OceanBase Connector/J V2.4.2|V2.4.4|OceanBase Connector/J |docs|OceanBase Documentations

Version information

Release date: February 9, 2023
Version: V2.4.2

Overview

OceanBase Connector/J V2.4.2 can obtain OceanBase Database Proxy (ODP) configurations from OceanBase Cloud Platform (OCP) to improve load balancing performance. Some issues related to compatibility and the OB2.0 protocol are fixed. The version is recommended for general businesses.

Enhanced features

OceanBase Connector/J can obtain ODP configurations from OCP to improve load balancing performance. The following URL parameters are added.

Parameter	Description	Default value
ocpAccessInterval	The interval for accessing OCP, in minutes.	5
httpConnectTimeout	The timeout period for connecting to a network resource over HTTP, in milliseconds. This parameter is set when a communications link to the resource referenced by this URLConnection is opened.	0 (infinite)
httpReadTimeout	The timeout period for reading a network resource over HTTP when the URLConnection to the resource is established, in milliseconds. The value 0 indicates an infinite timeout period, which means not to specify a timeout period.	0 (infinite)

Bug fixes

Fixed a bug that in MySQL mode, the behavior of the getImportedKeys API is not supported.
Fixed a bug that in MySQL mode, the behavior to export DATATIME fields with the value of "0000-00-00 00:00:00" is not supported.
Fixed a bug that in Oracle mode, an error is returned when the getDouble API obtains data of the FLOAT type by using the binary protocol.
Fixed a bug that an error is returned because the ORDER BY keyword is not added to internal SQL requests of the getBestRowIdentifier API.
Fixed a bug that the load balancing strategy configured by using an extended URL option does not take effect.
Fixed a bug that in Oracle mode, an array cannot contain data of the BLOB type.
Fixed a bug that in MySQL mode, the errors returned by APIs such as SELECT ' ' and getShort() are inconsistent with those in the native driver.
Fixed a bug that in MySQL mode, the return value of the ResultSetMetaData.getColumnName() API is inconsistent with that of the native driver.
Fixed a bug that in MySQL mode, a composite index is inserted into rows but the SELECT statement returns an error.
Fixed a bug that in MySQL and Oracle modes, after the result set is disabled, the behavior of getMetaData() is inconsistent with that of the native driver.
Fixed a bug that in MySQL and Oracle modes, after the result set is disabled, the behavior of getInt() is inconsistent with that of the native driver.
Fixed a bug that in MySQL mode, the return value of the ParameterMetaData API is inconsistent with that of the native driver.
Fixed a bug that the client IP address is transparently transmitted because the getLocalAddress API returns '0.0.0.0' for the rich client.