| <style> |
| table { |
| width: 100%; |
| max-width: 65em; |
| border: 1px solid #dedede; |
| margin: 15px auto; |
| border-collapse: collapse; |
| empty-cells: show; |
| } |
| table th, |
| table td { |
| height: 35px; |
| border: 1px solid #dedede; |
| padding: 0 10px; |
| } |
| table th { |
| font-weight: bold; |
| text-align: center !important; |
| background: rgba(158,188,226,0.2); |
| white-space: nowrap; |
| } |
| table tbody tr:nth-child(2n) { |
| background: rgba(158,188,226,0.12); |
| } |
| table td:nth-child(1) { |
| white-space: nowrap; |
| } |
| table tr:hover { |
| background: #efefef; |
| } |
| .table-area { |
| overflow: auto; |
| } |
| </style> |
| |
| <script type="text/javascript"> |
| [].slice.call(document.querySelectorAll('table')).forEach(function(el){ |
| var wrapper = document.createElement('div'); |
| wrapper.className = 'table-area'; |
| el.parentNode.insertBefore(wrapper, el); |
| el.parentNode.removeChild(el); |
| wrapper.appendChild(el); |
| }) |
| </script> |
| # dubbo:protocol |
| |
| Service provider protocol configuration. The corresponding class is `com.alibaba.dubbo.config.ProtocolConfig`. If you need to support multiple protocols, you could declare multiple `<dubbo:protocol>` tags, and specify the protocol via `protocol` property. |
| |
| | Attribute | Corresponding URL parameter | Type | Required | Default Value | Function | Description | Compatibility | |
| | ------------- | --------------------------- | -------------- | ----------- | ---------------------------------------- | ------------------------- | ---------------------------------------- | ------------- | |
| | id | | string | False | dubbo | Configuration association | Bean Id of the protocol, can be referenced in <dubbo:service protocol=""> The default value is equal to the value of `name` attribute while `id` is not filled. If `name` value has already existed, it will add index to it's suffix. | Above 2.0.5 | |
| | name | <protocol> | string | <b>True</b> | dubbo | Performance optimize | Protocol name | Above 2.0.5 | |
| | port | <port> | int | False | The default port of dubbo protocol is 20880, rmi protocol is 1099, http and hessian protocol are 80；It will allocate an unused port if `port` is not filled or equals `-1`. To ensure the ports scope is controllable, the port will increase based on the corresponding protocol default port after Dubbo 2.4.0+ | Service discovery | Service port | Above 2.0.5 | |
| | host | <host> | string | False | Find local IP automatically | Service discovery | -The host name of services, to specify VIP and domain, or having multiple network cards. If null, it will find local IP automatically- It's recommended to let Dubbo find local IP automatically | Above 2.0.5 | |
| | threadpool | threadpool | string | False | fixed | Performance optimize | The type of Thread Pool, fixed/cached are available | Above 2.0.5 | |
| | threads | threads | int | False | 100 | Performance optimize | The size of the services' Thread Pool(Fixed) | Above 2.0.5 | |
| | iothreads | threads | int | False | The count of CPU + 1 | Performance optimize | The size of io Thread Pool(Fixed) | Above 2.0.5 | |
| | accepts | accepts | int | False | 0 | Performance optimize | The maximum connection count of the service provider | Above 2.0.5 | |
| | payload | payload | int | False | 88388608(=8M) | Performance optimize | The length limit of request and response, unit is byte | Above 2.0.5 | |
| | codec | codec | string | False | dubbo | Performance optimize | Protocol encoding | Above 2.0.5 | |
| | serialization | serialization | string | False | The default serialization of dubbo protocol is hessian2, rmi protocol is java, http protocol is json | Performance optimize | Protocol serialization, It's used when a protocol has multiple serializations. For example, `dubbo` protocol has 4 serializations, they are `dubbo`, `hessian2`, `java` and `compactedjava`. | Above 2.0.5 | |
| | accesslog | accesslog | string/boolean | False | | Service discovery | `true` will write access log to logger. Specifying it to a log path, you can write access logs to special log file. | Above 2.0.5 | |
| | path | <path> | string | False | | Service discovery | Context path, the prefix of the service path | Above 2.0.5 | |
| | transporter | transporter | string | False | The default value of dubbo protocol is netty | Performance optimize | The server and client implements of the protocol. For example, mina and netty for dubbo protocol. You can configure server or client side separately. | Above 2.0.5 | |
| | server | server | string | False | The default value of dubbo protocol is netty, http protocol is servlet | Performance optimize | The server implement of the protocol. For example, mina and netty for dubbo ptotocol, jetty and servlet for http protocol. | Above 2.0.5 | |
| | client | client | string | False | The default value of dubbo protocol is netty | Performance optimize | The client implement of the protocol. For example, mina and netty for dubbo protocol. | Above 2.0.5 | |
| | dispatcher | dispatcher | string | False | The default value of dubbo protocol is all | Performance optimize | specify the thread model of the way to dispatching. Such as `all`, `direct`, `message`, `execution`, and `connection` for dubbo protocol. | Above 2.1.0 | |
| | queues | queues | int | False | 0 | Performance optimize | The queue size of the Thread Pool. It's recommended not to specify it in order to invoke other provides rather than queueing unless you have special requirement. | Above 2.0.5 | |
| | charset | charset | string | False | UTF-8 | Performance optimize | Serialization encoding | Above 2.0.5 | |
| | buffer | buffer | int | False | 8192 | Performance optimize | The buffer size of networking IO | Above 2.0.5 | |
| | heartbeat | heartbeat | int | False | 0 | Performance optimize | Heartbeat interval. For long connection, it's difficult to receive closing event while the physical layer is disconnected. So heartbeat is necessary to help checking the connection quality | Above 2.0.10 | |
| | telnet | telnet | string | False | | Service discovery | Supported telnet commands, use `,` to separate commands. | Above 2.0.5 | |
| | register | register | boolean | False | true | Service discovery | Whether registering the corresponding services to registry center | Above 2.0.8 | |
| | contextpath | contextpath | String | False | Default value is an empty string | Service discovery | | Above 2.0.6 | |
