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https://issues.apache.org/jira/browse/HDDS-12254?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wei-Chiu Chuang updated HDDS-12254:
-----------------------------------
Release Note: Added `hadoop.hdds.db.rocksdb.compaction.deletion.ratio` (`0`
disables, values in `(0, 1]` enable; default: `0`) to trigger automatic RocksDB
compaction when an SST’s deletion tombstone ratio reaches the configured
threshold. (was: Added `hadoop.hdds.db.rocksdb.compaction.deletion.ratio`
(default: `0`, disabled) to trigger automatic RocksDB compaction when an SST’s
deletion tombstone ratio reaches the configured threshold.)
> Enable RocksDB auto compaction upon deletion threshold
> ------------------------------------------------------
>
> Key: HDDS-12254
> URL: https://issues.apache.org/jira/browse/HDDS-12254
> Project: Apache Ozone
> Issue Type: Improvement
> Reporter: Wei-Chiu Chuang
> Assignee: Wei-Chiu Chuang
> Priority: Major
> Labels: pull-request-available
> Fix For: 2.3.0
>
>
> RocksDB v8.11.3 and above supports a new feature
> ([https://github.com/facebook/rocksdb/commit/f7486ff6a31884ffd61644fb21a7ceafd7e107d1])
> /
> [https://github.com/facebook/rocksdb/wiki/RocksDB-Tuning-Guide#trigger-compaction-on-deletes]
> (CompactOnDeletionCollectorFactory) to trigger compaction when the number of
> deletion tombstones exceeds a threshold in sst files. It will require a
> RocksDB upgrade because the current version is 7.7.3. However, it may not
> help with the tombstones in memtable.
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