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A unified distributed database ready for your transactional, analytical, and AI workloads.

DEPLOY YOUR WAY

OceanBase Cloud

The best way to deploy and scale OceanBase

OceanBase Enterprise

Run and manage OceanBase on your infra

TRY OPEN SOURCE

OceanBase Community Edition

The free, open-source distributed database

OceanBase seekdb

Open source AI native search database

Customer Stories

Real-world success stories from enterprises across diverse industries.

View All
BY USE CASES

Mission-Critical Transactions

Global & Multicloud Application

Elastic Scaling for Peak Traffic

Real-time Analytics

Active Geo-redundancy

Database Consolidation

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Official technical guides, tutorials, API references, and manuals for all OceanBase products.

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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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What is ODP? Overview Use OBD to deploy ODP Deploy ODP by using OCP Deploy ODP by using the CLI Deployment modes Basic operations View and modify parameters Parameter summary 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
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  5. V4.2.3
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V 4.2.3
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ODP Enterprise Edition V3.2.3.5

Last Updated：2025-03-21 09:03:23  Updated
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V3.2.3.5
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V3.2.3.5

Version information

  • Release date: August 12, 2022

  • Version: V3.2.3.5

  • RPM version: obproxy-3.2.3.5-20220812154238

Overview

  • Business requests and internal requests are separated. Random routing is used for internal requests. The routing of business requests is controlled by a parameter.

  • When enable_cached_server is set to True, partitions are not randomly selected for business requests.

Bug fixes

  • Fixed the issue where, when a failure occurs in OceanBase Database, connection creation fails after more than three attempts are made to start ODP by specifying the startup option -r in the 127.0.0.1:port format.

  • Fixed the issue where the blocklist becomes invalid after a scheduled task of the cluster fails for more than 10 times.

  • Fixed the issue where ODP still considers that the connection is successfully established when the OBServer node is offline.

  • Fixed the issue where the OBServer node will stay on the blocklist after a scheduled task of the cluster fails for more than 10 times.

  • Fixed the issue where disconnection occurs when the COM_CHANGE_USER command is run.

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