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      - location_cache_priority
      - location_cache_refresh_min_interval
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      - location_cache_refresh_sql_timeout
      - location_fetch_concurrency
      - location_refresh_thread_count
      - log_archive_batch_buffer_limit
      - log_archive_checkpoint_interval
      - log_disk_percentage
      - log_disk_size
      - logservice_access_point
      - log_storage_warning_trigger_percentage
      - log_storage_warning_tolerance_time
      - ls_meta_table_check_interval
      - max_kept_major_version_number
      - max_px_worker_count
      - max_string_print_length
      - max_syslog_file_count
      - memory_chunk_cache_size
      - memory_limit
      - memory_limit_percentage
      - memory_reserved
      - memstore_limit_percentage
      - merge_stat_sampling_ratio
      - merge_thread_count
      - merger_completion_percentage
      - merger_switch_leader_duration_time
      - merger_warm_up_duration_time
      - micro_block_merge_verify_level
      - migrate_concurrency
      - migration_disable_time
      - min_observer_version
      - minor_deferred_gc_time
      - minor_freeze_times
      - minor_merge_concurrency
      - minor_warm_up_duration_time
      - multiblock_read_gap_size
      - multiblock_read_size
      - mysql_port
      - net_thread_count
      - ob_esi_io_concurrency
      - ob_esi_max_syslog_file_count
      - ob_esi_memory_limit
      - ob_esi_rpc_port
      - ob_esi_session_timeout
      - ob_esi_syslog_level
      - ob_event_history_recycle_interval
      - ob_ratelimit_stat_period
      - ob_startup_mode
      - ob_python_home
      - obconfig_url
      - observer_id
      - ob_storage_s3_url_encode_type
      - ob_enable_java_env
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      - ofs_list
      - opt_tab_stat_cache_priority
      - partition_table_check_interval
      - plan_cache_evict_interval
      - plan_cache_high_watermark
      - plan_cache_low_watermark
      - px_task_size
      - px_workers_per_cpu_quota
      - rebuild_replica_data_lag_threshold
      - recyclebin_object_expire_time
      - replica_safe_remove_time
      - resource_hard_limit
      - resource_soft_limit
      - restore_concurrency
      - rootservice_async_task_queue_size
      - rootservice_async_task_thread_count
      - rootservice_list
      - rootservice_memory_limit
      - rootservice_ready_check_interval
      - row_compaction_update_limit
      - row_purge_thread_count
      - rpc_client_authentication_method
      - rpc_port
      - rpc_server_authentication_method
      - rpc_timeout
      - schema_history_expire_time
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      - server_balance_cpu_mem_tolerance_percent
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      - sys_bkgd_migration_retry_num
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      - unit_balance_resource_weight
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      - user_row_cache_priority
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      - virtual_table_location_cache_expire_time
      - wait_leader_batch_count
      - weak_read_version_refresh_interval
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row_purge_thread_count

更新时间：2026-04-01 17:07:10

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说明

由于该配置项对应功能并未生效过，该配置项从 V4..0.0 版本开始删除。

功能描述

row_purge_thread_count 用于设置执行内存中行内数据合并的最大工作线程数。

属性说明

属性	描述
参数类型	Int
默认值	4
取值范围	[1, 64]
是否重启 OBServer 节点生效	否

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