From 686029f52c028d4bb6426cf87a1024108ed784c2 Mon Sep 17 00:00:00 2001
From: Piotr Smaron <piotr.smaron@scylladb.com>
Date: Thu, 16 Apr 2026 10:48:03 +0200
Subject: [PATCH] audit: disable caching for the audit log table

The audit table had caching enabled by default, which provides no
value since audit data is write-heavy and rarely read back through
the cache. This wastes cache space that could be used for more
important user data.

Disable caching by setting keys and rows_per_partition to NONE and
enabled to false, consistent with get_disabled_caching_options()
and other system tables such as system.batchlog,
system.large_partitions, and CDC log tables.

Closes scylladb/scylladb#29506
---
 audit/audit_cf_storage_helper.cc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/audit/audit_cf_storage_helper.cc b/audit/audit_cf_storage_helper.cc
index 1b3e0f7718..835e2d2c1a 100644
--- a/audit/audit_cf_storage_helper.cc
+++ b/audit/audit_cf_storage_helper.cc
@@ -38,7 +38,8 @@ audit_cf_storage_helper::audit_cf_storage_helper(cql3::query_processor& qp, serv
                        "source inet, "
                        "username text, "
                        "error boolean, "
-                       "PRIMARY KEY ((date, node), event_time))",
+                       "PRIMARY KEY ((date, node), event_time))"
+                       " WITH caching = {{'keys': 'NONE', 'rows_per_partition': 'NONE', 'enabled': 'false'}}",
                        KEYSPACE_NAME, TABLE_NAME),
              fmt::format("INSERT INTO {}.{} ("
                        "date,"