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add release note for v7.5.1 #16660

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merged 36 commits into from
Feb 29, 2024
Merged

add release note for v7.5.1 #16660

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57cf95d
add release note for v7.5.1
Oreoxmt Feb 21, 2024
9aa9fe0
update TiCDC changefeed and resource control
Oreoxmt Feb 21, 2024
021a283
add bug fix > TiDB
Oreoxmt Feb 22, 2024
0a8e3a7
remove duplicate notes
Oreoxmt Feb 22, 2024
b72a1ff
update links
Oreoxmt Feb 22, 2024
630e0df
rename
Oreoxmt Feb 22, 2024
b81b646
update version
Oreoxmt Feb 22, 2024
ac7e632
add sql-infra notes
xhebox Feb 23, 2024
0568537
add sql-infra notes
xhebox Feb 23, 2024
b32f122
remove two cdc parameters introduced in v7.5.0
qiancai Feb 23, 2024
5d4ae34
add BR part
Oreoxmt Feb 23, 2024
74e7ecb
add TiFlash part
Oreoxmt Feb 23, 2024
7f9d98c
add TiFlash part
Oreoxmt Feb 23, 2024
8869820
add TiDB/execution
Oreoxmt Feb 23, 2024
24fce0e
add TiFlash logger.level
Oreoxmt Feb 23, 2024
0ae91a0
make ci happy
Oreoxmt Feb 23, 2024
4b4af1e
add TiDB transaction
Oreoxmt Feb 23, 2024
92c3d9d
add TW ID
Oreoxmt Feb 23, 2024
e8d1a59
Apply suggestions from code review
flowbehappy Feb 23, 2024
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Oreoxmt Feb 26, 2024
1ea41bc
update
Oreoxmt Feb 26, 2024
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Oreoxmt Feb 26, 2024
99271bf
update consistent.flush-concurrency
Oreoxmt Feb 26, 2024
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qiancai Feb 26, 2024
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qiancai Feb 26, 2024
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hfxsd Feb 26, 2024
ecd1a53
Update releases/release-7.5.1.md
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- remove dup note, comments, and placeholders
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Oreoxmt Feb 29, 2024
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add TW ID
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@Oreoxmt
Oreoxmt committed Feb 23, 2024
commit 92c3d9d0c04791fde9a692ad724efc9d4764cbbd
61 changes: 25 additions & 36 deletions releases/release-7.5.1.md
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Preview: https://pingcap-docsite-preview-git-751-oreoxmt.vercel.app/zh/tidb/stable/release-7.5.1

Original file line number Diff line number Diff line change
Expand Up @@ -13,6 +13,8 @@ TiDB 版本：v7.5.1

## 兼容性变更

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<!-- tw:@Oreoxmt (2) -->

- 为减少日志打印的开销，TiFlash 配置项 `logger.level` 默认值由 `"debug"` 改为 `"info"` [#8641](https://github.com/pingcap/tiflash/issues/8641) @[JaySon-Huang](https://github.com/JaySon-Huang)
- (dup): release-6.5.8.md > 兼容性变更 - 新增 TiKV 配置项 [`gc.num-threads`](https://docs.pingcap.com/zh/tidb/v7.5/tikv-configuration-file#num-threads-从-v658-和-v751-版本开始引入)，用于设置当 `enable-compaction-filter` 为 `false` 时 GC 的线程个数 [#16101](https://github.com/tikv/tikv/issues/16101) @[tonyxuqqi](https://github.com/tonyxuqqi)
- TiCDC Changefeed 新增以下配置项：
Expand All @@ -22,10 +24,8 @@ TiDB 版本：v7.5.1
## 改进提升

+ TiDB

<!-- tw:@hfxsd (1) -->
- 在 ddl schema reload 中使用 kv timeout 特性降低 meta region leader 读不可用对于集群影响 [#48124](https://github.com/pingcap/tidb/issues/48124) @[cfzjywxk](https://github.com/cfzjywxk)
hfxsd marked this conversation as resolved.
Show resolved Hide resolved
- note [#issue](https://github.com/pingcap/tidb/issues/${issue-id}) @[贡献者 GitHub ID](https://github.com/${github-id})
- note [#issue](https://github.com/pingcap/tidb/issues/${issue-id}) @[贡献者 GitHub ID](https://github.com/${github-id})
- (dup): release-7.6.0.md > # 可观测性 * 增强资源管控相关的观测性 [#49318](https://github.com/pingcap/tidb/issues/49318) @[glorv](https://github.com/glorv) @[bufferflies](https://github.com/bufferflies) @[nolouch](https://github.com/nolouch)

随着越来越多用户利用资源组对业务应用进行隔离，资源管控提供了更丰富的基于资源组的数据，协助你观测资源组负载、资源组设置，确保出现问题时能够快速发现并精准诊断。其中包括：
Expand Down Expand Up @@ -54,26 +54,22 @@ TiDB 版本：v7.5.1
- note [#issue](https://github.com/tikv/pd/issues/${issue-id}) @[贡献者 GitHub ID](https://github.com/${github-id})

+ TiFlash

- note [#issue](https://github.com/pingcap/tiflash/issues/${issue-id}) @[贡献者 GitHub ID](https://github.com/${github-id})
- note [#issue](https://github.com/pingcap/tiflash/issues/${issue-id}) @[贡献者 GitHub ID](https://github.com/${github-id})
<!-- tw:@hfxsd (1) -->
- 改进 RU 计算，使得 RU 值更稳定 [#8391](https://github.com/pingcap/tiflash/issues/8391) @[guo-shaoge(https://github.com/guo-shaoge)
hfxsd marked this conversation as resolved.
Show resolved Hide resolved
- (dup): release-6.5.7.md > 改进提升> TiFlash - 降低磁盘性能抖动对读取延迟的影响 [#8583](https://github.com/pingcap/tiflash/issues/8583) @[JaySon-Huang](https://github.com/JaySon-Huang)
- (dup): release-6.5.8.md > 改进提升> TiFlash - 减少后台数据 GC 任务对读、写任务延迟的影响 [#8650](https://github.com/pingcap/tiflash/issues/8650) @[JaySon-Huang](https://github.com/JaySon-Huang)
- 改进 RU 计算，使得 RU 值更稳定 [#8391](https://github.com/pingcap/tiflash/issues/8391) @[guo-shaoge(https://github.com/guo-shaoge)

+ Tools

+ Backup & Restore (BR)

- note [#issue](https://github.com/pingcap/tidb/issues/${issue-id}) @[贡献者 GitHub ID](https://github.com/${github-id})
- note [#issue](https://github.com/pingcap/tidb/issues/${issue-id}) @[贡献者 GitHub ID](https://github.com/${github-id})
- (dup): release-6.5.7.md > 改进提升> Tools> Backup & Restore (BR) - 提升了 `RESTORE` 语句在大数据量表场景下的建表性能 [#48301](https://github.com/pingcap/tidb/issues/48301) @[Leavrth](https://github.com/Leavrth)
- (dup): release-6.5.6.md > 改进提升> Tools> Backup & Restore (BR) - BR 支持通过设置 `merge-schedule-limit` 配置项为 `0` 来暂停 Region 合并 [#7148](https://github.com/tikv/pd/issues/7148) @[3pointer](https://github.com/3pointer)
- (dup): release-7.6.0.md > 改进提升> Tools> Backup & Restore (BR) - 重构 BR 异常处理机制，提高对未知错误的容忍度 [#47656](https://github.com/pingcap/tidb/issues/47656) @[3pointer](https://github.com/3pointer)
<!-- tw:@hfxsd (1) -->
- 使用更优的算法, 提升 restore 过程中 sst 文件合并的速度 [#50613](https://github.com/pingcap/tidb/issues/50613) @[Leavrth](https://github.com/Leavrth)
- 在 restore 过程中批量创建 database [#50767](https://github.com/pingcap/tidb/issues/50767) @[Leavrth](https://github.com/Leavrth)
- 在 restore 过程中批量 ingest sst 文件 [#16267](https://github.com/tikv/tikv/issues/16267) @[3pointer](https://github.com/3pointer)
- 在日志备份中, 在日志和 metrics 中, 增加打印拖慢 global checkpoint 推进的最慢的 region 的信息 [#51046](https://github.com/pingcap/tidb/issues/51046) @[YuJuncen](https://github.com/YuJuncen)
- (dup): release-6.5.7.md > 改进提升> Tools> Backup & Restore (BR) - 提升了 `RESTORE` 语句在大数据量表场景下的建表性能 [#48301](https://github.com/pingcap/tidb/issues/48301) @[Leavrth](https://github.com/Leavrth)
- (dup): release-6.5.6.md > 改进提升> Tools> Backup & Restore (BR) - BR 支持通过设置 `merge-schedule-limit` 配置项为 `0` 来暂停 Region 合并 [#7148](https://github.com/tikv/pd/issues/7148) @[3pointer](https://github.com/3pointer)
- (dup): release-7.6.0.md > 改进提升> Tools> Backup & Restore (BR) - 重构 BR 异常处理机制，提高对未知错误的容忍度 [#47656](https://github.com/pingcap/tidb/issues/47656) @[3pointer](https://github.com/3pointer)

+ TiCDC

Expand Down Expand Up @@ -111,11 +107,15 @@ TiDB 版本：v7.5.1
## 错误修复

+ TiDB

- note [#issue](https://github.com/pingcap/tidb/issues/${issue-id}) @[贡献者 GitHub ID](https://github.com/${github-id})
<!-- tw:@qiancai (8) -->
- 修复设置全局变量 `tidb_service_scope` 后配置失效的问题 [#49245](https://github.com/pingcap/tidb/issues/49245) @[ywqzzy](https://github.com/ywqzzy)
qiancai marked this conversation as resolved.
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- 修复开启压缩时，通讯协议无法处理大于等于 16M 的报文 [#47157](https://github.com/pingcap/tidb/issues/47157) @[dveeden](https://github.com/dveeden)
- 修复开启压缩时，通讯协议无法处理大于等于 16M 的报文 [#47161](https://github.com/pingcap/tidb/issues/47161) @[dveeden](https://github.com/dveeden)
- 修复开启压缩时，通讯协议无法处理大于等于 16M 的报文 [#47157](https://github.com/pingcap/tidb/issues/47157) [#47161](https://github.com/pingcap/tidb/issues/47161) @[dveeden](https://github.com/dveeden)
qiancai marked this conversation as resolved.
Show resolved Hide resolved
- 修复 `approx_percentile` 函数可能导致 TiDB panic 的问题 [#40463](https://github.com/pingcap/tidb/issues/40463) @[xzhangxian1008](https://github.com/xzhangxian1008)
- 修复 TiDB 在字符串函数参数为 `null` 常量时可能会隐式插入 `from_binary` 函数导致无法下推给 TiFlash 的问题 [#49526](https://github.com/pingcap/tidb/issues/49526) @[YangKeao](https://github.com/YangKeao)
qiancai marked this conversation as resolved.
Show resolved Hide resolved
- 修复 goroutine 在 hash join spill 失败时可能会泄露的问题 [#50841](https://github.com/pingcap/tidb/issues/50841) @[wshwsh12](https://github.com/wshwsh12)
qiancai marked this conversation as resolved.
Show resolved Hide resolved
- 修复 bit 类型在参与一些函数计算时可能会因为 decode 失败导致 query 出错的问题 [#49566](https://github.com/pingcap/tidb/issues/49566), [#50850](https://github.com/pingcap/tidb/issues/50850), [#50855](https://github.com/pingcap/tidb/issues/50855) @[jiyfhust](https://github.com/jiyfhust)
qiancai marked this conversation as resolved.
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- 修复 CTE query 内存超限时可能会导致 goroutine 泄露的问题 [#50337](https://github.com/pingcap/tidb/issues/50337) @[guo-shaoge](https://github.com/guo-shaoge)
qiancai marked this conversation as resolved.
Show resolved Hide resolved
- 修复在 TiFlash 延迟物化在有关联列时结果可能出错的问题 [#49241](https://github.com/pingcap/tidb/issues/49241), [#51204](https://github.com/pingcap/tidb/issues/51204) @[Lloyd-Pottiger](https://github.com/Lloyd-Pottiger)
qiancai marked this conversation as resolved.
Show resolved Hide resolved
- (dup): release-6.5.7.md > 错误修复> TiDB - 修复 `tidb_server_memory_limit` 导致内存长期压力较高时，TiDB CPU 利用率过高的问题 [#48741](https://github.com/pingcap/tidb/issues/48741) @[XuHuaiyu](https://github.com/XuHuaiyu)
- (dup): release-6.5.7.md > 错误修复> TiDB - 修复有依赖关系的两个 DDL 任务的完成时间顺序不正确的问题 [#49498](https://github.com/pingcap/tidb/issues/49498) @[tangenta](https://github.com/tangenta)
- (dup): release-7.6.0.md > 错误修复> TiDB - 修复不合法的优化器 hint 可能会导致合法 hint 不生效的问题 [#49308](https://github.com/pingcap/tidb/issues/49308) @[hawkingrei](https://github.com/hawkingrei)
Expand Down Expand Up @@ -165,18 +165,10 @@ TiDB 版本：v7.5.1
- (dup): release-7.6.0.md > 错误修复> TiDB - 修复更新 `tidb_mem_quota_query` 系统变量后执行 `ADMIN CHECK` 报错 `ERROR 8175` 的问题 [#49258](https://github.com/pingcap/tidb/issues/49258) @[tangenta](https://github.com/tangenta)
- (dup): release-6.5.7.md > 错误修复> TiDB - 修复构造统计信息时因为 Golang 隐式转换算法导致统计信息误差过大的问题 [#49801](https://github.com/pingcap/tidb/issues/49801) @[qw4990](https://github.com/qw4990)
- (dup): release-6.5.7.md > 错误修复> TiDB - 修复当 `tidb_max_chunk_size` 值较小时，包含 CTE 的查询出现 `runtime error: index out of range [32] with length 32` 错误的问题 [#48808](https://github.com/pingcap/tidb/issues/48808) @[guo-shaoge](https://github.com/guo-shaoge)
Oreoxmt marked this conversation as resolved.
Show resolved Hide resolved
- 修复 `approx_percentile` 函数可能导致 TiDB panic 的问题 [#40463](https://github.com/pingcap/tidb/issues/40463) @[xzhangxian1008](https://github.com/xzhangxian1008)
- 修复 TiDB 在字符串函数参数为 `null` 常量时可能会隐式插入 `from_binary` 函数导致无法下推给 TiFlash 的问题 [#49526](https://github.com/pingcap/tidb/issues/49526) @[YangKeao](https://github.com/YangKeao)
- 修复 goroutine 在 hash join spill 失败时可能会泄露的问题 [#50841](https://github.com/pingcap/tidb/issues/50841) @[wshwsh12](https://github.com/wshwsh12)
- 修复 bit 类型在参与一些函数计算时可能会因为 decode 失败导致 query 出错的问题 [#49566](https://github.com/pingcap/tidb/issues/49566), [#50850](https://github.com/pingcap/tidb/issues/50850), [#50855](https://github.com/pingcap/tidb/issues/50855) @[jiyfhust](https://github.com/jiyfhust)
- 修复 CTE query 内存超限时可能会导致 goroutine 泄露的问题 [#50337](https://github.com/pingcap/tidb/issues/50337) @[guo-shaoge](https://github.com/guo-shaoge)
- 修复在 TiFlash 延迟物化在有关联列时结果可能出错的问题 [#49241](https://github.com/pingcap/tidb/issues/49241), [#51204](https://github.com/pingcap/tidb/issues/51204) @[Lloyd-Pottiger](https://github.com/Lloyd-Pottiger)

+ TiKV

<!-- tw:@hfxsd (1) -->
- 修复开启 checksum 可能导致 TiKV panic 的问题 [#16371](https://github.com/tikv/tikv/issues/16371) @[cfzjywxk](github.com/cfzjywxk)
Oreoxmt marked this conversation as resolved.
Show resolved Hide resolved
- note [#issue](https://github.com/tikv/tikv/issues/${issue-id}) @[贡献者 GitHub ID](https://github.com/${github-id})
- note [#issue](https://github.com/tikv/tikv/issues/${issue-id}) @[贡献者 GitHub ID](https://github.com/${github-id})
- (dup): release-6.5.8.md > 错误修复> TiKV - 修复 gRPC threads 在检查 `is_shutdown` 时可能出现 panic 的问题 [#16236](https://github.com/tikv/tikv/issues/16236) @[pingyu](https://github.com/pingyu)
- (dup): release-6.5.8.md > 错误修复> TiKV - 修复巴西和埃及时区转换错误的问题 [#16220](https://github.com/tikv/tikv/issues/16220) @[overvenus](https://github.com/overvenus)
- (dup): release-7.1.3.md > 错误修复> TiKV - 修复 Titan `blob-run-mode` 无法在线更新的问题 [#15978](https://github.com/tikv/tikv/issues/15978) @[tonyxuqqi](https://github.com/tonyxuqqi)
Expand All @@ -199,12 +191,12 @@ TiDB 版本：v7.5.1
- (dup): release-6.5.8.md > 错误修复> PD - 修复使用 `pd-ctl` 查询没有 Leader 的 Region 时可能导致 PD panic 的问题 [#7630](https://github.com/tikv/pd/issues/7630) @[rleungx](https://github.com/rleungx)

+ TiFlash

- note [#issue](https://github.com/pingcap/tiflash/issues/${issue-id}) @[贡献者 GitHub ID](https://github.com/${github-id})
<!-- tw:@Oreoxmt (5) -->
- 修复在发生副本迁移时因 TiFlash 与 PD 之间网络链接不稳定可能导致 TiFlash panic 的问题 [#8323](https://github.com/pingcap/tiflash/issues/8323) @[JaySon-Huang](https://github.com/JaySon-Huang)
- 修复去除 TiFlash 副本后重新添加，可能导致 TiFlash 数据损坏的问题 [#8695](https://github.com/pingcap/tiflash/issues/8695) @[JaySon-Huang](https://github.com/JaySon-Huang)
- 修复在插入数据后马上进行 `DROP TABLE` 以及 `FLASHBACK TABLE` 或 `RECOVER TABLE` 操作后，部分 TiFlash 副本数据无法恢复的潜在问题 [#8395](https://github.com/pingcap/tiflash/issues/8395) @[JaySon-Huang](https://github.com/JaySon-Huang)
- 修复 Grafana 中部分面板的最大分位数耗时显示不正确的问题 [#8076](https://github.com/pingcap/tiflash/issues/8076) @[JaySon-Huang](https://github.com/JaySon-Huang)
- 修复 TiFlash 发生 remote 读时可能会 crash 的问题 [#8685](https://github.com/pingcap/tiflash/issues/8685) @[guo-shaoge](https://github.com/guo-shaoge)
- (dup): release-7.6.0.md > 错误修复> TiFlash - 修复 TiFlash 错误处理 `ENUM` 偏移量为 0 的问题 [#8311](https://github.com/pingcap/tiflash/issues/8311) @[solotzg](https://github.com/solotzg)
- (dup): release-7.6.0.md > 错误修复> TiFlash - 修复成功执行的短查询打印过多信息日志的问题 [#8592](https://github.com/pingcap/tiflash/issues/8592) @[windtalker](https://github.com/windtalker)
- (dup): release-6.5.7.md > 错误修复> TiFlash - 修复慢查询导致内存使用显著增加的问题 [#8564](https://github.com/pingcap/tiflash/issues/8564) @[JinheLin](https://github.com/JinheLin)
Expand All @@ -217,23 +209,20 @@ TiDB 版本：v7.5.1
- (dup): release-6.5.7.md > 错误修复> TiFlash - 修复在执行 `FLASHBACK DATABASE` 后 TiFlash 副本的数据仍会被 GC 回收的问题 [#8450](https://github.com/pingcap/tiflash/issues/8450) @[JaySon-Huang](https://github.com/JaySon-Huang)
- (dup): release-7.6.0.md > 错误修复> TiFlash - 修复存算分离架构下，可能无法正常选出对象存储数据 GC owner 的问题 [#8519](https://github.com/pingcap/tiflash/issues/8519) @[JaySon-Huang](https://github.com/JaySon-Huang)
- (dup): release-7.6.0.md > 错误修复> TiFlash - 修复 `GREATEST` 或 `LEAST` 函数在包含常量字符串参数时，可能发生的随机无效内存访问的问题 [#8604](https://github.com/pingcap/tiflash/issues/8604) @[windtalker](https://github.com/windtalker)
Oreoxmt marked this conversation as resolved.
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- 修复 TiFlash 发生 remote 读时可能会 crash 的问题 [#8685](https://github.com/pingcap/tiflash/issues/8685) @[guo-shaoge](https://github.com/guo-shaoge)

+ Tools

+ Backup & Restore (BR)

- note [#issue](https://github.com/pingcap/tidb/issues/${issue-id}) @[贡献者 GitHub ID](https://github.com/${github-id})
- note [#issue](https://github.com/pingcap/tidb/issues/${issue-id}) @[贡献者 GitHub ID](https://github.com/${github-id})
<!-- tw:@hfxsd (4) -->
- 修复因为某个 tikv 节点没有 leader 拖慢 restore 的问题 [#50566](https://github.com/pingcap/tidb/issues/50566) @[Leavrth](https://github.com/Leavrth)
- 全量恢复指定 --filter 选项后, 不必强制要求目标集群是空的 [#51009](https://github.com/pingcap/tidb/issues/51009) @[3pointer](https://github.com/3pointer)
- 修复一个 restore 过程中检查集群是否为空的问题 [#50232](https://github.com/pingcap/tidb/issues/50232) @[Leavrth](https://github.com/Leavrth)
- 修复一个停止 log backup 作业导致 tidb crash 的问题 [#50839](https://github.com/pingcap/tidb/issues/50839) @[YuJuncen](https://github.com/YuJuncen)
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- (dup): release-6.5.8.md > 错误修复> Tools> Backup & Restore (BR) - 修复从旧版本的备份恢复数据时报错 `Unsupported collation` 的问题 [#49466](https://github.com/pingcap/tidb/issues/49466) @[3pointer](https://github.com/3pointer)
- (dup): release-6.5.7.md > 错误修复> Tools> Backup & Restore (BR) - 修复在任务初始化阶段出现与 PD 的连接错误导致日志备份任务虽然启动但无法正常工作的问题 [#16056](https://github.com/tikv/tikv/issues/16056) @[YuJuncen](https://github.com/YuJuncen)
- (dup): release-7.1.3.md > 错误修复> Tools> Backup & Restore (BR) - 修复生成外部存储文件 URI 错误的问题 [#48452](https://github.com/pingcap/tidb/issues/48452) @[3AceShowHand](https://github.com/3AceShowHand)
- (dup): release-6.5.8.md > 错误修复> Tools> Backup & Restore (BR) - 修复在同一节点上更改 TiKV IP 地址导致日志备份卡住的问题 [#50445](https://github.com/pingcap/tidb/issues/50445) @[3pointer](https://github.com/3pointer)
- (dup): release-6.5.8.md > 错误修复> Tools> Backup & Restore (BR) - 修复从 S3 读文件内容时出错后无法重试的问题 [#49942](https://github.com/pingcap/tidb/issues/49942) @[Leavrth](https://github.com/Leavrth)
- 修复因为某个 tikv 节点没有 leader 拖慢 restore 的问题 [#50566](https://github.com/pingcap/tidb/issues/50566) @[Leavrth](https://github.com/Leavrth)
- 全量恢复指定 --filter 选项后, 不必强制要求目标集群是空的 [#51009](https://github.com/pingcap/tidb/issues/51009) @[3pointer](https://github.com/3pointer)
- 修复一个 restore 过程中检查集群是否为空的问题 [#50232](https://github.com/pingcap/tidb/issues/50232) @[Leavrth](https://github.com/Leavrth)
- 修复一个停止 log backup 作业导致 tidb crash 的问题 [#50839](https://github.com/pingcap/tidb/issues/50839) @[YuJuncen](https://github.com/YuJuncen)

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