net_write_timeout

Description

The net_write_timeout variable specifies the number of seconds to wait for a block write to a connection before interrupting the write.

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 in their own tenant.

Attributes

Remarks

When the server writes data to the client, the net_write_timeout variable specifies the timeout value in seconds before the write is interrupted.

Examples

Set the number of seconds to wait for a block write connection before interrupting the write operation to 60.

• Global level

  obclient> SET GLOBAL net_write_timeout=60;
  

• Session level

  obclient> SET net_write_timeout=60;