From 9c446185de178ff4e98cba67347fa48cf01549a6 Mon Sep 17 00:00:00 2001 From: Michael Schurter Date: Thu, 12 Apr 2018 15:54:21 -0700 Subject: [PATCH] docs: compare old and new drain methods --- website/source/docs/upgrade/upgrade-specific.html.md | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/website/source/docs/upgrade/upgrade-specific.html.md b/website/source/docs/upgrade/upgrade-specific.html.md index 9a06024b4..726911c7d 100644 --- a/website/source/docs/upgrade/upgrade-specific.html.md +++ b/website/source/docs/upgrade/upgrade-specific.html.md @@ -69,6 +69,12 @@ service jobs with a `count > 1` the default migrate stanza will be used: } ``` +The old drain behavior made it impossible to drain multiple nodes at once +without risking service outages and lots of churn as draining allocations could +be placed on nodes that are about to be drained. Nomad 0.8's drain behavior is +intended to fix these issues and offer both job authors and cluster operators +more control over drains. + See the [`migrate` stanza documentation][migrate] and [Decommissioning Nodes guide](/guides/node-draining.html) for details.