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18874: Merge branch 'main' from arvados-workbench2.git
[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 ee7ac4e44e97aeebb860868e872f7b57270fa879..32b3bf701cf0f82ad46334ab128e1065303082f7 100644 (file)
--- a/doc/admin/upgrading.html.textile.liquid
+++ b/doc/admin/upgrading.html.textile.liquid
@@ -32,6 +32,12 @@ h2(#main). development main
 
 "previous: Upgrading to 2.7.0":#v2_7_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.