Heartbeat (AlexDz) Mac OS

adminJune 04 2021

Heartbeat (AlexDz) Mac OS

I was deleting old or expired certs and keys in my keychain. I don't know what this is, and if my OS needs it to funcion properly.

Heartbeat (alexdz) Mac Os 11
Heartbeat (alexdz) Mac Os X

Screensavers Planet » Screensavers Animated Screensavers. Add some life and vigor to your computer screen while you're away (or watching) with these animated screensavers that, unlike slideshow screensavers, include moving elements, from analog clocks and wood burning fireplaces to 3D simulations and animated cartoons. 【More Compatible】Bluetooth connection 3.0, compatible with latest operating systems: Windows 7 & later, Windows Phone 7 & later, iOS8 & later, Android 4.0 & later, Mac OS X & later, easily pair with your Iphone, Ipad, Smart phones, laptop or tablets. Read writing about Macos in Heartbeat. Exploring the intersection of mobile development and machine learning. Sponsored by Fritz AI. Frequently Asked Questions General What is HeartbeatRM? HeartbeatRM is a cloud-based solution providing the ability to access, monitor and manage your computers around the world, using a simple web interface. There are no servers to set up or networks to configure. Just install our agent application on any computer you wish to manage, and it FAQ Read More ».

System Version: OS X 10.11.6 (15G31)

Kernel Version: Darwin 15.6.0

Boot Volume: Macintosh HD

Boot Mode: Normal

Model Name: MacBook Pro

Model Identifier: MacBookPro12,1

Processor Name: Intel Core i5

Processor Speed: 2.7 GHz

Number of Processors: 1

Total Number of Cores: 2

L2 Cache (per Core): 256 KB

L3 Cache: 3 MB

Memory: 8 GB

Boot ROM Version: MBP121.0167.B17

SMC Version (system): 2.28f7

MacBook Pro, OS X El Capitan (10.11.3), Baught at Apple, selling on OfferUp

Posted on Jul 31, 2016 11:12 PM

Heartbeat
Stable release
Initial release	1999
Written in	C, Python
Operating system	Linux, several UNIX variants
Type	Cluster messaging layer
License	GNU General Public License v2, GNU Lesser General Public License v2.1
Website	www.linux-ha.org

The Linux-HA (High-Availability Linux) project provides a high-availability (clustering) solution for Linux, FreeBSD, OpenBSD, Solaris and Mac OS X which promotes reliability, availability, and serviceability (RAS).^[1]

The project's main software product is Heartbeat, a GPL-licensed portable cluster management program for high-availability clustering. Its most important features are:

no fixed maximum number of nodes - Heartbeat can be used to build large clusters as well as very simple ones
resource monitoring: resources can be automatically restarted or moved to another node on failure
fencing mechanism to remove failed nodes from the cluster
sophisticated policy-based resource management, resource inter-dependencies and constraints
time-based rules allow for different policies depending on time
several resource scripts (for Apache, DB2, Oracle, PostgreSQL etc.) included
GUI for configuring, controlling and monitoring resources and nodes

History[edit]

The project originated from a mailing list started in November 1997. Eventually Harald Milz wrote an odd sort of Linux-HA HOWTO. Unlike most HOWTOs, this was not about how to configure or use existing software, it was a collection of HA techniques which one could use if one were to write HA software for Linux.

Alan Robertson was inspired by this description and thought that he could perhaps write some of the software for the project to act as a sort of initial seed crystal to help jump start the project. He got this initial software running on 18 March 1998.^[2] He created the first web site for the project on 19 October 1998,^[3] and the first version of the software was released on 15 November 1998.^[4] The first production customer of the software was Rudy Pawul of ISO-NE. The ISO-NE web site went into production in the second half of 1999.

At this point, the project was limited to two nodes and very simple takeover semantics, and no resource monitoring.^[1]

This was cured with version 2 of the software, which added n-node clusters, resource monitoring, dependencies, and policies. Version 2.0.0 came out on 29 July 2005.^[5] This release represented another important milestone as it was the first version where very large contributions (in terms of code size) were made by the Linux-HA community at large. This series of releases brought the project to a level of feature parity-or-superiority with respect to commercial HA software.

After version 2.1.4, the cluster resource manager component (responsible for starting and stopping resources and monitoring resource and node failure) was split off into a separate project called Pacemaker,^[6] and the resource agents and other 'glue' infrastructure were moved to separate packages. Thus with the version 3 series, the name Heartbeat should be used for the cluster messaging layer only.^[7]

Notes[edit]

^ ^a^bAlan Robertson The Evolution of The LinuxHA project. IBM Linux Technology Center, 2010 [1]
^'Linux-HA heart beats!'. Lists.linux-ha.org. Retrieved 2016-03-04.CS1 maint: discouraged parameter (link)
^'MAC addr takeover'. Lists.linux-ha.org. 1998-10-16. Retrieved 2016-03-04.CS1 maint: discouraged parameter (link)
^'Heartbeat Software Now Available'. Archived from the original on November 16, 2005. Retrieved April 28, 2017.CS1 maint: discouraged parameter (link)
^'[Linux-HA] Heartbeat, DRBD, Named-chroot, Fedora Core 4'. Lists.linux-ha.org. Retrieved 2016-03-04.CS1 maint: discouraged parameter (link)
^'Project History'. ClusterLabs.org. Retrieved 2016-03-04.CS1 maint: discouraged parameter (link)
^'Heartbeat'. Linux-HA.org. 2010-01-25. Archived from the original on 2016-03-04. Retrieved 2016-03-04.CS1 maint: discouraged parameter (link)

References[edit]