The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Data placement decision of Hadoop distributed file system (HDFS) is very important for the data locality which is a primary criterion for task scheduling of MapReduce model and eventually affects the application performance. The existing HDFS’s rack-aware data placement strategy and replication scheme are work well with MapReduce framework in homogeneous Hadoop clusters, but in practice, such data...
Running data-intensive scientific workflow across multiple data centers faces massive data transfer problem which leads to low efficiency in actual workflow application for scientists. By considering data size and data dependency, we propose a k-means algorithm based initial data placement strategy that places the most related initial data sets into the same data center at workflow preparation stage...
This paper presents a novel hierarchy data placement algorithm based on data geographic scope to distribute several petabytes of spatial data among tens or hundreds of thousands of devices. Specially, it uses Max-Min algorithm to classify the devices into some classes for different devices configuration. Then we propose a hashing algorithm based on SIEVE [1] and Linear Hashing [2] to assign data between...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.