DBLE 2.19.01.0 Release: New Features, Optimizations, and Bug Fixes
The DBLE 2.19.01.0 release introduces Docker images, new management commands, attribute enhancements, query plan optimizations, and numerous bug fixes—including issues with RocksDB cache, complex joins, and global table handling—while providing download links, documentation, and community support resources.
On March 1, the enterprise‑grade open‑source distributed middleware DBLE released version 2.19.01.0 . The update adds Docker images, a new show @@processlist management command, and other features, while optimizing reload, query planning, auto‑increment columns, and fixing complex join issues.
Download the latest DBLE package at https://github.com/actiontech/dble/releases . The release includes a Chinese PDF guide and online documentation at https://actiontech.github.io/dble-docs-cn/ . Community technical support is available via QQ group 669663113.
Features
Add attribute incrementColumn for table #933.
Add new command show @@processlist for manager user #975.
Add filter for reload @metadata #944.
Add gc.log in default wrapper.conf.
Add version attribute in rule/schema/server.xml to identify config version.
Provide quick start with Docker and Docker‑Compose.
Do not reload all metadata when reloading config/config_all if unnecessary #946.
Improve primary‑key routing result cache #947.
Add command to view in‑processing DDL #887.
Optimize query execution plans for global table joins #915, #801.
Report error when set value is not in candidate values #576.
Bug‑fixes
RocksDB route cache does not work #1029.
Errors with nested subqueries using NOT IN on global tables #1030.
Do not check "port" in myid.properties when using Zookeeper #1025.
SubQuery execution errors in complex queries #1027.
NPE when joining nosharding and sharding tables #1023.
Errors when two sharding tables cross databases #968.
Lost judgment conditions in global table subqueries #1022.
Cleaning registered keys in ZK may delete dnindex.properties #991.
NPE during stability testing with Dble + LVS #954.
ConcurrentModificationException on reload @@config_all #984.
Incorrect decoder for non‑ASCII sharding column (utf8mb4) #995.
Errors with cross‑database join syntax containing global tables #965.
Various SQL syntax and execution errors (e.g., CONVERT, TRIM, duplicate columns, view creation) #982, #931, #920, etc.
Breaking backward compatibility
Using non‑ASCII sharding columns with utf8mb4 now requires data re‑sharding #995.
Reload config will no longer reload metadata of all tables #946.
For a detailed analysis, read the original release notes (link provided) and follow the quick‑start guides, configuration tutorials, and community resources listed above.
Signed-in readers can open the original source through BestHub's protected redirect.
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