Geospatial queries in Redis and Memurai
Alexander Gugel on geospatial • June 16, 2021 • 22 min read
Redis can be used for efficiently querying geospatial data. Redis was not designed as a spatial database as it lacks built-in functionality for certain more sophisticated queries that one might be used to in more feature-rich distributions, such as PostGIS. Nonetheless, it presents a more than...
Memurai Certified Safe for DoD Networks: Delivers Redis-compatible Functionality for Military Windows Servers
Jeff Greenberg on announcements • May 11, 2021 • 2 min read
Memurai announced that version 2.x of its in-memory datastore has been certified in accordance with (IAW) AFI 17-101 for use on DoD Server Core Configuration systems connected to the Air Force Network (AFNET) and AF SIPRNet. Memurai version 2.x has also been placed on the AF Evaluated Products...
Redis Persistence Deep Dive
Alexander Gugel on persistence • March 1, 2021 • 13 min read
Both Redis and Memurai are incredibly flexible in-memory data stores that are excellent choices for a wide variety of different use cases. A key feature of these systems is that all data resides in memory. This is quite different from more traditional databases that store data on disks or SSDs....
Apache Kafka vs Redis Streams
Fernando Doglio on streams • February 9, 2021 • 10 min read
Multiple options are available for developers and architects when it comes to using stream-based components. Each solution has its own specialty and particular ideal use case. If you are looking for scalable solutions that are capable of handling massive amounts of incoming data, however, then...
SQL index on hash attributes in Redis (and Memurai)
Alexander Gugel on SQL index • January 22, 2021 • 16 min read
Have you ever tried, in Redis, to search for or filter hashes by one or more attributes, or to sort hashes by one or more attributes?
The (probably missing) feature you need is called "secondary indexing"
and I explain it here.