 'tcp'),'主机' =>环境('REDIS_HOST'，'本地主机')，'密码' =>env('REDIS_PASSWORD', null),'端口' =>环境('REDIS_PORT'，6379)，'数据库' =>0,'超时' =>15、],],],

基于此处找到的信息:https://github.com/nrk/predis/issues/480 - 但还需要复制选项中的所有默认"配置值 -> 参数组

REDIS_HOST，指向 AWS elasticache 的 redis 集群中的配置端点.

I've setup redis-cluster on Amazon ElastiCache for cache, using Laravel 5.5 and Predis package, I get the following error.

PredisClientException: No connections available in the pool in vendor/predis/predis/src/Connection/Aggregate/RedisCluster.php:337 

Trace: PredisClientException: No connections available in the pool in vendor/predis/predis/src/Connection/Aggregate/RedisCluster.php:337

Stack trace:

0 vendor/predis/predis/src/Connection/Aggregate/RedisCluster.php(411): PredisConnectionAggregateRedisCluster->guessNode(153)

1 vendor/predis/predis/src/Connection/Aggregate/RedisCluster.php(388): PredisConnectionAggregateRedisCluster->getConnectionBySlot(153)

2 vendor/predis/predis/src/Connection/Aggregate/RedisCluster.php(550): PredisConnectionAggregateRedisCluster->getConnection(Object(PredisCommandStringSetExpire))

3 vendor/predis/predis/src/Connection/Aggregate/RedisCluster.php(593): PredisConnectionAggregateRedisCluster->retryCommandOnFailure(Object(PredisCommandStringSetExpire), 'executeCommand')

4 vendor/predis/predis/src/Client.php(331): PredisConnectionAggregateRedisCluster->executeCommand(Object(PredisCommandStringSetExpire))

5 vendor/predis/predis/src/Client.php(314): PredisClient->executeCommand(Object(PredisCommandStringSetExpire))

6 vendor/laravel/framework/src/Illuminate/Redis/Connections/Connection.php(96): PredisClient->__call('setex', Array)

7 vendor/laravel/framework/src/Illuminate/Redis/Connections/Connection.php(108): IlluminateRedisConnectionsConnection->command('setex', Array)

8 vendor/laravel/framework/src/Illuminate/Cache/RedisStore.php(93): IlluminateRedisConnectionsConnection->__call('setex', Array)

9 vendor/laravel/framework/src/Illuminate/Cache/Repository.php(195): IlluminateCacheRedisStore->put('5rr44TBjIPEgJSx...', 'a:1:{s:6:"_flas...', 480)

10 vendor/laravel/framework/src/Illuminate/Session/CacheBasedSessionHandler.php(66): IlluminateCacheRepository->put('5rr44TBjIPEgJSx...', 'a:1:{s:6:"_flas...', 480)

11 vendor/laravel/framework/src/Illuminate/Session/Store.php(128): IlluminateSessionCacheBasedSessionHandler->write('5rr44TBjIPEgJSx...', 'a:1:{s:6:"_flas...')

12 vendor/laravel/framework/src/Illuminate/Session/Middleware/StartSession.php(87): IlluminateSessionStore->save()

13 vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(218): IlluminateSessionMiddlewareStartSession->terminate(Object(IlluminateHttpRequest), Object(IlluminateHttpResponse))

14 vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(189): IlluminateFoundationHttpKernel->terminateMiddleware(Object(IlluminateHttpRequest), Object(IlluminateHttpResponse))

15 public/index.php(58): IlluminateFoundationHttpKernel->terminate(Object(IlluminateHttpRequest), Object(IlluminateHttpResponse))

16 {main}

Technical stack I used:

• PHP7.0
• Laravel5.5
• OS (Debian GNU/Linux 9.6 (stretch)), Release 9.6

I tried the following configs in config/database.php:

redis=> [
'client'  => 'predis',
        'options' => [
            'cluster' => 'redis',
        ],
        'clusters' => [
            'default' => [
                [
                    'host' => env('REDIS_CLUSTER_HOST', 'localhost'),
                    'password' => env('REDIS_CLUSTER_PASSWORD', null),
                    'port' => env('REDIS_CLUSTER_PORT', 6379),
                    'database' => 0,
                ],
            ],
            'cache' => [
                [
                    'host' => env('REDIS_CLUSTER_HOST', 'localhost'),
                    'password' => env('REDIS_CLUSTER_PASSWORD', null),
                    'port' => env('REDIS_CLUSTER_PORT', 6379),
                    'database' => 0,
                ],
            ],
        ]
]

I also tried with timeout => 0|5|60 but every time I get the same error.

Any help would be highly appreciated!

This is working in in our env:

    'redis' => [
         'cluster' => true,

         'client' => 'predis',

         'options' => [
             'cluster' => 'redis',
             'parameters' => [
                 'scheme'   => env('REDIS_SCHEME', 'tcp'),
                 'host'     => env('REDIS_HOST', 'localhost'),
                 'password' => env('REDIS_PASSWORD', null),
                 'port'     => env('REDIS_PORT', 6379),
                 'database' => 0,
                 'timeout' => 15,
              ],
         ],

         'clusters' => [

             'default' => [
                 'scheme'   => env('REDIS_SCHEME', 'tcp'),
                 'host'     => env('REDIS_HOST', 'localhost'),
                 'password' => env('REDIS_PASSWORD', null),
                 'port'     => env('REDIS_PORT', 6379),
                 'database' => 0,
                 'timeout' => 15,
             ],
         ],
     ],

Based on info found here: https://github.com/nrk/predis/issues/480 - but needed to also replicate all 'default' config values in the options -> parameters group

REDIS_HOST, is pointing to the configuration endpoint in AWS elasticache's redis cluster.

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