OceanBase Database Proxy

V4.2.3

What is ODP?
Installation and deployment
- Overview
- Use OBD to deploy ODP
- Deploy ODP by using OCP
- Deploy ODP by using the CLI
- Deployment modes
Basic operations
Configuration parameter
- View and modify parameters
- Parameter summary
- Parameters that take effect dynamically
  - binlog_service_ip
  - cache_cleaner_clean_interval
  - check_tenant_locality_change
  - client_max_connections
  - client_max_memory_size
  - client_session_id_version
  - client_sock_option_flag_out
  - client_tcp_keepcnt
  - client_tcp_keepidle
  - client_tcp_keepintvl
  - client_tcp_user_timeout
  - cluster_count_high_water_mark
  - cluster_expire_time
  - compression_algorithm
  - config_server_refresh_interval
  - congestion_fail_window
  - congestion_failure_threshold
  - congestion_retry_interval
  - connection_diagnosis_option
  - connect_observer_max_retries
  - current_local_config_version
  - default_buffer_water_mark
  - default_inactivity_timeout
  - delay_exit_time
  - delay_update_entry_interval
  - detect_server_timeout
  - digest_sql_length
  - enable_abort_conn_info
  - enable_async_log
  - enable_async_pull_location_cache
  - enable_bad_route_reject
  - enable_binlog_service
  - enable_cached_server
  - enable_causal_order_read
  - enable_client_connection_lru_disconnect
  - enable_client_ip_checkout
  - enable_client_ssl
  - enable_cloud_full_username
  - enable_cluster_checkout
  - enable_compression_protocol
  - enable_congestion
  - enable_connection_diagnosis
  - enable_extra_prometheus_metric
  - enable_flow_control
  - enable_full_username
  - enable_get_rslist_remote
  - enable_index_route
  - enable_monitor_stat
  - enable_ob_protocol_v2
  - enable_ob_protocol_v2_with_client
  - enable_partition_table_route
  - enable_performance_mode
  - enable_pl_route
  - enable_primary_zone
  - enable_prometheus
  - enable_proxy_scramble
  - enable_qa_mode
  - enable_qos
  - enable_read_write_split
  - enable_report_session_stats
  - enable_reroute
  - enable_sequence_prefetch
  - enable_server_ssl
  - enable_standby
  - enable_stat
  - enable_strict_stat_time
  - enable_sync_all_stats
  - enable_syslog_file_compress
  - enable_syslog_wf
  - enable_trace
  - enable_trace_stats
  - enable_trans_detail_stats
  - enable_transaction_internal_routing
  - enable_transaction_split
  - enable_weak_reroute
  - enable_xa_route
  - fetch_proxy_bin_random_time
  - fetch_proxy_bin_timeout
  - flow_consumer_reenable_threshold
  - flow_event_queue_threshold
  - flow_high_water_mark
  - flow_low_water_mark
  - hot_upgrade_exit_timeout
  - hot_upgrade_failure_retries
  - hot_upgrade_rollback_timeout
  - idc_list_refresh_interval
  - ignore_local_config
  - internal_cmd_mem_limited
  - ldg_info_refresh_interval
  - log_cleanup_interval
  - log_dir_size_threshold
  - log_file_percentage
  - long_async_task_timeout
  - max_log_file_size
  - max_syslog_file_count
  - max_syslog_file_time
  - mem_leak_check_class_name
  - mem_leak_check_mod_name
  - metadb_server_state_refresh_interval
  - min_congested_connect_timeout
  - min_keep_congestion_interval
  - monitor_cost_ms_unit
  - monitor_item_limit
  - monitor_item_max_idle_period
  - monitor_log_level
  - monitor_stat_dump_interval
  - monitor_stat_high_threshold
  - monitor_stat_low_threshold
  - monitor_stat_middle_threshold
  - mysql_version
  - need_convert_vip_to_tname
  - net_config_poll_timeout
  - normal_pl_update_threshold
  - ob_max_read_stale_time
  - obproxy_force_parallel_query_dop
  - obproxy_read_consistency
  - obproxy_read_only
  - obproxy_sys_password
  - observer_query_timeout_delta
  - observer_sys_password
  - observer_sys_password1
  - partition_location_expire_relative_time
  - prometheus_sync_interval
  - protocol_diagnosis_level
  - proxy_hot_upgrade_check_interval
  - proxy_id
  - proxy_idc_name
  - proxy_info_check_interval
  - proxy_local_cmd
  - proxy_mem_limited
  - proxy_primary_zone_name
  - proxy_route_policy
  - proxy_tenant_name
  - qa_mode_mock_public_cloud_slb_addr
  - qos_stat_clean_interval
  - qos_stat_item_limit
  - query_digest_time_threshold
  - read_stale_retry_interval
  - refresh_idc_list
  - refresh_json_config
  - refresh_rslist
  - request_buffer_length
  - route_diagnosis_level
  - routing_cache_mem_limited
  - sequence_entry_expire_time
  - sequence_fail_retry_count
  - sequence_prefetch_threshold
  - server_detect_fail_threshold
  - server_detect_mode
  - server_detect_refresh_interval
  - server_routing_mode
  - server_state_refresh_interval
  - server_tcp_init_cwnd
  - server_tcp_keepcnt
  - server_tcp_keepidle
  - server_tcp_keepintvl
  - server_tcp_user_timeout
  - short_async_task_timeout
  - skip_proxy_sys_private_check
  - skip_proxyro_check
  - slow_proxy_process_time_threshold
  - slow_query_time_threshold
  - slow_transaction_time_threshold
  - sock_option_flag_out
  - sock_packet_mark_out
  - sock_packet_tos_out
  - sock_recv_buffer_size_out
  - sock_send_buffer_size_out
  - sql_table_cache_expire_relative_time
  - sql_table_cache_mem_limited
  - sqlaudit_mem_limited
  - ssl_attributes
  - stat_dump_interval
  - stat_table_sync_interval
  - syslog_io_bandwidth_limit
  - syslog_level
  - target_db_server
  - tenant_location_valid_time
  - tunnel_request_size_threshold
  - username_separator
  - xflush_log_level
- Parameters that take effect after a restart
  - automatic_match_work_thread
  - block_thread_num
  - enable_cpu_isolate
  - enable_cpu_topology
  - enable_global_ps_cache
  - enable_sharding
  - enable_strict_kernel_release
  - grpc_client_num
  - grpc_thread_num
  - ip_listen_mode
  - listen_port
  - local_bound_ip
  - local_bound_ipv6_ip
  - net_accept_threads
  - obproxy_config_server_url
  - prometheus_cost_ms_unit
  - prometheus_listen_port
  - rootservice_cluster_name
  - rootservice_list
  - shard_scan_thread_num
  - stack_size
  - task_thread_num
  - work_thread_num
Connection management
- Principles
- Session status synchronization
- Client session
- Server session
- Network connection
- Connection diagnostics
Data routing
- Factors affecting data routing
- ODP routing
- Intra-tenant routing
  - Overview
  - IP address-based routing
  - Partitioned table-based routing for strong-consistency reads
  - Global index table-based routing for strong-consistency reads
  - Replication table-based routing for strong-consistency reads
  - Primary zone-based routing for strong-consistency reads
  - Strategy-based routing
  - Distributed transaction routing
  - Rerouting
  - Forcible routing
- Read/Write separation
- Follower latency threshold
- Function partition key routing
  - Overview
  - String functions
  - Numeric calculation functions
  - Date calculation functions
  - FAQ
Logs
- Overview
- obproxy_diagnosis.log
- obproxy_digest.log
- obproxy_error.log
- obproxy_slow.log
- obproxy_stat.log
- obproxy.log
High availability mechanism
- Overview
- High availability of ODP services
- High availability of OceanBase Database
- High availability testing
Security and protocols
Operation and maintenance
- Troubleshooting logic
- Performance analysis
- Show Trace
- Routing diagnostics
  - Overview
  - Obtain diagnostic information
  - Diagnostic point troubleshooting
    - Overview
    - SQL_PARSE
    - ROUTE_INFO
    - LOCATION_CACHE_LOOKUP
    - ROUTINE_ENTRY_LOOKUP_DONE
    - FETCH_TABLE_RELATED_DATA
    - TABLE_ENTRY_LOOKUP_DONE
    - EXPR_PARSE
    - CALC_ROWID
    - RESOLVE_TOKEN
    - RESOLVE_EXPR
    - CALC_PARTITION_ID
    - PARTITION_ID_CALC_DONE
    - PARTITION_ENTRY_LOOKUP_DONE
    - ROUTE_POLICY
    - CONGESTION_CONTROL
    - RETRY
    - HANDLE_RESPONSE
  - Examples
- Memory leak diagnostics
Release Notes
- Versioning rules
- Enterprise Edition
  - V4.2
    - ODP Enterprise Edition V4.2.3
    - ODP Enterprise Edition V4.2.2
    - ODP Enterprise Edition V4.2.1
  - V4.1
    - ODP Enterprise Edition V4.1.0
  - V4.0
    - ODP Enterprise Edition V4.0.0
  - V3.2
    - ODP Enterprise Edition V3.2.11
    - ODP Enterprise Edition V3.2.3.5
- Community Edition
  - V4.2
    - ODP Community Edition V4.2.3
    - ODP Community Edition V4.2.1
    - ODP Community Edition V4.2.0
  - V4.1
    - ODP Community Edition V4.1.0
  - V4.0
    - ODP Community Edition V4.0.0

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xflush_log_level

Last Updated：2024-11-15 04:50:29 Updated

xflush_log_level specifies the xflush log level.

Note

The default value of this parameter is changed from INFO to ERROR since OceanBase Database Proxy (ODP) V4.2.3.

Attribute	Description
Parameter type	String
Default value	ERROR
Value range	`ERROR`: indicates an error. `WARN`: indicates a warning. `INFO`: indicates a prompt. `EDIAG`: indicates the diagnostic information for troubleshooting. `WDIAG`: indicates the diagnostic information for troubleshooting, which are expected errors. `TRACE`: indicates task-level debugging information. `DEBUG`: indicates detailed debugging information.

For more information about the log level, see Overview.

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