Change tidb_memory_usage_alarm_ratio scope to instance (pingcap#5988)

dveeden · Jul 16, 2021 · 9300917 · 9300917
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commit 9300917
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/system-variables.md b/system-variables.md
@@ -938,7 +938,7 @@ For a system upgraded to v5.0 from an earlier version, if you have not modified
 
 ### tidb_memory_usage_alarm_ratio
 
-- Scope: SESSION
+- Scope: INSTANCE
 - Default value: `0.8`
 - TiDB triggers an alarm when the percentage of the memory it takes exceeds a certain threshold. For the detailed usage description of this feature, see [`memory-usage-alarm-ratio`](/tidb-configuration-file.md#memory-usage-alarm-ratio-new-in-v409).
 - You can set the initial value of this variable by configuring [`memory-usage-alarm-ratio`](/tidb-configuration-file.md#memory-usage-alarm-ratio-new-in-v409).