Cassandra: a decentralized structured storage system
ACM SIGOPS Operating Systems Review
Solving big data challenges for enterprise application performance management
Proceedings of the VLDB Endowment
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Application performance monitoring (APM) is shifting towards capturing and analyzing every event that arises in an enterprise infrastructure. Current APM systems, for example, make it possible to monitor enterprise applications at the granularity of tracing each method invocation (i.e., an event). Naturally, there is great interest in monitoring these events in real-time to react to system and application failures and in storing the captured information for an extended period of time to enable detailed system analysis, data analytics, and future auditing of trends in the historic data. However, the high insertion-rates (up to millions of events per second) and the purposely limited resource, a small fraction of all enterprise resources (i.e., 1-2% of the overall system resources), dedicated to APM are the key challenges for applying current data management solutions in this context. Emerging distributed key-value stores, often positioned to operate at this scale, induce additional storage overhead when dealing with relatively small data points (e.g., method invocation events) inserted at a rate of millions per second. Thus, they are not a promising solution for such an important class of workloads given APM's highly constrained resource budget. In this paper, to address these shortcomings, we present Multi-layered, Adaptive, Distributed Event Store (MADES): a massively distributed store for collecting, querying, and storing event data at a rate of millions of events per second.