OBLOADER & OBDUMPER V4.3.4.1

OBLOADER & OBDUMPER V4.3.4.1 released in September is designed to fix critical issues reported by users when using OBLOADER & OBDUMPER V4.3.4 and earlier versions.

New features

Improved user experience. In MySQL compatible mode of OceanBase Database, the object name matching in the control file now supports case-insensitive matching, enhancing configuration flexibility.

Bug fixes

• Fixed the issue where a NullPointerException occurred when importing multiple tables from a CSV file.

• Fixed the issue where the --default-date parameter in OBLOADER & OBDUMPER V4.x was not backward compatible with the deprecated parameter in the MySQL compatible mode of OceanBase Database.

• Fixed the issue where appending an extra string at the end of the exported file occurred when the position function was used in the control file.

• Fixed the issue where data was misaligned when the position function was used after the constant function in the control file.

• Fixed the issue where the maximum open cursors exceeded error occurred during export and optimized cursor leaks in scenarios with a large number of small tables.

• Fixed the issue where line splitting failed when the line terminator and column delimiter were adjacent during import of a CUT file.

  The issue occurred because the --trail-delimiter parameter incorrectly identified the line terminator as an empty field at the end, leading to the deletion of valid fields.

• Fixed the issue where parsing ambiguity occurred when importing CSV files without delimiters, where empty strings were incorrectly parsed as NULL values.

• Fixed the issue where CPU usage abnormally increased during high-concurrency imports.

  The issue occurred because the data read speed exceeded the database write speed, causing the buffer to fill up. Subsequent read threads entered a busy wait state, continuously occupying CPU resources.