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Change tidb_memory_usage_alarm_ratio scope to instance (#5988) #5992

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Jul 16, 2021
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Change tidb_memory_usage_alarm_ratio scope to instance (#5988) #5992

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1929643
This is an automated cherry-pick of #5988
Liuxiaozhen12 Jul 16, 2021
291d651
Update system-variables.md
TomShawn Jul 16, 2021
edf5cb1
Update system-variables.md
TomShawn Jul 16, 2021
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Update system-variables.md
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@TomShawn
TomShawn authored Jul 16, 2021
commit edf5cb1baddf75ef506a606328b2d88c0c0fcd7b
1 change: 0 additions & 1 deletion system-variables.md
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Expand Up @@ -555,7 +555,6 @@ Constraint checking is always performed in place for pessimistic transactions (d
- 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).

>>>>>>> 93009172f (Change tidb_memory_usage_alarm_ratio scope to instance (#5988))
### tidb_metric_query_range_duration <span class="version-mark">New in v4.0</span>

- Scope: SESSION
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