Release 2.5.15 · StarRocks/starrocks

Release date: November 29, 2023

Improvements

Added slow request logs to track slow requests. #33908
Optimized the performance of using Spark Load to read Parquet and ORC files when there are a large number of files. #34787
Optimized the performance of some Bitmap-related operations, including:
Optimized nested loop joins. #34804 #35003
Optimized the bitmap_xor function. #34069
Supports Copy on Write to optimize Bitmap performance and reduce memory consumption. #34047

The FE dynamic parameter enable_new_publish_mechanism is changed to a static parameter. You must restart the FE after you modify the parameter settings. #35338

If a filtering condition is specified in a Broker Load job, BEs may crash during the data loading in certain circumstances. #29832
Failures in replaying replica operations may cause FEs to crash. #32295
Setting the FE parameter recover_with_empty_tablet to true may cause FEs to crash. #33071
The error "get_applied_rowsets failed, tablet updates is in error state: tablet:18849 actual row size changed after compaction" is returned for queries. #33246
A query that contains a window function may cause BEs to crash. #33671
Running show proc '/statistic' may cause a deadlock. #34237
Errors may be thrown if large amounts of data are loaded into a Primary Key table with persistent index enabled. #34566
After StarRocks is upgraded from v2.4 or earlier to a later version, compaction scores may rise unexpectedly. #34618
If INFORMATION_SCHEMA is queried by using the database driver MariaDB ODBC, the CATALOG_NAME column returned in the schemata view holds only null values. #34627
If schema changes are being executed while a Stream Load job is in the PREPARD state, a portion of the source data to be loaded by the job is lost. #34381
Including two or more slashes (/) at the end of the HDFS storage path causes the backup and restore of the data from HDFS to fail. #34601
Running a loading task or a query may cause the FEs to hang. #34569