Couchbase Bucket Cache Adapter ¶
This adapter stores the values in-memory using one (or more) Couchbase server instances. Unlike the APCu adapter, and similarly to the Memcached adapter, it is not limited to the current server's shared memory; you can store contents independent of your PHP environment. The ability to utilize a cluster of servers to provide redundancy and/or fail-over is also available.
Caution
Requirements: The Couchbase PHP extension as well as a Couchbase server
must be installed, active, and running to use this adapter. Version 2.6
or
less than 3.0 of the Couchbase PHP extension is required for this adapter.
This adapter expects a Couchbase Bucket instance to be passed as the first parameter. A namespace and default cache lifetime can optionally be passed as the second and third parameters:
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use Symfony\Component\Cache\Adapter\CouchbaseBucketAdapter;
$cache = new CouchbaseBucketAdapter(
// the client object that sets options and adds the server instance(s)
$client,
// the name of bucket
$bucket,
// a string prefixed to the keys of the items stored in this cache
$namespace,
// the default lifetime (in seconds) for cache items that do not define their
// own lifetime, with a value 0 causing items to be stored indefinitely
$defaultLifetime
);
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Configure the Connection ¶
The createConnection() helper method allows creating and configuring a Couchbase Bucket class instance using a Data Source Name (DSN) or an array of DSNs:
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use Symfony\Component\Cache\Adapter\CouchbaseBucketAdapter;
// pass a single DSN string to register a single server with the client
$client = CouchbaseBucketAdapter::createConnection(
'couchbase://localhost'
// the DSN can include config options (pass them as a query string):
// 'couchbase://localhost:11210?operationTimeout=10'
// 'couchbase://localhost:11210?operationTimeout=10&configTimeout=20'
);
// pass an array of DSN strings to register multiple servers with the client
$client = CouchbaseBucketAdapter::createConnection([
'couchbase://10.0.0.100',
'couchbase://10.0.0.101',
'couchbase://10.0.0.102',
// etc...
]);
// a single DSN can define multiple servers using the following syntax:
// host[hostname-or-IP:port] (where port is optional). Sockets must include a trailing ':'
$client = CouchbaseBucketAdapter::createConnection(
'couchbase:?host[localhost]&host[localhost:12345]'
);
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Configure the Options ¶
The createConnection()
helper method also accepts an array of options as its second argument. The
expected format is an associative array of key => value
pairs representing
option names and their respective values:
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use Symfony\Component\Cache\Adapter\CouchbaseBucketAdapter;
$client = CouchbaseBucketAdapter::createConnection(
// a DSN string or an array of DSN strings
[],
// associative array of configuration options
[
'username' => 'xxxxxx',
'password' => 'yyyyyy',
'configTimeout' => '100',
]
);
|
Available Options ¶
username
(type:string
)-
Username for connection
CouchbaseCluster
.CouchbaseCluster 接続のユーザー名。 password
(type:string
)-
Password of connection
CouchbaseCluster
.CouchbaseCluster 接続のパスワード。 operationTimeout
(type:int
, default:2500000
)-
The operation timeout (in microseconds) is the maximum amount of time the library will
wait for an operation to receive a response before invoking its callback with a failure status.
操作のタイムアウト (マイクロ秒単位) は、エラー状態でコールバックを呼び出す前に、操作が応答を受信するのをライブラリが待機する最大時間です。
configTimeout
(type:int
, default:5000000
)-
How long (in microseconds) the client will wait to obtain the initial configuration.
クライアントが初期構成を取得するまで待機する時間 (マイクロ秒単位)。
configNodeTimeout
(type:int
, default:2000000
)-
Per-node configuration timeout (in microseconds).
ノードごとの構成タイムアウト (マイクロ秒単位)。
viewTimeout
(type:int
, default:75000000
)-
The I/O timeout (in microseconds) for HTTP requests to Couchbase Views API.
Couchbase Views API への HTTP リクエストの I/O タイムアウト (マイクロ秒単位)。
httpTimeout
(type:int
, default:75000000
)-
The I/O timeout (in microseconds) for HTTP queries (management API).
HTTP クエリ (管理 API) の I/O タイムアウト (マイクロ秒単位)。
configDelay
(type:int
, default:10000
)-
Config refresh throttling
Modify the amount of time (in microseconds) before the configuration error threshold will forcefully be set to its maximum number forcing a configuration refresh.
構成更新スロットリング構成エラーしきい値が強制的に最大数に設定され、構成更新が強制されるまでの時間 (マイクロ秒単位) を変更します。
htconfigIdleTimeout
(type:int
, default:4294967295
)-
Idling/Persistence for HTTP bootstrap (in microseconds).
HTTP ブートストラップのアイドリング/永続性 (マイクロ秒単位)。
durabilityInterval
(type:int
, default:100000
)-
The time (in microseconds) the client will wait between repeated probes to a given server.
特定のサーバーへのプローブが繰り返される間にクライアントが待機する時間 (マイクロ秒単位)。
durabilityTimeout
(type:int
, default:5000000
)-
The time (in microseconds) the client will spend sending repeated probes to a given key's vBucket masters and replicas before they are deemed not to have satisfied the durability requirements.
クライアントが特定のキーの vBucket マスターとレプリカに繰り返しプローブを送信するのに費やす時間 (マイクロ秒単位)。
Tip
Reference the Couchbase Bucket extension's predefined constants documentation for additional information about the available options.