Updated Red Hat Enterprise MRG Realtime packages that fix several bugs are nowavailable for Red Hat Enterprise MRG 2.4.
Red Hat Enterprise MRG (Messaging, Realtime, and Grid) is a next-generation ITinfrastructure for enterprise computing. MRG offers increased performance,reliability, interoperability, and faster computing for enterprise customers. MRG Realtime provides the highest levels of predictability for consistentlow-latency response times to meet the needs of time sensitive workloads. MRGRealtime provides new levels of determinism by optimizing lengthy kernel codepaths to ensure that they do not become bottlenecks. This allows for betterprioritization of applications, resulting in consistent, predictable responsetimes for high-priority applications. This update provides bug fixes for the following packages: * The rt-setup package configures settings required by the Red Hat EnterpriseLinux real-time environment, such as creating the realtime group, addingrealtime user privileges to PAM (Pluggable Authentication Models), enabling theconfiguration of kdump in real time, and disabling irqbalance by default.* The rtctl package contains a set of scripts, which are used to manipulate thescheduling priorities of groups of system threads.Bug Fixes:* MRG-Realtime stores release information in a database that is used to createthe contents of the file /etc/mrg-rt-release upon boot. The rt-setup package,which manages this database, was updated with new information about theMRG-Realtime releases. (BZ#1072588)* MRG-Realtime creates a /etc/rtgroups file and a file per kernel,/etc/rtgroups-<kernel>, to have more control of default priorities per kernelversion. Having the multiple files, however, can cause confusion. To addressthis, the information contained on the manpage was enhanced and a header wasadded to every configuration file explaining which MRG version and kernel setthis file has effect. This change should make easier to understand the currentbehavior of the rtctl configuration files and make it simpler to identify theright configuration file to use. (BZ#1061597)Users of the real-time capabilities of Red Hat Enterprise MRG 2.4, which islayered on Red Hat Enterprise Linux 6, are advised to upgrade to these updatedpackages to resolve these bugs.
Before applying this update, make sure all previously-released erratarelevant to your system have been applied.This update is available via the Red Hat Network. Details on how touse the Red Hat Network to apply this update are available athttps://access.redhat.com/knowledge/articles/11258
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