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PS-9765 - Document new features in percona-202401 to percona-202404 tags
 modified: docs/variables.md
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‎docs/variables.md

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@@ -31,12 +31,14 @@ Also, all variables can exist in one or both of the following scopes:
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| [`rocksdb_blind_delete_primary_key`](#rocksdb_blind_delete_primary_key) |
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| [`rocksdb_block_cache_numshardbits`](#rocksdb_block_cache_numshardbits) |
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| [`rocksdb_block_cache_size`](#rocksdb_block_cache_size) |
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| [`rocksdb_bulk_load_fail_if_not_bottommost_level`](#rocksdb_bulk_load_fail_if_not_bottommost_level) |
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| [`rocksdb_bulk_load_partial_index`](#rocksdb_bulk_load_partial_index) |
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| [`rocksdb_bulk_load_use_sst_partitioner`](#rocksdb_bulk_load_use_sst_partitioner) |
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| [`rocksdb_block_restart_interval`](#rocksdb_block_restart_interval) |
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| [`rocksdb_block_size`](#rocksdb_block_size) |
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| [`rocksdb_block_size_deviation`](#rocksdb_block_size_deviation) |
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| [`rocksdb_bulk_load_compression_parallel_threads`](#rocksdb_bulk_load_compression_parallel_threads) |
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| [`rocksdb_bulk_load_enable_unique_key_check`](#rocksdb_bulk_load_enable_unique_key_check) |
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| [`rocksdb_bulk_load_fail_if_not_bottommost_level`](#rocksdb_bulk_load_fail_if_not_bottommost_level) |
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| [`rocksdb_bulk_load_partial_index`](#rocksdb_bulk_load_partial_index) |
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| [`rocksdb_bulk_load_use_sst_partitioner`](#rocksdb_bulk_load_use_sst_partitioner) |
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| [`rocksdb_bulk_load`](#rocksdb_bulk_load) |
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| [`rocksdb_bulk_load_allow_sk`](#rocksdb_bulk_load_allow_sk) |
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| [`rocksdb_bulk_load_allow_unsorted`](#rocksdb_bulk_load_allow_unsorted) |
@@ -75,6 +77,7 @@ Also, all variables can exist in one or both of the following scopes:
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| [`rocksdb_debug_cardinality_multipler`](#rocksdb_debug_cardinality_multiplier) |
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| [`rocksdb_debug_manual_compaction_delay`](#rocksdb_debug_manual_compaction_delay) |
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| [`rocksdb_debug_optimizer_no_zero_cardinality`](#rocksdb_debug_optimizer_no_zero_cardinality) |
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| [`rocksdb_debug_skip_bloom_filter_check_on_iterator_bounds`](#rocksdb_debug_skip_bloom_filter_check_on_iterator_bounds) |
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| [`rocksdb_debug_ttl_ignore_pk`](#rocksdb_debug_ttl_ignore_pk) |
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| [`rocksdb_debug_ttl_read_filter_ts`](#rocksdb_debug_ttl_read_filter_ts) |
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| [`rocksdb_debug_ttl_rec_ts`](#rocksdb_debug_ttl_rec_ts) |
@@ -88,13 +91,19 @@ Also, all variables can exist in one or both of the following scopes:
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| [`rocksdb_enable_bulk_load_api`](#rocksdb_enable_bulk_load_api) |
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| [`rocksdb_enable_delete_range_for_drop_index`](#rocksdb_enable_delete_range_for_drop_index) |
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| [`rocksdb_enable_insert_with_update_caching`](#rocksdb_enable_insert_with_update_caching) |
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|[`rocksdb_enable_instant_ddl`](#rocksdb_enable_instant_ddl)|
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|[`rocksdb_enable_instant_ddl_for_append_column`](#rocksdb_enable_instant_ddl_for_append_column)|
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|[`rocksdb_enable_instant_ddl_for_column_default_changes`](#rocksdb_enable_instant_ddl_for_column_default_changes)|
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|[`rocksdb_enable_instant_ddl_for_drop_index_changes`](#rocksdb_enable_instant_ddl_for_drop_index_changes)|
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|[`rocksdb_enable_instant_ddl_for_table_comment_changes`](#rocksdb_enable_instant_ddl_for_table_comment_changes)|
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| [`rocksdb_enable_iterate_bounds`](#rocksdb_enable_iterate_bounds) |
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| [`rocksdb_enable_pipelined_write`](#rocksdb_enable_pipelined_write) |
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| [`rocksdb_enable_remove_orphaned_dropped_cfs`](#rocksdb_enable_remove_orphaned_dropped_cfs) |
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| [`rocksdb_enable_ttl`](#rocksdb_enable_ttl) |
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| [`rocksdb_enable_ttl_read_filtering`](#rocksdb_enable_ttl_read_filtering) |
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| [`rocksdb_enable_thread_tracking`](#rocksdb_enable_thread_tracking) |
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| [`rocksdb_enable_write_thread_adaptive_yield`](#rocksdb_enable_write_thread_adaptive_yield) |
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| [`rocksdb_enable_udt_in_mem`](#rocksdb_enable_udt_in_mem) |
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| [`rocksdb_error_if_exists`](#rocksdb_error_if_exists) |
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| [`rocksdb_error_on_suboptimal_collation`](#rocksdb_error_on_suboptimal_collation) |
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| [`rocksdb_file_checksums`](#rocksdb_file_checksums) |
@@ -109,6 +118,8 @@ Also, all variables can exist in one or both of the following scopes:
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| [`rocksdb_ignore_unknown_options`](#rocksdb_ignore_unknown_options) |
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| [`rocksdb_index_type`](#rocksdb_index_type) |
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| [`rocksdb_info_log_level`](#rocksdb_info_log_level) |
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|[`rocksdb_invalid_create_option_action`](#rocksdb_invalid_create_option_action)|
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|[`rocksdb_io_error_action`](#rocksdb_io_error_action)|
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| [`rocksdb_is_fd_close_on_exec`](#rocksdb_is_fd_close_on_exec) |
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| [`rocksdb_keep_log_file_num`](#rocksdb_keep_log_file_num) |
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| [`rocksdb_large_prefix`](#rocksdb_large_prefix) |
@@ -173,6 +184,7 @@ Also, all variables can exist in one or both of the following scopes:
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| [`rocksdb_strict_collation_check`](#rocksdb_strict_collation_check) |
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| [`rocksdb_strict_collation_exceptions`](#rocksdb_strict_collation_exceptions) |
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| [`rocksdb_table_cache_numshardbits`](#rocksdb_table_cache_numshardbits) |
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|[`rocksdb_table_stats_skip_system_cf`](#rocksdb_table_stats_skip_system_cf)|
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| [`rocksdb_table_stats_background_thread_nice_value`](#rocksdb_table_stats_background_thread_nice_value) |
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| [`rocksdb_table_stats_max_num_rows_scanned`](#rocksdb_table_stats_max_num_rows_scanned) |
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| [`rocksdb_table_stats_recalc_threshold_count`](#rocksdb_table_stats_recalc_threshold_count) |
@@ -193,6 +205,7 @@ Also, all variables can exist in one or both of the following scopes:
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| [`rocksdb_use_direct_reads`](#rocksdb_use_direct_reads) |
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| [`rocksdb_use_fsync`](#rocksdb_use_fsync) |
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| [`rocksdb_use_hyper_clock_cache`](#rocksdb_use_hyper_clock_cache) |
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|[`rocksdb_use_io_uring`](#rocksdb_use_io_uring) |
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| [`rocksdb_use_write_buffer_manager`](#rocksdb_use_write_buffer_manager) |
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| [`rocksdb_validate_tables`](#rocksdb_validate_tables) |
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| [`rocksdb_verify_row_debug_checksums`](#rocksdb_verify_row_debug_checksums) |
@@ -218,6 +231,8 @@ Also, all variables can exist in one or both of the following scopes:
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| Data type | String or numeric |
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| Default | NORMAL or 1 |
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As of Percona Server for MySQL 8.0.42, the `--rocksdb-access-hint-on-compaction-start` variable has been removed.
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Specifies the file access pattern once a compaction is started,
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applied to all input files of a compaction.
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Possible values are:
@@ -813,7 +828,9 @@ This variable acts as a trigger. Set the variable to `ON`, `rocksdb-compact-lzer
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| Dynamic | Yes |
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| Scope | Global |
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| Data type | Numeric |
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| Default | 0 |
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| Default | 2097152 |
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As of Percona Server for MySQL 8.0.43, the `--rocksdb-compaction-readahead-size` default value is `2097152`. In previous versions, the default value was `0`.
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Specifies the size of reads to perform ahead of compaction.
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Default value is `0`.
@@ -1271,7 +1288,12 @@ use or other misuse can have serious side effects to the server instance.
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| Dynamic | Yes |
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| Scope | Global |
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| Data type | Boolean |
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| Default | ON |
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| Default | OFF |
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As of Percona Server for MySQL 8.0.42, the `--rocksdb-disable-instant-ddl` variable has been deprecated and may be removed in a future release.
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As of Percona Server for MySQL 8.0.43, the `--rocksdb-disable-instant-ddl` default value is `OFF`. In previous versions, the default value was `ON`.
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The variable was implemented in [Percona Server for MySQL 8.0.33-25](release-notes/8.0.33-25.md).
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@@ -1464,10 +1486,24 @@ insensitive). Enabled by default.
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| Data type | Boolean |
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| Default | OFF |
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As of Percona Server for MySQL 8.0.43, the `--rocksdb-file-checksums` data type is `ENUM`. In previous versions, the data type was `Boolean`.
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As of Percona Server for MySQL 8.0.43, the `--rocksdb-file-checksums` default value is `CHECKSUM_OFF`. In previous versions, the default value was `OFF`.
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As of Percona Server for MySQL 8.0.43, the available values are:
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* `CHECKSUM_OFF`: Nothing happens.
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* `CHECKSUM_WRITE_ONLY`: Write checksums, but skip verification.
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* `CHECKSUM_WRITE_AND_VERIFY`: Write checksums and verify on DB::open.
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This variable has been implemented in [Percona Server for MySQL 8.0.36-28](.//release-notes/8.0.36-28.md).
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This variable controls whether to write and check RocksDB file-level checksums. The default value is `OFF` which means the variable is disabled.
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### `rocksdb_flush_log_at_trx_commit`
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| Option | Description |
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| Data type | Boolean |
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| Default | ON |
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As of Percona Server for MySQL 8.0.42, the `--rocksdb-large-prefix` variable has been removed.
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This variable is deprecated in `Percona Server for MySQL 8.0.36-28` and will be removed in a future release.
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When enabled, this option allows index key prefixes longer than 767 bytes (up to 3072 bytes). The values for `rocksdb_large_prefix` should be the same between source and replica.
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| Data type | Boolean |
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| Default | ON |
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As of Percona Server for MySQL 8.0.42, the `--rocksdb-strict-collation-check` variable has been removed.
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This variable is considered **deprecated** in version 8.0.23-14.
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Specifies whether to check and verify
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| Data type | String |
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| Default | |
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As of Percona Server for MySQL 8.0.42, the `--rocksdb-strict-collation-exceptions` variable has been removed.
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This variable is considered **deprecated** in version 8.0.23-14.
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Lists tables (as a regular expression) that should be excluded

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