Merge branch '19981-reuse-flex-keep-cache'

[arvados.git] / doc / admin / upgrading.html.textile.liquid

diff --git a/doc/admin/upgrading.html.textile.liquid b/doc/admin/upgrading.html.textile.liquid
index f96e75021a732c1084fdefb5e0e1934ad1ac6301..13c91803bbb9841117e60461f240ae1cb9d764bf 100644 (file)
--- a/doc/admin/upgrading.html.textile.liquid
+++ b/doc/admin/upgrading.html.textile.liquid
@@ -28,10 +28,20 @@ TODO: extract this information based on git commit messages and generate changel
 <div class="releasenotes">
 </notextile>
 
-h2(#main). development main (as of 2022-12-22)
+h2(#main). development main (as of 2023-01-27)
 
 "previous: Upgrading to 2.5.0":#v2_5_0
 
+h3. Default limit for cloud VM instances
+
+There is a new configuration entry @CloudVMs.MaxInstances@ (default 64) that limits the number of VMs the cloud dispatcher will run at a time. This may need to be adjusted to suit your anticipated workload.
+
+Using the obsolete configuration entry @MaxCloudVMs@, which was previously accepted in config files but not obeyed, will now result in a deprecation warning.
+
+h3. Slow migration on upgrade
+
+This upgrade includes a database schema update (changing an integer column in each table from 32-bit to 64-bit) that may be slow on a large installation. Expect the arvados-api-server package upgrade to take longer than usual.
+
 h2(#v2_5_0). v2.5.0 (2022-12-22)
 
 "previous: Upgrading to 2.4.4":#v2_4_4