msF2FS: Design and Implementation of an NVMe ZNS SSD Optimized F2FS File System

The ongoing digitalization of the world, estimated to reach a yearly data generation of 200 Zettabytes by 2025, is putting increasing pressure on system developers to provide systems capable of scaling with future needs. Of particular importance are the data storage systems, providing the means of storing and retrieving the vast amounts of data....

Real-time anomaly detection in logs using rule mining and complex event processing at scale

Log data, produced from every computer system and program, are widely used as source of valuable information to monitor and understand their behavior and their health. However, as large-scale systems generate a massive amount of log data every minute, it is impossible to detect the cause of system failure by examining manually this huge size of...

Mounting External Storage in HopsFS

A desirable feature of distributed file systems is to enable clients to mount<br/>external namespaces, allowing them to access physically remote data as if it was<br/>transparently stored in the local cluster. This feature is desirable in a variety of<br/>scenarios, such as in enterprise hybrid-cloud deployments, where some data may be stored...

Improving the Performance of the Variant Calling Workflow for DNA Sequencing

The growing DNA data volumes that originate from novel efficient DNA sequencing methods expose new challenges to computer systems used to process this genomic data. BigData technologies in the Hadoop environment, in particular Apache Spark and the Hadoop Distributed File System (HDFS), are increasingly adapted in state-of-the-art Bioinformatic...