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      - log_archive_batch_buffer_limit
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      - log_disk_percentage
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      - ls_meta_table_check_interval
      - max_kept_major_version_number
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      - max_string_print_length
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      - memory_chunk_cache_size
      - memory_limit
      - memory_limit_percentage
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      - merge_stat_sampling_ratio
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      - micro_block_merge_verify_level
      - migrate_concurrency
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      - min_observer_version
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      - minor_warm_up_duration_time
      - multiblock_read_gap_size
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      - mysql_port
      - net_thread_count
      - ob_esi_io_concurrency
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      - ob_esi_memory_limit
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      - ob_esi_session_timeout
      - ob_esi_syslog_level
      - ob_event_history_recycle_interval
      - ob_ratelimit_stat_period
      - ob_startup_mode
      - obconfig_url
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      - partition_table_check_interval
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      - px_task_size
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      - rdma_io_thread_count
      - rebuild_replica_data_lag_threshold
      - recyclebin_object_expire_time
      - replica_safe_remove_time
      - resource_hard_limit
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      - restore_concurrency
      - rootservice_async_task_queue_size
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      - row_compaction_update_limit
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术语

datafile_maxsize

更新时间：2026-04-10 11:58:02

分享

datafile_maxsize 用于设置磁盘文件自动扩容的空间最大值。

说明

该配置项从 V3.1.5 版本开始引入。

属性	描述
参数类型	容量类型
默认值	0
取值范围	[0M, +∞)
是否重启 OBServer 节点生效	否

示例

alter system set datafile_maxsize = '10G';

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