libheartbeat2 software package provides Subsystem for High-Availability Linux (libraries), you can install in your Debian 8 (Jessie) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install libheartbeat2
libheartbeat2 is installed in your system.
Make ensure the libheartbeat2 package were installed using the commands given below,
$ sudo dpkg-query -l | grep libheartbeat2 *
You will get with libheartbeat2 package name, version, architecture and description in a table
| Distro | Debian 8 jessie |
| Section | Libraries |
| Package | libheartbeat2 |
| Version | 1:3.0.5+hg12629-1.2 |
| Description | Subsystem for High-Availability Linux (libraries) |
| Sub Section | libs |