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rocksdb.*cf: supply descriptions on ttl and periodic-compaction-seconds. #13980

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Jun 28, 2023
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rocksdb.*cf: supply descriptions on ttl and periodic-compaction-seconds. #13980

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rocksdb.*cf: supply descriptions on `ttl` and `periodic-compaction-se…
LykxSassinator Jun 26, 2023
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wording updates
qiancai Jun 28, 2023
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format updates
qiancai Jun 28, 2023
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12 changes: 12 additions & 0 deletions tikv-configuration-file.md
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Expand Up @@ -1539,6 +1539,18 @@ Configuration items related to `rocksdb.defaultcf`, `rocksdb.writecf`, and `rock
- `5`: Can be read by TiKV v6.1 and later versions. Full and partitioned filters use a faster and more accurate Bloom filter implementation with a different schema.
+ Default value: `2`

### `ttl` <span class="version-mark">New in v7.2.0</span>
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+ SST files with updates older than the TTL will be automatically selected for compaction. These SST files will go through the compaction in a cascading way so that they can be compacted to the bottommost level or file.
+ Default value: `"30d"`
+ Unit: s(second)|h(hour)|d(day)

### `periodic-compaction-seconds` <span class="version-mark">New in v7.2.0</span>
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+ The time interval for periodic compaction. SST files with updates older than this value will be selected for compaction and rewritten to the same level where these SST files originally reside.
+ Default value: `"30d"`
+ Unit: s(second)|h(hour)|d(day)

## rocksdb.defaultcf.titan

Configuration items related to `rocksdb.defaultcf.titan`.
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