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    - 集群级别配置项
      - alert_log_level
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      - all_server_list
      - auto_broadcast_location_cache_rate_limit
      - auto_leader_switch_interval
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      - debug_sync_timeout
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      - election_blacklist_interval
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      - enable_auto_leader_switch
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      - enable_rpc_authentication_bypass
      - enable_separate_sys_clog
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      - enable_sys_table_ddl
      - enable_sys_unit_standalone
      - enable_syslog_recycle
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      - enable_tcp_keepalive
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      - external_table_disk_cache_max_percentage
      - fast_recovery_concurrency
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      - fuse_row_cache_priority
      - gc_wait_archive
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      - global_background_cpu_quota
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      - ilog_index_expire_time
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      - internal_sql_execute_timeout
      - large_query_threshold
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      - leak_mod_to_check
      - lease_time
      - local_ip
      - location_cache_cpu_quota
      - location_cache_expire_time
      - location_cache_priority
      - location_cache_refresh_min_interval
      - location_cache_refresh_rpc_timeout
      - 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
      - ob_enable_utl_tcp
      - ob_java_home
      - ob_java_connector_path
      - ob_java_opts
      - ob_enable_utl_http
      - 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
      - schema_history_recycle_interval
      - server_balance_cpu_mem_tolerance_percent
      - server_balance_critical_disk_waterlevel
      - server_balance_disk_tolerance_percent
      - server_check_interval
      - server_cpu_quota_max
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      - server_data_copy_in_concurrency
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      - server_permanent_offline_time
      - sql_audit_memory_limit
      - sql_login_thread_count
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      - stack_size
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      - storage_meta_cache_priority
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      - switchover_process_thread_count
      - sync_io_thread_count
      - sys_bkgd_io_high_percentage
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      - sys_bkgd_migration_change_member_list_timeout
      - sys_bkgd_migration_retry_num
      - sys_bkgd_net_percentage
      - sys_cpu_limit_trigger
      - syslog_compress_func
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      - syslog_file_uncompressed_count
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      - syslog_level
      - system_cpu_quota
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      - tablet_meta_table_check_interval
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      - tablet_size
      - tcp_keepcnt
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      - trace_log_sampling_interval
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      - trx_2pc_retry_interval
      - trx_force_kill_threshold
      - trx_try_wait_lock_timeout
      - unit_balance_resource_weight
      - unit_gc_wait_time
      - use_large_pages
      - user_block_cache_priority
      - user_iort_up_percentage
      - user_row_cache_priority
      - user_tab_col_stat_cache_priority
      - virtual_table_location_cache_expire_time
      - wait_leader_batch_count
      - weak_read_version_refresh_interval
      - workers_per_cpu_quota
      - zone
      - zone_merge_concurrency
      - zone_merge_order
      - zone_merge_timeout
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wait_leader_batch_count

更新时间：2026-03-26 20:47:01

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说明

由于 V4.x 升级为单机日志流架构，切主由单日志流控制，该配置项已不适用，从 V4.0.0 版本开始删除。

功能描述

wait_leader_batch_count 用于设置 RootService 每次发送切主命令的最大分区个数。

属性说明

属性	描述
参数类型	Int
默认值	1024
取值范围	[128, 5000]
是否重启 OBServer 节点生效	否

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