OceanBase Connector/J V2.4.0

Version information

• Release date: October 18, 2022

• Version: V2.4.0

Overview

OceanBase Connector/J V2.4.0 supports OceanBase Protocol 2.0 and coordinates with OceanBase Database and OceanBase Database Proxy (ODP) to provide the end-to-end tracing feature. The version is recommended for general businesses. We recommend that you use it with OceanBase Database V4.0.0.

Feature enhancements

• OceanBase Protocol 2.0 is supported. You can use the useOceanBaseProtocolV20 parameter to enable or disable the protocol. By default, the protocol is enabled.

• This version provides the end-to-end tracing feature in coordination with OceanBase Database and ODP. You can use the enableFullLinkTrace parameter to enable or disable the feature. By default, the feature is disabled. When enableFullLinkTrace is set to true, useOceanBaseProtocolV20 is forcibly set to true.

Bug fixes

• Fixed the issue where the No active connection found for master exception is thrown for the load balancing of the daemon thread when network fluctuations occur.

• Fixed the issue of the ArrayBinding feature that the setNull() method causes the server to return exceptions.

• Fixed the issue where the PreparedStatement object is closed only at the first time when a procedure is recursively called, if both the PreparedStatement and PrepareExecute protocols are enabled by configuring useServerPrepStmts=true&useOraclePrepareExecute=true.