Skip to content

[WIP]: master: add v8.5.5 info #21167

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

Open
qiancai wants to merge 3 commits into
base: master
Choose a base branch
from
+4 −4
Open

[WIP]: master: add v8.5.5 info #21167

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
3 commits
Select commit Hold shift + click to select a range
a9c7c8b
Update ticdc-csv.md
qiancai Dec 3, 2025
60cb64d
Update br-pitr-manual.md
qiancai Dec 12, 2025
e46b940
Update system-variables.md
qiancai Dec 12, 2025
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
4 changes: 2 additions & 2 deletions br/br-pitr-manual.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -586,7 +586,7 @@ tiup br restore point --pd="${PD_IP}:2379" \

### 进行中的日志备份与快照恢复的兼容性

从 v9.0.0 开始，当存在日志备份任务时，如果**同时满足**以下条件，则可以正常进行快照恢复 (`br restore [full|database|table]`)，并且恢复的数据可以被进行中的日志备份（下称“日志备份”）正常记录：
从 v8.5.5 和 v9.0.0 开始，当存在日志备份任务时，如果**同时满足**以下条件，则可以正常进行快照恢复 (`br restore [full|database|table]`)，并且恢复的数据可以被进行中的日志备份（下称“日志备份”）正常记录：

- 执行备份恢复操作的节点需要同时具备以下权限：
- 对备份来源外部存储的读取权限，用于执行快照恢复
Expand All @@ -604,7 +604,7 @@ tiup br restore point --pd="${PD_IP}:2379" \

> **注意：**
>
> 当恢复记录了快照（全量）恢复数据的日志备份时，需要使用 v9.0.0 及之后版本的 BR，否则可能导致记录下来的全量恢复数据无法被恢复。
> 当恢复记录了快照（全量）恢复数据的日志备份时，需要使用 v8.5.5 或 v9.0.0 及之后版本的 BR，否则可能导致记录下来的全量恢复数据无法被恢复。

### 进行中的日志备份与 PITR 操作的兼容性

Expand Down
2 changes: 1 addition & 1 deletion system-variables.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -1278,7 +1278,7 @@ mysql> SELECT job_info FROM mysql.analyze_jobs ORDER BY end_time DESC LIMIT 1;
- 这个变量用于控制是否开启[自动捕获绑定](/sql-plan-management.md#自动捕获绑定-baseline-capturing)功能。该功能依赖 Statement Summary，因此在使用自动绑定之前需打开 Statement Summary 开关。
- 开启该功能后会定期遍历一次 Statement Summary 中的历史 SQL 语句，并为至少出现两次的 SQL 语句自动创建绑定。

### `tidb_cb_pd_metadata_error_rate_threshold_ratio` <span class="version-mark">从 v9.0.0 版本开始引入</span>
### `tidb_cb_pd_metadata_error_rate_threshold_ratio` <span class="version-mark">从 v8.5.5 和 v9.0.0 版本开始引入</span>

- 作用域：GLOBAL
- 是否持久化到集群：是
Expand Down
2 changes: 1 addition & 1 deletion ticdc/ticdc-csv.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -29,7 +29,7 @@ null = '\N'
include-commit-ts = true
binary-encoding-method = 'base64'
output-old-value = false
output-field-header = false # 从 v9.0.0 开始引入
output-field-header = false # 从 v8.5.5 和 v9.0.0 开始引入
```

## 数据保存的事务性约束
Expand Down