Release Note 2.0.10

[xiaokang]

Previous Release Note 2.0.9

Thanks to our community users and developers, about 83 improvements and bug fixes have been made in Doris 2.0.10 version.

1 Behavior change

N/A

2 New features

N/A

3 Improvement and optimizations

• This enhancement introduces the read_only and super_read_only variables to the database system, ensuring compatibility with MySQL's read-only modes.
• When the check status is not IO_ERROR, the disk path should not be added to the broken list. This ensures that only disks with actual I/O errors are marked as broken.
• When performing a Create Table As Select (CTAS) operation from an external table, convert the varchar column to string type.
• Support mapping Paimon column type "Row" to Doris type "Struct"
• Choose disk tolerate with little skew when creating tablet
• Write editlog for set replica drop to avoid confusing status on follower FE
• Make the schema change memory space adaptive to avoid memory over limit
• Inverted index 'unicode' tokenizer supports configuration to exclude stop words

See the complete list of improvements and bug fixes on github .

Big Thanks

Thanks all who contribute to this release:

@airborne12
@BePPPower
@ByteYue
@CalvinKirs
@cambyzju
@csun5285
@dataroaring
@deardeng
@DongLiang-0
@eldenmoon
@felixwluo
@HappenLee
@hubgeter
@jackwener
@kaijchen
@kaka11chen
@Lchangliang
@liaoxin01
@LiBinfeng-01
@luennng
@morningman
@morrySnow
@Mryange
@nextdreamblue
@qidaye
@starocean999
@suxiaogang223
@SWJTU-ZhangLei
@w41ter
@xiaokang
@xy720
@yujun777
@Yukang-Lian
@zhangstar333
@zxealous
@zy-kkk
@zzzxl1993

[xiaokang]

中文版本

1 行为变更

无

2 新功能

无

3 改进和优化

• 增加了read_only和super_read_only变量以保持和MySQL兼容
• 仅在IO_ERROR的错误才把数据目录加入broken list，防止fd超限等错误导致误加入
• 基于外表CTAS创建新表时，把varchar类型转成string类型
• 支持把Paimon的Row类型映射成Doris的Struct类型
• 在创建tablet选择数据盘时，允许存在少量的倾斜
• 对set replica drop命令记录editlog，以防止在follower节点执行命令后，其状态显示不正确
• schema change 内存自适应避免内存超限
• 倒排索引中 unicode 分词器可以配置不使用停用词