X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/101971b92790b8461ac4c3387014fe70cb7787e5..0e9f41a15027a66c69ef351846b213b2e2075642:/doc/admin/upgrading.html.textile.liquid?ds=sidebyside

diff --git a/doc/admin/upgrading.html.textile.liquid b/doc/admin/upgrading.html.textile.liquid
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--- a/doc/admin/upgrading.html.textile.liquid
+++ b/doc/admin/upgrading.html.textile.liquid
@@ -28,6 +28,26 @@ TODO: extract this information based on git commit messages and generate changel
 <div class="releasenotes">
 </notextile>
 
+h2(#main). development main
+
+"previous: Upgrading to 2.7.0":#v2_7_0
+
+h3. Check implications of Containers.MaximumPriceFactor 1.5
+
+When scheduling a container, Arvados now considers using instance types other than the lowest-cost type consistent with the container's resource constraints. If a larger instance is already running and idle, or the cloud provider reports that the optimal instance type is not currently available, Arvados will select a larger instance type, provided the cost does not exceed 1.5x the optimal instance type cost.
+
+This will typically reduce overall latency for containers and reduce instance booting/shutdown overhead, but may increase costs depending on workload and instance availability. To avoid this behavior, configure @Containers.MaximumPriceFactor: 1.0@.
+
+h3. Synchronize keepstore and keep-balance upgrades
+
+The internal communication between keepstore and keep-balance about read-only volumes has changed. After keep-balance is upgraded, old versions of keepstore will be treated as read-only. We recommend upgrading and restarting all keepstore services first, then upgrading and restarting keep-balance.
+
+h3. Separate configs for MaxConcurrentRequests and MaxConcurrentRailsRequests
+
+The default configuration value @API.MaxConcurrentRequests@ (the number of concurrent requests that will be processed by a single instance of an arvados service process) is raised from 8 to 64.
+
+A new configuration key @API.MaxConcurrentRailsRequests@ (default 8) limits the number of concurrent requests processed by a RailsAPI service process.
+
 h2(#v2_7_0). v2.7.0 (2023-09-21)
 
 "previous: Upgrading to 2.6.3":#v2_6_3