#WETTER OSTDEUTSCHLAND SOFTWARE#

The use of Hadoop brings the following advantages here:ДЄs the amount of data grows, simple and inexpensive scaling of the system by adding new compute nodes to the cluster. Tiefstwerte 15 Grad in Berlin bis 8 Grad in Ostfriesland. Ganz im Westen zum Morgen hin Aufzug hoher Wolkenfelder. Ab Mitternacht mit wenigen Ausnahmen trocken und vielfach Aufklaren. For this purpose, both the imports of the different weather models and the exports of the data updates for wetter.at use Hadoop Map-Reduce jobs to execute the creation of the current weather forecasts for all of Austria and Germany on the Hadoop cluster in parallel. Nachts im Norden, Westen und SГјden anfangs zahlreiche Wolken und teils noch Regenschauer, besonders Richtung AllgГ¤u teils auch noch gewittrig mГ¶glich. This makes it possible to retrieve worldwide weather forecasts interactively or to export current weather forecasts for the whole of Austria and Germany for the above-mentioned websites. However, these queries are not used to export data, but are used for interactive data quality control by MOWIS.ДЄcceleration and cost savings compared to legacy SQL database.Д«y switching to a Hadoop-based NoSQL solution, an additional forecast model for worldwide weather data could be introduced, as well as data imports as well as exports accelerated by a factor of seven. Furthermore, using Apache Hive, SQL access to the data was enabled, allowing flexible queries to the stored location data. An xml-based interface allows data to be retrieved by web-based services.

In addition, data already retrieved is cached to further speed up queries. The system dynamically selects the most suitable database for each forecast and combines data from different sources. This makes it possible to interactively retrieve weather forecasts worldwide up to fourteen days in advance. Current weather data from various sources, such as the results of various weather forecast models as well as measured values from weather stations, are continuously fed into this database. The central component is the NoSQL database HBase, which is based on a Hadoop cluster. The system has been continuously maintained and further developed as needed since 2011.

#WETTER OSTDEUTSCHLAND SOFTWARE#

The central data management system for these services was developed by RISC Software GmbH on behalf of MOWIS. Mobile World Information Systems GmbH (MOWIS) provides weather data services, including operating the wetter.at and websites. Reliable and accurate weather forecasts are essential for planning personal leisure activities as well as for numerous companies and organizations.

Wetter ostdeutschland