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分布式版-V3.2.3企业版LTS

V3.2.3 文档更新记录
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  - 系统配置项
    - 系统配置项概述
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    - 集群级配置项
      - all_cluster_list
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      - datafile_disk_percentage
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      - fast_recovery_concurrency
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      - force_refresh_location_cache_interval
      - force_refresh_location_cache_threshold
      - freeze_trigger_percentage
      - fuse_row_cache_priority
      - gc_wait_archive
      - get_leader_candidate_rpc_timeout
      - global_index_build_single_replica_timeout
      - global_major_freeze_residual_memory
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      - high_priority_net_thread_count
      - ignore_replay_checksum_error
      - ignore_replica_checksum_error
      - ilog_index_expire_time
      - index_cache_priority
      - index_clog_cache_priority
      - index_info_block_cache_priority
      - internal_sql_execute_timeout
      - large_query_threshold
      - large_query_worker_percentage
      - leak_mod_to_check
      - lease_time
      - location_cache_cpu_quota
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      - 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_archive_concurrency
      - log_restore_concurrency
      - major_compact_trigger
      - major_freeze_duty_time
      - 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_check_interval
      - 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_compact_trigger
      - 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_event_history_recycle_interval
      - ob_ratelimit_stat_period
      - obconfig_url
      - ofs_list
      - partition_table_check_interval
      - partition_table_scan_batch_count
      - 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
      - role_change_timeout
      - 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_port
      - 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
      - server_cpu_quota_min
      - server_data_copy_in_concurrency
      - server_data_copy_out_concurrency
      - server_permanent_offline_time
      - server_temporary_offline_time
      - sql_audit_memory_limit
      - sql_audit_queue_size
      - ssl_client_authentication
      - ssl_external_kms_info
      - stack_size
      - switchover_process_thread_count
      - sys_bkgd_io_high_percentage
      - sys_bkgd_io_low_percentage
      - sys_bkgd_migration_change_member_list_timeout
      - sys_bkgd_migration_retry_num
      - sys_bkgd_net_percentage
      - sys_cpu_limit_trigger
      - syslog_io_bandwidth_limit
      - syslog_level
      - system_cpu_quota
      - system_memory
      - system_trace_level
      - tableapi_transport_compress_func
      - tablet_size
      - tcp_keepcnt
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      - unit_balance_resource_weight
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      - 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
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      - ob_esi_rpc_port
      - enable_ob_esi_process
      - ob_esi_session_timeout
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      - ob_esi_memory_limit
      - ob_esi_syslog_level
      - ob_esi_max_syslog_file_count
      - max_trx_2pc_retry_interval
    - 租户级配置项
  - 系统变量（MySQL 模式）
  - 系统变量（Oracle 模式）
  - 系统视图（MySQL 模式）
  - 系统视图（Oracle 模式）
  - 常见统计事件说明
  - 常见等待事件说明
  - 错误码（MySQL 模式）
  - 错误码（Oracle 模式）
  - 预留关键字（MySQL 模式）
  - 预留关键字（Oracle 模式）
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术语

memstore_limit_percentage

更新时间：2023-10-27 11:26:54

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功能描述

memstore_limit_percentage 用于设置租户使用 MemStore 的内存占其总可用内存的百分比。

属性说明

属性	描述
参数类型	整型
默认值	50
取值范围	[1, 99]
是否重启 OBServer 生效	否

使用说明

memstore_limit_percentage 配置项用于计算 Memstore_limit 的值：

memstore_limit_percentage = memstore_limit/min_memory

memstore_limit：租户 MemStore 内存上限，指 MemTable 能占用的内存上限，或者是业务数据能够占用的内存上限。
min_memory：租户内存上限，为创建租户时指定的值。其中租户内存使用者包括：MemStore + 其他( 如: 租户管理逻辑需要的内存)。

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