apache节俭监视器hdfs文件
问题描述:
我计划使用Apache Thrift来监视对本地更改的任何更改并将该数据推送到客户端(更改后的数据)。apache节俭监视器hdfs文件
当我检查了勤俭节约的文档林看到多个传输层,但不明白我应该使用哪一个传输层
http://thrift-tutorial.readthedocs.io/en/latest/thrift-stack.html
Tranport Layer
The transport layer is responsible for reading from and writing to the wire. Thrift supports the following:
TSocket - Uses blocking socket I/O for transport.
TFramedTransport - Sends data in frames, where each frame is preceded by a length. This transport is required when using a non-blocking server.
TFileTransport - This transport writes to a file. While this transport is not included with the Java implementation, it should be simple enough to implement.
TMemoryTransport - Uses memory for I/O. The Java implementation uses a simple ByteArrayOutputStream internally.
TZlibTransport - Performs compression using zlib. Used in conjunction with another transport. Not available in the Java implementation.
答
有两种传输方式:
- 终点运输
- 分层运输
前者是您需要(其中之一)来写入和读取数据的线路。例如,这可能是一个TSocket。
后者用于另外,在某些情况下,它们甚至组合。例如,TFramedTransport为数据添加一个特殊层,以使内存分配和I/O更高效。 zlib传输可用于压缩数据。
一个例子是:
+------------------------------------+
| Application code |
+------------------------------------+
| TBinaryProtocol |
+------------------------------------+
| TZLibTransport |
+------------------------------------+
| TFramedTransport |
+------------------------------------+
| TSocket transport |
+------------------------------------+
另外一个没有分层传输的所有:
+------------------------------------+
| Application code |
+------------------------------------+
| TBinaryProtocol |
+------------------------------------+
| TSocket transport |
+------------------------------------+
PS:你挂的不是官方文件,这是由一些三阶成立第三方人员和Apache Thrift项目对该网站的质量没有影响。
强烈推荐the forthcoming Manning book from Randy Abernethy。他是节俭承诺者,书中提供了宝贵的见解。不,我没有得到任何推荐它的东西。
这本书会带来很大的变化,非常感谢。 – user1050619
你可以把我推荐给官方文档吗?我是 – user1050619
http://thrift.apache.org – JensG