net_read_timeout

Description

The net_read_timeout variable specifies the number of seconds to wait for other data from a connection before interrupting the read operation.

Privilege requirements

• Query variables

  • Global level

    The sys tenant and all user tenants can execute the SHOW VARIABLES statement or view SYS.TENANT_VIRTUAL_GLOBAL_VARIABLE (Oracle mode) or information_schema.GLOBAL_VARIABLES (MySQL mode) to query the value of a global system variable.

  • Session level

    The sys tenant and all user tenants can execute the SHOW VARIABLES statement or view SYS.TENANT_VIRTUAL_SESSION_VARIABLE (Oracle mode) or information_schema.SESSION_VARIABLES (MySQL mode) to query the value of a session system variable.

• Modify variables

  • Set the variable at the global level

    • The sys tenant can directly modify the value of a global system variable.

    • MySQL user tenants must have the SUPER or ALTER SYSTEM privilege to modify the value of a global system variable.

    • Oracle user tenants must have the ALTER SYSTEM privilege to modify the value of a global system variable.

  • Set the variable at the session level

    The sys tenant and all user tenants can directly modify the value of a session system variable of the tenant.

Attributes

Remarks

The net_read_timeout variable specifies the timeout value in seconds before the server interrupts the read operation when it reads data from a client.

Examples

Set the number of seconds to wait for other data to arrive before interrupting the read operation to 30.

• Session level

  obclient> SET net_read_timeout =30;
  

• Global level

  obclient> SET GLOBAL net_read_timeout =30;