Release 3.21.02.0 #2602

yanhuqing666 started this conversation in Release Notes

yanhuqing666
Apr 20, 2021
Maintainer

Release Notes:

We have released a new version 3.21.02.0.

Firstly, we must thanks to the following people for their contributions to our community：@evangoe, @Neil-Zhou, @314926481, @ClippedWings-renzy .

Features:

[[Improve] Support the general log #2409] Support the general log. More Detail,see general log.
[[Improve] Support sql statistics #2428] Support some sql statistics. More Detail,see sql statistic manager and tables.
[【Improve】 support server-side cursor #2387] Support server-side cursor. More Detail,see 4.4.3 Dble Flow.
[add new rwSplitMode instruction #2503] Add an new rwSplitMode. More Detail,see rwSplitMode.
[[Improve] JSON mode configuration takes effect #2386] Support JSON mode configuration for internal. If upgrade from the old version, you should know this.
[expect that we can show and resume other dble paused dataNode in cluster #1830]Suport show and resume other dble paused dataNode in cluster.
[inner-358: expect to provide "show dble_processlist" in server port #2351] Provide "show dble_processlist" in server port
[load data add batch mode #2595] Support batch mode for load data . More Detail,see load data batch mode.
[druid 1.2.x SQL Parser supports enhancements, upgrade from druid 1.1.4 to druid 1.2.3 #2594] Upgrude druid to version 1.2.3

Bug-fixes:

[In the same datahost, disable readHost first, then disable writeHost, report ERROR message, but disable is successful #1843] In the same datahost, disable readHost first, then disable writeHost, report ERROR message, but disable is successful.
[SlowQueryLog create ArrayIndexOutOfBoundsException and other problems #2497] SlowQueryLog create ArrayIndexOutOfBoundsException and other problems, thanks to @evangoe for reporting the bug.
[Can't use both show @@processlist and RwSplitService #2377]Can't use both show @@processlist and RwSplitService.
[and ... or statement running error #2199]and ... or statement running error.
[column after 'where' does not specify the table name，causes it to be issued to all nodes #2152] When the column after 'where' does not specify the table name，it will be routed to all nodes
[inner-722 shardingnode should be unique #2342]shardingNode should be unique in the table config
[inner-773：remove "/" and wrap in error report when reload config. #2366] Remove useless "/" in the error message when reloading config failed.
[3.20.07.0 Using Navicat to connect the library can not display the table bug #2105][使用Navicat数据库工具连接dble3.0版本无法连接 #2389] Using Navicat to connect the library can not display the table, thanks to @314926481 and @Neil-Zhou for reporting the bug.
[occur error "Union field merge error, field not found:W.SCANNUM" #2034] Occur error "Union field merge error, field not found:W.SCANNUM" , thanks to @314926481 and @ClippedWings-renzy for reporting the bug.
[inner DMP-6115 fixed: show which file cause error in dry-run. #2324] Show which file causes the error in dry-run.

Breaking backward compatibility:

[[Improve] JSON mode configuration takes effect #2386] Support JSON mode configuration for dble internal.
[[incompatible] start with version 3.21.02.0 bootstrap.cnf homePath requires explicit variable declarations #2598] homePath must to be configured in bootstrap.cnf.

If upgrade from the old version to this, you must know this.

发行说明：

我们发布了新版本 3.21.02.0。

首先，我们必须感谢以下人士对我们社区的贡献：@evangoe, @Neil-Zhou, @314926481, @ClippedWings-renzy .

特性：

[[Improve] Support the general log #2409] 支持general log. 使用详情请见general log.
[[Improve] Support sql statistics #2428] 支持一些sql统计信息. 更多详细信息，请参见sql statistic manager 和tables.
[【Improve】 support server-side cursor #2387] 支持服务器端游标。更多详细信息，请参见4.4.3 Dble Flow.
[add new rwSplitMode instruction #2503] 添加新的rwSplitMode。更多详细信息，请参见rwSplitMode.
[[Improve] JSON mode configuration takes effect #2386] 支持dble内部的JSON模式配置。如果是从旧版本升级，您应该知道升级注意.
[expect that we can show and resume other dble paused dataNode in cluster #1830] 支持展示并恢复群集中其他已暂停的dataNode。
[inner-358: expect to provide "show dble_processlist" in server port #2351] Provide "show dble_processlist" in server port
[load data add batch mode #2595] 支持load data批处理。更多详细信息，请参见load data批处理模式.
[druid 1.2.x SQL Parser supports enhancements, upgrade from druid 1.1.4 to druid 1.2.3 #2594] 将druid升级至1.2.3版

缺陷修复:

[In the same datahost, disable readHost first, then disable writeHost, report ERROR message, but disable is successful #1843] 在同一数据主机中，先禁用readHost，然后禁用writeHost，报告ERROR消息，但实际禁用成功。
[SlowQueryLog create ArrayIndexOutOfBoundsException and other problems #2497] 慢查询日志的ArrayIndexOutOfBoundsException和其他问题，这要感谢@evangoe报告了该错误。
[Can't use both show @@processlist and RwSplitService #2377] 不能同时使用show @@ processlist和RwSplitService。
[and ... or statement running error #2199] and ... or statement 运行错误。
[column after 'where' does not specify the table name，causes it to be issued to all nodes #2152] 如果“ where”之后的列未指定表名，它将被路由到所有节点。
[inner-722 shardingnode should be unique #2342] shardingNode 在表配置中应该是唯一的。
[inner-773：remove "/" and wrap in error report when reload config. #2366] 重新加载配置失败时，在错误消息中删除无用的“ /”。
[3.20.07.0 Using Navicat to connect the library can not display the table bug #2105][使用Navicat数据库工具连接dble3.0版本无法连接 #2389] 使用Navicat连接库无法显示表，感谢@314926481和@Neil-Zhou报告了该错误。
[occur error "Union field merge error, field not found:W.SCANNUM" #2034] 发生错误"Union field merge error, field not found:W.SCANNUM", 感谢 @ClippedWings-renzy 报告了该错误。
[inner DMP-6115 fixed: show which file cause error in dry-run. #2324] 显示哪个文件导致dry-run出错了。

打破向后兼容性：

[[Improve] JSON mode configuration takes effect #2386] 支持内部的JSON模式配置。
[[incompatible] start with version 3.21.02.0 bootstrap.cnf homePath requires explicit variable declarations #2598] homePath 必须在bootstrap.cnf中进行显示配置。

如果您从旧版本升级升级到本版本，您应该先阅读版本变更的内容.

This discussion was created from the release Release 3.21.02.0.

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