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Embedded database update supports carrier grade Linux

Jun 11, 2007 — by LinuxDevices Staff — from the LinuxDevices Archive — 2 views

McObject reports that the latest release of its in-memory real-time embedded database has been “tested compatible” with MontaVista's Linux implementation for telecommunications equipment. ExtremeDB 3.1 features an improved high-availability subsystem said to fit well with MontaVista Linux Carrier Grade Edition (CGE) 4.0.

ExtremeDB runs in memory, rather than from disk, in order to achieve “real-time” performance. It supports transactions, concurrent access, and high-level data definition language, while maintaining a code footprint as small as 50KB, according to the vendor. Additionally, a high-availability version supports local or distributed replication, with automatic fail-over.

New in the 3.1 release are:

  • Hot synchronization, said to allow replica databases to be attached without blocking updates
  • Patricia Trie index, a “longest-match” index claimed useful for some telecom applications
  • R-Tree index, geared toward spatial access methods
  • Schema evolution, or “hitless upgrade” capability

McObject first touted MontaVista CGE compatibility about three years ago. ExtremeDB has since been used in Linux-based WiMAX base stations, web acceleration appliances, call management systems, IP phone terminals, and VoIP border controllers, the vendor said.

Dan Cauchy, director of marketing at MontaVista, stated, “EXtremeDB and CGE [offer] an out-of-the-box solution for managing the growing volumes of complex data at the heart of communications systems.”


ExtremeDB 3.1 appears to be available now for MontaVista CGE 4.0. Pricing was not disclosed.

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