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Merge pull request #16515 from AnaUvarova/ana-uvarova-DOCSUP-2962-one-more-field-metric-log

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DOCSUP-2962: one more field metric log
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docs/en/operations/system-tables/asynchronous_metric_log.md
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## system.asynchronous_metric_log {#system-tables-async-log}
Contains the historical values for `system.asynchronous_metrics`, which are saved once per minute. This feature is enabled by default.
Contains the historical values for `system.asynchronous_metrics`, which are saved once per minute. Enabled by default.
Columns:
@ -33,7 +33,7 @@ SELECT * FROM system.asynchronous_metric_log LIMIT 10
**See Also**
- [system.asynchronous_metrics](../system-tables/asynchronous_metrics.md) — Contains metrics that are calculated periodically in the background.
- [system.asynchronous_metrics](../system-tables/asynchronous_metrics.md) — Contains metrics, calculated periodically in the background.
- [system.metric_log](../system-tables/metric_log.md) — Contains history of metrics values from tables `system.metrics` and `system.events`, periodically flushed to disk.
[Original article](https://clickhouse.tech/docs/en/operations/system_tables/asynchronous_metric_log) <!--hide-->

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docs/en/operations/system-tables/metric_log.md
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# system.metric_log {#system_tables-metric_log}
Contains history of metrics values from tables `system.metrics` and `system.events`, periodically flushed to disk.
To turn on metrics history collection on `system.metric_log`, create `/etc/clickhouse-server/config.d/metric_log.xml` with following content:
``` xml
@ -14,6 +15,11 @@ To turn on metrics history collection on `system.metric_log`, create `/etc/click
</yandex>
```
Columns:
- `event_date` ([Date](../../sql-reference/data-types/date.md)) — Event date.
- `event_time` ([DateTime](../../sql-reference/data-types/datetime.md)) — Event time.
- `event_time_microseconds` ([DateTime64](../../sql-reference/data-types/datetime64.md)) — Event time with microseconds resolution.
**Example**
``` sql

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docs/ru/operations/system-tables/asynchronous_metric_log.md
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Столбцы:
- `event_date` ([Date](../../sql-reference/data-types/date.md)) — дата события.
- `event_time` ([DateTime](../../sql-reference/data-types/datetime.md)) — время события.
- `event_time_microseconds` ([DateTime64](../../sql-reference/data-types/datetime64.md)) — время события в микросекундах.
- `name` ([String](../../sql-reference/data-types/string.md)) — название метрики.
- `value` ([Float64](../../sql-reference/data-types/float.md)) — значение метрики.

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# system.metric_log {#system_tables-metric_log}
Содержит историю значений метрик из таблиц `system.metrics` и `system.events`, периодически сбрасываемую на диск.
Для включения сбора истории метрик в таблице `system.metric_log` создайте `/etc/clickhouse-server/config.d/metric_log.xml` следующего содержания:
``` xml
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</yandex>
```
Столбцы:
- `event_date` ([Date](../../sql-reference/data-types/date.md)) — дата события.
- `event_time` ([DateTime](../../sql-reference/data-types/datetime.md)) — время события.
- `event_time_microseconds` ([DateTime64](../../sql-reference/data-types/datetime64.md)) — время события в микросекундах.
**Пример**
``` sql