From a17852a5426083df48b7e9bf621b052bfb48a140 Mon Sep 17 00:00:00 2001
From: Josh <jm.carp@gmail.com>
Date: Tue, 21 Oct 2025 10:39:14 -0400
Subject: [PATCH] clickhouse: update replication config in the correct file.

As a follow-up to #9183, update the replicated_max_ratio_of_wrong_parts setting
in the relevant file. After merging the previous PR, we noticed that the change
there didn't propagate to the config file in use on the rack. This patch
applies that same update to the correct config file in smf/.
---
 smf/clickhouse/config.xml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/smf/clickhouse/config.xml b/smf/clickhouse/config.xml
index 352023300a5..b22f4667370 100644
--- a/smf/clickhouse/config.xml
+++ b/smf/clickhouse/config.xml
@@ -72,6 +72,10 @@
     </quotas>
 
     <merge_tree>
+        <!-- Disable sparse column serialization, which we expect to not need -->
         <ratio_of_defaults_for_sparse_serialization>1.0</ratio_of_defaults_for_sparse_serialization>
+        <!-- Prevent ClickHouse from setting distributed tables to read-only. -->
+        <!-- See https://github.com/oxidecomputer/omicron/issues/8595 for details. -->
+        <replicated_max_ratio_of_wrong_parts>1.0</replicated_max_ratio_of_wrong_parts>
     </merge_tree>
 </clickhouse>