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Fix docs

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János Benjamin Antal 2024-07-02 10:32:51 +00:00
parent ef7c616f41
commit d10e65291c
2 changed files with 12 additions and 2 deletions
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12
docs/en/operations/settings/settings.md
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@ -2855,7 +2855,7 @@ The minimum chunk size in bytes, which each thread will parse in parallel.
## merge_selecting_sleep_ms {#merge_selecting_sleep_ms}
Sleep time for merge selecting when no part is selected. A lower setting triggers selecting tasks in `background_schedule_pool` frequently, which results in a large number of requests to ClickHouse Keeper in large-scale clusters.
Minimum sleep time for merge selecting when no part is selected. A lower setting triggers selecting tasks in `background_schedule_pool` frequently, which results in a large number of requests to ClickHouse Keeper in large-scale clusters.
Possible values:
@ -2863,6 +2863,16 @@ Possible values:
Default value: `5000`.
## max_merge_selecting_sleep_ms
Maximum sleep time for merge selecting when no part is selected. A lower setting triggers selecting tasks in `background_schedule_pool` frequently, which results in a large number of requests to ClickHouse Keeper in large-scale clusters.
Possible values:
- Any positive integer.
Default value: `60000`.
## parallel_distributed_insert_select {#parallel_distributed_insert_select}
Enables parallel distributed `INSERT ... SELECT` query.

2
src/Storages/MergeTree/MergeTreeSettings.h
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@ -67,7 +67,7 @@ struct Settings;
M(Bool, fsync_part_directory, false, "Do fsync for part directory after all part operations (writes, renames, etc.).", 0) \
M(UInt64, non_replicated_deduplication_window, 0, "How many last blocks of hashes should be kept on disk (0 - disabled).", 0) \
M(UInt64, max_parts_to_merge_at_once, 100, "Max amount of parts which can be merged at once (0 - disabled). Doesn't affect OPTIMIZE FINAL query.", 0) \
M(UInt64, merge_selecting_sleep_ms, 5000, "Maximum sleep time for merge selecting, a lower setting will trigger selecting tasks in background_schedule_pool frequently which result in large amount of requests to zookeeper in large-scale clusters", 0) \
M(UInt64, merge_selecting_sleep_ms, 5000, "Minimum sleep time for merge selecting, a lower setting will trigger selecting tasks in background_schedule_pool frequently which result in large amount of requests to zookeeper in large-scale clusters", 0) \
M(UInt64, max_merge_selecting_sleep_ms, 60000, "Maximum sleep time for merge selecting, a lower setting will trigger selecting tasks in background_schedule_pool frequently which result in large amount of requests to zookeeper in large-scale clusters", 0) \
M(Float, merge_selecting_sleep_slowdown_factor, 1.2f, "The sleep time for merge selecting task is multiplied by this factor when there's nothing to merge and divided when a merge was assigned", 0) \
M(UInt64, merge_tree_clear_old_temporary_directories_interval_seconds, 60, "The period of executing the clear old temporary directories operation in background.", 0) \