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

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Run and manage OceanBase on your infra

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The free, open-source distributed database

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OceanBase Database

SQL - V4.2.0

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    Route parameters on nodes

    Last Updated:2023-10-31 11:17:11  Updated
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    Parameter
    Description
    Recommended value/range
    enable_index_route Specifies whether to enable routing for the global index table based on global index keys on OceanBase Database Proxy (ODP).
  • True: enable
  • False: disable. This is the default value.
  • We recommend that you use the default value.
    enable_pl_route Specifies whether to enable PL routing on ODP.
  • True: enable. This is the default value.
  • False: disable
  • We recommend that you set it to False.
    enable_reroute Specifies whether to enable secondary routing on ODP. If secondary routing is enabled, when routing fails for the first time, the request is forwarded to the corresponding OBServer again.
  • True: enable
  • False: disable. This is the default value.
    Note:
    Secondary routing takes effect only after you enable the OceanBase 2.0 protocol between ODP and an OBServer by setting the enable_ob_protocol_v2 parameter.
  • We recommend that you use the default value.
    enable_partition_table_route Specifies whether to enable partition table routing on ODP.
  • True: enable. This is the default value.
  • False: disable
  • We recommend that you use the default value.
    server_routing_mode The routing mode of ODP. Valid values:
  • oceanbase: the OceanBase mode. This is the default value.
  • random: the random mode. The OBServer is randomly selected to send requests.
  • mock: the mock mode. You can use the test_server_addr parameter on the OBServer to specify an IP route in the format of "ip1:sql_port1;ip2:sql_port2".
  • mysql: the MySQL mode, which is used to connect to a MySQL cluster.
  • We recommend that you use the default value.
    enable_ob_protocol_v2 Specifies whether to enable the OceanBase 2.0 protocol (a transfer protocol developed by OceanBase based on the MySQL compression protocol) for transfer between ODP and the OBServer.
  • True: enable.
  • False: disable. This is the default value.
  • We recommend that you use the default value.
    routing_cache_mem_limited Specifies the maximum memory for the ODP route cache, such as the table cache and address cache. Value range: [1 KB, 100 GB][]. Default value: 128 MB. We recommend that you use the default value.
    enable_bad_route_reject Specifies whether to reject requests that cannot be routed.
  • True: reject requests.
  • False: do not reject requests. This is the default value.
  • We recommend that you use the default value.

    You can view and modify the preceding parameters by executing the SHOW PROXYCONFIG LIKE and ALTER PROXYCONFIG SET statements in the sys tenant.

    Example:

    obclient>ALTER PROXYCONFIG SET enable_pl_route = False;
    
    obclient> SHOW PROXYCONFIG LIKE 'enable_pl_route';
    

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