Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

add 6.5.2 release notes #13700

Merged
merged 20 commits into from
Apr 21, 2023
Merged

add 6.5.2 release notes #13700

Changes from 5 commits
Commits
Show all changes
20 commits
Select commit Hold shift + click to select a range
405fb5e
add 6.5.2 release notes (dup)
ran-huang Apr 14, 2023
7b14153
remove duplicated notes
ran-huang Apr 14, 2023
414b651
Update releases/release-6.5.2.md
zanmato1984 Apr 17, 2023
d1e7af8
Update releases/release-6.5.2.md
zanmato1984 Apr 17, 2023
3f1645d
Apply suggestions from code review
flowbehappy Apr 18, 2023
91b5e10
Apply suggestions from code review
ran-huang Apr 18, 2023
8b6d4c9
Apply suggestions from code review
ran-huang Apr 18, 2023
94c4c97
refine descriptions for TiFlash improvements/bug fixes
qiancai Apr 19, 2023
9c90d52
Apply suggestions from code review
hfxsd Apr 19, 2023
0034257
Apply suggestions from code review
hfxsd Apr 19, 2023
0388f7e
Apply suggestions from code review
hfxsd Apr 19, 2023
b0c9a77
Apply suggestions from code review
ran-huang Apr 19, 2023
93ea16f
Update releases/release-6.5.2.md
flowbehappy Apr 19, 2023
b8c4d28
Update releases/release-6.5.2.md
ran-huang Apr 20, 2023
e35bc37
Update releases/release-6.5.2.md
ran-huang Apr 20, 2023
c94179c
Apply suggestions from code review
ran-huang Apr 20, 2023
bf13dc6
Apply suggestions from code review
ran-huang Apr 20, 2023
caddb78
cleanup
ran-huang Apr 20, 2023
572471a
Update releases/release-6.5.2.md
ran-huang Apr 21, 2023
c48213c
Update releases/release-6.5.2.md
ran-huang Apr 21, 2023
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
122 changes: 122 additions & 0 deletions releases/release-6.5.2.md
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,122 @@
---
title: TiDB 6.5.2 Release Notes
summary: 了解 TiDB 6.5.2 版本的兼容性变更、改进提升，以及错误修复。
---

# TiDB 6.5.2 Release Notes

发版日期：2023 年 x 月 x 日

TiDB 版本：6.5.2

试用链接：[快速体验](https://docs.pingcap.com/zh/tidb/v6.5/quick-start-with-tidb) | [生产部署](https://docs.pingcap.com/zh/tidb/v6.5/production-deployment-using-tiup) | [下载离线包](https://cn.pingcap.com/product-community/?version=v6.5.2#version-list)

## 兼容性变更

- (dup): release-7.0.0.md > # 行为变更 * TiCDC 修复了 Avro 编码 `FLOAT` 类型数据错误的问题 [#8490](https://github.com/pingcap/tiflow/issues/8490) @[3AceShowHand](https://github.com/3AceShowHand)

在升级 TiCDC 集群到 v6.5.2 或更高的 v6.5.x 版本时，如果使用 Avro 同步的表包含 `FLOAT` 类型数据，请在升级前手动调整 Confluent Schema Registry 的兼容性策略为 `None`，使 changefeed 能够成功更新 schema。否则，在升级之后 changefeed 将无法更新 schema 并进入错误状态。

## 改进提升

+ TiDB

- (dup): release-6.1.6.md > 提升改进> TiDB - Prepared Plan Cache 支持缓存 BatchPointGet 计划 [#42125](https://github.com/pingcap/tidb/issues/42125) @[qw4990](https://github.com/qw4990)
- (dup): release-7.0.0.md > 改进提升> TiDB - Index Join 支持更多的 SQL 格式 [#40505](https://github.com/pingcap/tidb/issues/40505) @[Yisaer](https://github.com/Yisaer)
zanmato1984 marked this conversation as resolved.
Show resolved Hide resolved
zanmato1984 marked this conversation as resolved.
Show resolved Hide resolved
- 将 Index Merge Reader 中的一些 Log 等级从 Info 降低为 Debug [#41949](https://github.com/pingcap/tidb/issues/41949) @[yibin87](https://github.com/yibin87)
hfxsd marked this conversation as resolved.
Show resolved Hide resolved

ran-huang marked this conversation as resolved.
Show resolved Hide resolved
+ TiKV

- note 1
- note 2

+ PD

- note 1
- note 2

+ TiFlash

- 减少了 TiFlash 存储引擎的在读过程中的任务调度的 CPU 消耗 [#6495](https://github.com/pingcap/tiflash/issues/6495) @[JinheLin](https://github.com/JinheLin)
- 显著提升默认参数下用 BR、Lightning 往 TiFlash 导入数据的性能 [#7272](https://github.com/pingcap/tiflash/issues/7272) @[breezewish](https://github.com/breezewish)
qiancai marked this conversation as resolved.
Show resolved Hide resolved
- note 2
ran-huang marked this conversation as resolved.
Show resolved Hide resolved

+ Tools

+ Backup & Restore (BR)

- note 1

+ TiCDC

ran-huang marked this conversation as resolved.
Show resolved Hide resolved
- (dup): release-7.0.0.md > 改进提升> Tools> TiCDC - 支持在 redo applier 中拆分事务以提升 apply 吞吐，降低灾难场景的 RTO [#8318](https://github.com/pingcap/tiflow/issues/8318) @[CharlesCheung96](https://github.com/CharlesCheung96)
- (dup): release-7.0.0.md > 改进提升> Tools> TiCDC - 支持在 redo log 里 apply DDL 事件 [#8361](https://github.com/pingcap/tiflow/issues/8361) @[CharlesCheung96](https://github.com/CharlesCheung96)

+ TiDB Data Migration (DM)

- note 1

+ TiDB Lightning

- (dup): release-6.6.0.md > 改进提升> Tools> TiDB Lightning - 支持导入带有 BOM header 的 CSV 数据文件 [#40744](https://github.com/pingcap/tidb/issues/40744) @[dsdashun](https://github.com/dsdashun)

+ Dumpling

## 错误修复

+ TiDB

hfxsd marked this conversation as resolved.
Show resolved Hide resolved
- (dup): release-6.1.6.md > Bug 修复> TiDB - 修复了生成执行计划过程中，因为获取的 InfoSchema 不一致而导致的 TiDB panic 的问题 [#41622](https://github.com/pingcap/tidb/issues/41622) [@tiancaiamao](https://github.com/tiancaiamao)
hfxsd marked this conversation as resolved.
Show resolved Hide resolved
- (dup): release-6.1.6.md > Bug 修复> TiDB - 修复了使用 DDL 修改浮点类型时，保持长度不变且减少小数位后，旧数据仍然保持原样的问题 [#41281](https://github.com/pingcap/tidb/issues/41281) [@zimulala](https://github.com/zimulala)
- (dup): release-6.1.6.md > Bug 修复> TiDB - 修复事务内执行 PointUpdate 之后，`SELECT` 结果不正确的问题 [#28011](https://github.com/pingcap/tidb/issues/28011) @[zyguan](https://github.com/zyguan)
- (dup): release-6.1.6.md > Bug 修复> TiDB - 修复在使用 Cursor Fetch 且在 Execute、Fetch、Close 之间运行其它语句后，Fetch 与 Close 命令可能会返回错误结果或造成 TiDB Panic 的问题 [#40094](https://github.com/pingcap/tidb/issues/40094) [@YangKeao](https://github.com/YangKeao)
hfxsd marked this conversation as resolved.
Show resolved Hide resolved
- (dup): release-7.0.0.md > 错误修复> TiDB - 修复 `INSERT IGNORE` 和 `REPLACE` 语句对不修改 value 的 key 没有加锁的问题 [#42121](https://github.com/pingcap/tidb/issues/42121) @[zyguan](https://github.com/zyguan)
- (dup): release-7.0.0.md > 错误修复> TiDB - 修复 TiFlash 执行中遇到生成列会报错的问题 [#40663](https://github.com/pingcap/tidb/issues/40663) @[guo-shaoge](https://github.com/guo-shaoge)
- (dup): release-7.0.0.md > 错误修复> TiDB - 修复当同一个 SQL 中出现多个不同的分区表时，TiDB 可能执行得到错误结果的问题 [#42135](https://github.com/pingcap/tidb/issues/42135) @[mjonss](https://github.com/mjonss)
- (dup): release-7.0.0.md > 错误修复> TiDB - 修复在开启 Prepared Plan Cache 的情况下，索引全表扫可能会报错的问题 [#42150](https://github.com/pingcap/tidb/issues/42150) @[fzzf678](https://github.com/fzzf678)
- (dup): release-7.0.0.md > 错误修复> TiDB - 修复在开启 Prepared Plan Cache 时 Index Merge 可能得到错误结果的问题 [#41828](https://github.com/pingcap/tidb/issues/41828) @[qw4990](https://github.com/qw4990)
- 修复全局内存控制可能 Kill 内存使用量小于 `tidb_server_memory_limit_sess_min_size` 的 SQL 的问题 [#42662](https://github.com/pingcap/tidb/issues/41828) @[XuHuaiyu](https://github.com/XuHuaiyu)
hfxsd marked this conversation as resolved.
Show resolved Hide resolved
- 修复分区表动态裁剪模式下 Index Join 可能发生 Panic 的问题 [#40596](https://github.com/pingcap/tidb/issues/40596) @[tiancaiamao](https://github.com/tiancaiamao)
hfxsd marked this conversation as resolved.
Show resolved Hide resolved

zanmato1984 marked this conversation as resolved.
Show resolved Hide resolved
zanmato1984 marked this conversation as resolved.
Show resolved Hide resolved
+ TiKV

- note 1
ran-huang marked this conversation as resolved.
Show resolved Hide resolved

+ PD

- (dup): release-6.1.4.md > Bug 修复> PD - 修复 PD 可能会非预期地向 Region 添加多个 Learner 的问题 [#5786](https://github.com/tikv/pd/issues/5786) @[HunDunDM](https://github.com/HunDunDM)
- (dup): release-7.0.0.md > 错误修复> PD - 修复了切换 Placement Rule 时可能存在的 leader 分布不均衡的问题 [#6195](https://github.com/tikv/pd/issues/6195) @[bufferflies](https://github.com/bufferflies)

+ TiFlash

- (dup): release-6.1.6.md > Bug 修复> TiFlash - 修复 TiFlash 无法识别生成列的问题 [#6801](https://github.com/pingcap/tiflash/issues/6801) @[guo-shaoge](https://github.com/guo-shaoge)
- (dup): release-7.0.0.md > 错误修复> TiFlash - 修复了 Decimal 除法在某些情况下最后一位未进位的问题 [#7022](https://github.com/pingcap/tiflash/issues/7022) @[LittleFall](https://github.com/LittleFall)
- (dup): release-7.0.0.md > 错误修复> TiFlash - 修复了 Decimal 转换在某些情况下进位错误的问题 [#6994](https://github.com/pingcap/tiflash/issues/6994) @[windtalker](https://github.com/windtalker)
- (dup): release-7.0.0.md > 错误修复> TiFlash - 修复了开启 new collation 后 TopN/Sort 算子结果可能出错的问题 [#6807](https://github.com/pingcap/tiflash/issues/6807) @[xzhangxian1008](https://github.com/xzhangxian1008)
- 修复由于不兼容 CDC 导致 TiFlash 进程失败的问题 [#7212](https://github.com/pingcap/tiflash/issues/7212) @[hongyunyan](https://github.com/hongyunyan)
qiancai marked this conversation as resolved.
Show resolved Hide resolved

flowbehappy marked this conversation as resolved.
Show resolved Hide resolved
+ Tools

+ Backup & Restore (BR)

- (dup): release-6.6.0.md > 错误修复> Tools> Backup & Restore (BR) - 修复当 TiDB 集群不存在 PITR 备份任务时，`resolve lock` 频率过高的问题 [#40759](https://github.com/pingcap/tidb/issues/40759) @[joccau](https://github.com/joccau)
- (dup): release-7.0.0.md > 错误修复> Tools> Backup & Restore (BR) - 修复了在 PITR 恢复过程中等待 split Region 重试的时间不足的问题 [#42001](https://github.com/pingcap/tidb/issues/42001) @[joccau](https://github.com/joccau)

+ TiCDC

- (dup): release-6.1.6.md > Bug 修复> Tools> TiCDC - 修复 `db sorter` 使用内存时未受 `cgroup memory limit` 限制的问题 [#8588](https://github.com/pingcap/tiflow/issues/8588) @[amyangfei](https://github.com/amyangfei)
ran-huang marked this conversation as resolved.
Show resolved Hide resolved
- (dup): release-6.1.6.md > Bug 修复> Tools> TiCDC - 修复同步数据时由于 `UPDATE` 和 `INSERT` 语句乱序可能导致 `Duplicate entry` 错误的问题 [#8597](https://github.com/pingcap/tiflow/issues/8597) @[sdojjy](https://github.com/sojjy)
- (dup): release-6.1.6.md > Bug 修复> Tools> TiCDC - 修复由于 PD 和 TiCDC 之间的网络隔离引起 TiCDC 程序异常退出的问题 [#8562](https://github.com/pingcap/tiflow/issues/8562) @[overvenus](https://github.com/overvenus)
- (dup): release-7.0.0.md > 错误修复> Tools> TiCDC - 修复了 Kubernetes 上不能平滑升级 (graceful upgrade) TiCDC 集群的问题 [#8484](https://github.com/pingcap/tiflow/issues/8484) @[overvenus](https://github.com/overvenus)
- (dup): release-7.0.0.md > 错误修复> Tools> TiCDC - 修复了当所有 Kafka server 不可访问时会导致 TiCDC server panic 的问题 [#8523](https://github.com/pingcap/tiflow/issues/8523) @[3AceShowHand](https://github.com/3AceShowHand)
- (dup): release-7.0.0.md > 错误修复> Tools> TiCDC - 修复了重启 changefeed 可能导致数据丢失或者 checkpoint 无法推进的问题 [#8242](https://github.com/pingcap/tiflow/issues/8242) @[overvenus](https://github.com/overvenus)

+ TiDB Data Migration (DM)

- note 1

+ TiDB Lightning

- note 1

+ Dumpling