What is a Time Series Database (TSBD)?  A time series database (TSDB) is designed especially for handling time series data or time-stamped data. Time series data can be collected from a range of events or metrics, but it is always across server periods of time rather than individual events.    You can use time series data…

Introduction “Copy on write” is a technique used in a wide variety of applications in computing. RDM uses this technique in a couple of areas.  Before diving into RDM, let’s take a look at the general case.   The main idea behind copy-on-write is to copy some content and then modify the copy instead of…

Some use cases require data to be stored for a limited time.  Time series is one such use case where data is keyed using a timestamp.  Measurements may be collected from sensors at a high frequency, keyed and stored, retrieved later using the key, and then analyzed.  Due to the volume, some of this data…

What is an Embedded Database? There are two main definitions of an embedded database:   Database for embedded systems-such as mobile devices or consumer electronics. The embedded database needs to have a small footprint and provide adequate performance in an environment with limited memory and CPU capabilities. Databases embedded in applications-this means the application does…

Introduction The memory allocator for RDM pre 14.2 was designed primarily for flexibility rather than speed.  In certain cases, the performance could drop dramatically.  One feature that we have dropped from this new memory allocator is the capability to allocate memory using a handle and then later free all that memory associated with the same…

What is a Relational Database Management System?  Relational database management systems (RDBMS) provide capabilities for creating and updating relational databases. RDBMS tools are typically based on structured query language (SQL), which is similar to English and is relatively easy to learn and use.   Different RDBMS systems may use different variants of SQL. Some systems provide…

  Edge computing is doing compute actions and calculations with low powered devices sitting on the edge of network connectivity.  It is bringing the compute as close as possible to the source of the data being generated and then consumed. It prevents the need for all data to be sent back up to a cloud…