内容适配器在运行时只检索一次数据，因此大部分的内容适配器必须周期性地运行来检索数据。
Content adapters retrieve data only once each time they are run, so most of them must be run periodically to retrieve data.
检索作业和返回结果至少要耗费两个轮询周期，并且根据节点处理作业实际花费的时间，可能会耗费更多周期。
It takes at least two polling cycles to retrieve a job and then return results, and it could take additional cycles depending on how long the job actually takes to process on the node.
Web内容的生命周期管理包括创建、发布、存储、搜索/检索、访问控制和内容集成。
The life cycle management of Web content covers creation, publication, storage, search/retrieval, access control, and content integration.
如果处理不当的话，SQLRelay将在应用程序架构中引起新的单点故障弱连接，这将消耗更多CPU周期并在数据库检索中引入延迟和错误。
If mishandled, SQL Relay creates a new single-point-of-failure weak-link in an application architecture, one that consumes extra CPU cycles and introduces delays and errors in database retrieval.
第二个文件中的剩余对象将在下一个轮询周期中进行检索。
The remaining object from the second file is retrieved on the next poll cycle.
建议使用图表建立这些周期运行的内容适配器，以便于有规则的检索到数据。
It is recommended to set up these content adapters with a program that runs them periodically so that the data is retrieved on a regular basis.
它们存储和检索数据块(受客户端或者namenode通知)，并且周期性的向namenode报告它们所存储的块列表信息。
They store and retrieve blocks when they are told to (by clients or the namenode), and they report back to the namenode periodically with lists of blocks that they are storing.
它们存储和检索数据块(受客户端或者namenode通知)，并且周期性的向namenode报告它们所存储的块列表信息。
They store and retrieve blocks when they are told to (by clients or the namenode), and they report back to the namenode periodically with lists of blocks that they are storing.
应用推荐