[GitHub] [james-project] Arsnael commented on a change in pull request #581: JAMES-3630 Group quota limit reads

[GitBox <gi...@apache.org>]

Arsnael commented on a change in pull request #581:
URL: https://github.com/apache/james-project/pull/581#discussion_r685664568



##########
File path: upgrade-instructions.md
##########
@@ -18,6 +18,23 @@ Change list:
  - [Adding the threadId to the ElasticSearch index](#adding-the-threadid-to-the-elasticsearch-index)
  - [Rework message denormalization](#rework-message-denormalization)
  - [Adding threadId column to message metadata tables](#adding-threadid-column-to-message-metadata-tables)
+ - [Restructure maximum quotas definition](#restructure-maximum-quotas-definition)
+ 
+### Restructure maximum quotas definition
+
+Date 06/08/2021
+
+JIRA: https://issues.apache.org/jira/browse/JAMES-3630
+
+Concerned product: Distributed James and
+Concerned product: Distributed James Cassandra James server
+
+We restructured maximum global quota in order to store them in a single Cassandra row. This enables to retrieve this 
+data on a single primary key read, which is important for performance when receiving many emails over SMTP.
+
+Please recreate the maximum quota after the upgrade. 

Review comment:
       By recreate you mean manually right? It's judged ok as it's just one global quota for the entire system, correct?




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