Abstract: Embodiments disclosed herein are related to implementing a near-real-time stream processing system using the same distributed file system as a batch processing system. A data container and partition files are generated according to a partition window that specifies a time range that controls when data is to be included in the partition files. The data container is scanned to determine if the partition files are within a partition lifetime window that specifies a time range that controls how long the partition files are active for processing. For each partition file within the lifetime window, processing tasks are created based on an amount of data included in the partition files. The data in the partition files is accessed and the processing tasks are performed. Information about the partition files is recorded in a configuration data store.

Abstract: Embodiments disclosed herein are related to implementing a near-real-time stream processing system using the same distributed file system as a batch processing system. A data container and partition files are generated according to a partition window that specifies a time range that controls when data is to be included in the partition files. The data container is scanned to determine if the partition files are within a partition lifetime window that specifies a time range that controls how long the partition files are active for processing. For each partition file within the lifetime window, processing tasks are created based on an amount of data included in the partition files. The data in the partition files is accessed and the processing tasks are performed. Information about the partition files is recorded in a configuration data store.

Abstract: A data processing system for providing a distributed timer implements receiving a first timer message associated with a first computing device requesting creation of a first timer having a first duration and a first timer identifier; responsive to the first timer message creating a first timer, and inserting a first timer queue entry into a first timer queue associated with a first timer wait interval; receiving a plurality of second timer messages to reset the first timer; inserting a plurality of second timer queue entries into the first timer queue based on the plurality of second timer messages; and processing timer queue entries in the first timer queue responsive to the first timer wait interval having passed.