adding docs for addressing the growing bifrost db issue

Signed-off-by: Vinay Satish <vinay.satish@progress.com>

docs-chef-io/content/server/ctl_chef_server.md

@@ -659,13 +659,18 @@ chef-server-ctl show-service-credentials
 
 ### cleanup-bifrost
 
-The `cleanup-bifrost` subcommand removes unused authorization objects
-from the authorization database (called bifrost). These unused objects
-can accumulate on long-running Chef Infra Servers as a result of failed object
-creation requests. For most users, the unused authorization objects do
+The `cleanup-bifrost` subcommand removes unused authorization IDs for actors and objects
+from the authorization database (called bifrost).
+
+These unused actor authorization IDs
+can accumulate on long-running Chef Infra Servers as a result of failed actor creation
+requests. For most users, the unused authorization actors do
 not substantially affect the performance of Chef Infra Server; however
-in certain situations it can be helpful to clean them up. This command
-is primarily intended for use by Chef support.
+in certain situations it can be helpful to clean them up.
+
+The unused object authorization IDs can accumulate while cookbooks are uploading.
+During the cookbook upload, Infra Server creates a sandbox atomic transaction to verify that partial cookbook content
+is not uploaded to the server. This issue is fixed in Chef Infra Server 14.16.
 
 **Syntax**
 

docs-chef-io/content/server/upgrades.md

@@ -122,6 +122,23 @@ Set the `postgresql['pg_upgrade_timeout']` attribute in [chef-server.rb]({{< rel
 
 {{</note >}}
 
+#### Upgrading to 14.16
+
+Chef Infra Server 14.16 includes a bug fix for the bifrost database. This bug may create unused authorization IDs in the bifrost database. After upgrading to Chef Infra Server 14.16, the unused authorization IDs must be manually deleted.
+
+To analyze the data that gets deleted and get an estimate of the time needed to delete the data, run:
+
+```bash
+chef-server-ctl cleanup-bifrost --estimate-only
+```
+
+To delete the unused authorization IDs from the bifrost database, run:
+
+
+```bash
+chef-server-ctl cleanup-bifrost
+```
+
 ##### Database Preparation
 
 1. Run `VACUUM FULL` on the PostgreSQL database if you don't have automatic vacuuming set up. This process will reduce the size of the database by deleting unnecessary data and speeds up the migration. The `VACUUM FULL` operation takes around 1 to 2 minutes per gigabyte of data depending on the complexity of the data, and requires free disk space at least as large as the size of your database.