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Merge pull request #22941 from kirillikoff/kirillikoff-DOCSUP-6704

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DOCSUP-6704: Documented the inactive_parts_to
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alexey-milovidov 2021-04-10 23:05:20 +03:00 committed by GitHub
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docs/en/operations/settings/merge-tree-settings.md
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@ -56,6 +56,27 @@ Default value: 150.
ClickHouse artificially executes `INSERT` longer (adds ‘sleep’) so that the background merge process can merge parts faster than they are added.
## inactive_parts_to_throw_insert {#inactive-parts-to-throw-insert}
If the number of inactive parts in a single partition more than the `inactive_parts_to_throw_insert` value, `INSERT` is interrupted with the `Too many inactive parts (N). Parts cleaning are processing significantly slower than inserts` exception.
Possible values:
- Any positive integer.
Default value: 0 (unlimited).
## inactive_parts_to_delay_insert {#inactive-parts-to-delay-insert}
If the number of inactive parts in a single partition in the table at least that many the `inactive_parts_to_delay_insert` value, an `INSERT` artificially slows down. It is useful when a server fails to clean up parts quickly enough.
Possible values:
- Any positive integer.
Default value: 0 (unlimited).
## max_delay_to_insert {#max-delay-to-insert}
The value in seconds, which is used to calculate the `INSERT` delay, if the number of active parts in a single partition exceeds the [parts_to_delay_insert](#parts-to-delay-insert) value.