GUS 2018: Multi-master and multi-site

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 | 10:45 | Break & Networking                                                                           |
 | 11:30 | Session #3                                                                                   |
 | 12:15 | Lunch & Networking                                                                           |
-| 14:00 | Session #4                                                                                   |
+| 14:00 | [Gerrit Multi-master & multi-site: an OpenSource solution](sessions/multi-master-multi-site.md)|
 | 14:20 | Session #5                                                                                   |
 | 14:45 | Session #6                                                                                   |
 | 15:30 | Break & Networking                                                                           |
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+# Gerrit Multi-master and Multi-site: an OpenSource solution
+
+Last year Qualcomm went live with a Gerrit multi-master setup. This year
+GerritHub.io went multi-master and multi-site leveraging a series of
+extensions of the high-availability plugin on top of Gerrit 2.15.
+
+See how GerritHub.io has tackled the challenges and problems related
+to a multi-site using standard Cloud providers and services and
+OpenSource load-balancers and monitors.
+
+Multi-site is a journey and GerritHub.io is in the middle of it.
+Let's discuss our plans and see how your journey to multi-site
+can benefit from GerritForge experience:
+
+- What we have done in 2018
+- What we plan to do with the high-availability extensions
+- Sharding and multi-site
+- What's left
+- How does your multi-site plan look like?
+
+*[Luca Milanesio, Gerrit Maintainer / GerritForge Ltd](../speakers.md#lmilanesio)*