ODP Community Edition V4.0.0|V4.2.3|OceanBase Database Proxy |docs|OceanBase Documentations

V4.0.0

The session information synchronization mechanism is supported.
Tenant-level CPU resource isolation is supported in shared proxy mode in the public cloud.
Random routing is supported.
Tenant isolation is supported.
OB_MYSQL_COM_STMT_RESET is supported.
Primary zone-based routing is supported.
Fast failure of request detection is supported, which applies only to proof of concept (POC).
Prepared statements are supported.
OB_MYSQL_COM_RESET_CONNECTION is supported.
Custom delimiters are supported for cluster IDs in the connection string.
A remote IP address can be used as a virtual IP address in non-Alibaba Cloud environments.
The allowlist strategy is adjusted. ODP no longer uses the IP address passed from the client but directly detects the peer IP address by using TCP.

The max_used_connections parameter is added to reduce the recording of logs when the client is disconnected.
The __all_dummy table can be refreshed when the locality is changed.
Attempts to insert data into multiple rows of the configuration table are blocked.
Multi-related values are added to the handshake capability, to improve compatibility with MySQL 8.0.
Some duplicate logs are optimized.
The allowlist is optimized. Disconnection occurs if ODP attempts to detect the peer IP address through telnet.

Fixed the issue where a memory error occurs because abnormal partition information is obtained from an internal table.
Fixed the issue where the ref_cursor function returns the fetch out of sequence error when the OB_MYSQL_COM_STMT_EXECUTE protocol is used.
Fixed the issue where the enable_client_ip_checkout parameter does not take effect when the connect attr parameter is specified.
Fixed the issue where the SQL execution time exceeds 40 ms if a single SQL statement is sent multiple times.
Fixed performance issues caused by random partitioning.
Fixed the issue where disconnection occurs when the changUser command is executed by using a non-SSL protocol.
Fixed the issue where directories cannot be accurately determined when readdir is used in file systems such as XFS.
Fixed the issue where ODP does not roll back to the original RootService list when it fails to start using the RootService list for three times.
Fixed the issue where "user" and "value" are used as keywords in lexical parsing.
Fixed the issue where SSL cannot be used for the link between the client and ODP.
Fixed the issue where ODP actively disconnects from the client if the original connection receives the OB_MYSQL_COM_PING command during a hot restart.