releases: add TiDB 5.1.1 release notes by TomShawn · Pull Request #6733 · pingcap/docs-cn

TomShawn · 2021-07-26T07:43:22Z

What is changed, added or deleted? (Required)

add TiDB 5.1.1 release notes

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This PR is translated from: releases: add TiDB 5.1.1 release notes docs#6030
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ti-chi-bot · 2021-07-26T07:43:23Z

[REVIEW NOTIFICATION]

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Liuxiaozhen12

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solotzg · 2021-07-27T11:38:24Z

+
+## 改进提升
+
+## Bug 修复


TiFlash

修复处理扫表任务时出现进程崩溃的潜在问题

修复处理 DAG 请求时出现 duplicated region 报错的问题

修复读负载高的情况下进程崩溃的问题

修复执行 DateFormat 函数时出现进程崩溃的潜在问题

修复处理 MPP 任务时出现内存泄漏的潜在问题

修复执行 COUNT 或 COUNT DISTINCT 函数时出现非预期结果的问题

修复多盘部署时出现数据无法恢复的潜在问题

修复 TiDB Dashboard 无法正确显示 TiFlash 磁盘信息的问题

修复析构 SharedQueryBlockInputStream 时出现进程崩溃的潜在问题

修复析构 MPPTask 时出现进程崩溃的潜在问题

tabokie · 2021-07-28T09:58:28Z

+ TiKV

## 改进提升

    - 提高 prewrite 请求的幂等性以减少不确定性错误的概率 [#10586](https://github.com/tikv/tikv/pull/10586)
    - 预防处理过期请求时的栈溢出风险 [#10502](https://github.com/tikv/tikv/pull/10502)
    - 不使用 stale read 请求的 `start_ts` 更新 `max_ts` 以避免不必要的 commit 请求重试 [#10451](https://github.com/tikv/tikv/pull/10451)
    - 分离处理读写的 ready 状态以减少读延迟 [#10592](https://github.com/tikv/tikv/pull/10592)
    - 降低 I/O 限流器开启后对数据导入速度的影响 [#10390](https://github.com/tikv/tikv/pull/10390)
    - 提升 Raft gRPC 连接的负载均衡 [#10495](https://github.com/tikv/tikv/pull/10495)

## 问题修复

    - 修复某些平台上计时操作触发 panic 的问题 [#10569](https://github.com/tikv/tikv/pull/10569)
    - 修复 load-base-split 误用 `batch_get_command` 中未编码的键 [#10565](https://github.com/tikv/tikv/pull/10565)
    - 修复 `resolved-ts.advance-ts-interval` 在线配置无法立即起效的问题 [#10494](https://github.com/tikv/tikv/pull/10494)
    - 修复在超过 4 副本的罕见场景下 follower 元信息损坏的问题 [#10486](https://github.com/tikv/tikv/pull/10486)
    - 修复加密启用时两次构建快照触发 panic 的问题 [#10464](https://github.com/tikv/tikv/pull/10464)
    - 修正 `tikv_raftstore_hibernated_peer_state` 监控指标项 [#10432](https://github.com/tikv/tikv/pull/10432)
    - 修复 `json_unquote` 使用错误参数类型的问题 [#10428](https://github.com/tikv/tikv/pull/10428)
    - 修复悲观事务中索引键被重复 commit 的问题 [#10586](https://github.com/tikv/tikv/pull/10586)
    - 修复 `ReadIndex` 请求在 leader 迁移后返回过期数据的问题 [#10474](https://github.com/tikv/tikv/pull/10474)

TomShawn · 2021-07-30T02:17:43Z

+
+    - 修复了 `tidb_enable_amend_pessimistic_txn=on` 下更改列类型可能出现数据丢失的问题 [#26203](https://github.com/pingcap/tidb/issues/26203)
+    - 修复了 `last_day` 函数的行为在 SQL 模式下不兼容的问题 [#26001](https://github.com/pingcap/tidb/pull/26001)
+    ?- 修复 `LIMIT` 位于窗口函数之上时可能出现的 panic 问题 [#25980](https://github.com/pingcap/tidb/pull/25980)


@eurekaka PTAL this note. Thanks!

AilinKid · 2021-07-30T06:13:35Z

Rest LGTM

Co-authored-by: Arenatlx <ailinsilence4@gmail.com>

solotzg

LGTM

tabokie

LGTM

ti-chi-bot · 2021-07-30T08:23:17Z

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TomShawn · 2021-07-30T10:40:20Z

/remove-status LGT1
/status LGT2

TomShawn · 2021-07-30T10:40:26Z

/merge

ti-chi-bot · 2021-07-30T10:40:28Z

This pull request has been accepted and is ready to merge.

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Commit hash: a72c828

ti-chi-bot · 2021-07-30T10:41:43Z

In response to a cherrypick label: new pull request created: #6777.

releases: add TiDB 5.1.1 release notes

3e0f841

ti-chi-bot added missing-translation-status This PR does not have translation status info. size/S Denotes a PR that changes 10-29 lines, ignoring generated files. labels Jul 26, 2021

TomShawn mentioned this pull request Jul 26, 2021

releases: add TiDB 5.1.1 release notes pingcap/docs#6030

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TomShawn added needs-cherry-pick-release-5.1 translation/from-docs This PR is translated from a PR in pingcap/docs. labels Jul 26, 2021

ti-chi-bot removed the missing-translation-status This PR does not have translation status info. label Jul 26, 2021

TomShawn requested review from AilinKid, Yisaer, overvenus and solotzg July 27, 2021 07:00

solotzg reviewed Jul 27, 2021

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TomShawn requested a review from liuzix July 28, 2021 03:08

add tiflash notes

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Comment thread releases/release-5.1.1.md

add tools and tikv notes

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Comment thread releases/release-5.1.1.md

TomShawn added 3 commits July 29, 2021 11:39

refine

bba0e06

Merge remote-tracking branch 'upstream/master' into 5.1.1-rn

a011ac7

refine tikv, pd, tools, tiflash notes

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AilinKid reviewed Jul 29, 2021

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Comment thread releases/release-5.1.1.md

Comment thread releases/release-5.1.1.md

Comment thread releases/release-5.1.1.md

TomShawn added 2 commits July 29, 2021 15:25

add tidb notes

3e57072

review and rewrite for tidb notes

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TomShawn commented Jul 30, 2021

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TomShawn added 5 commits July 30, 2021 10:26

Update release-5.1.1.md

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change pr to issue

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change pr to issue

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fix

d471507

minor wording fix

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TomShawn requested review from AilinKid, Yisaer, liuzix and solotzg July 30, 2021 03:34

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Comment thread releases/release-5.1.1.md Outdated

Update releases/release-5.1.1.md

a72c828

Co-authored-by: Arenatlx <ailinsilence4@gmail.com>

solotzg reviewed Jul 30, 2021

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tabokie approved these changes Jul 30, 2021

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Liuxiaozhen12 approved these changes Jul 30, 2021

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ti-chi-bot merged commit 5845592 into pingcap:master Jul 30, 2021

TomShawn deleted the 5.1.1-rn branch July 30, 2021 10:41

ti-chi-bot mentioned this pull request Jul 30, 2021

releases: add TiDB 5.1.1 release notes (#6733) #6777

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ti-chi-bot mentioned this pull request Jul 30, 2021

releases: add TiDB 5.1.1 release notes (#6030) pingcap/docs#6065

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ti-chi-bot added a commit that referenced this pull request Jul 30, 2021

releases: add TiDB 5.1.1 release notes (#6733) (#6777)

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TomShawn commented Jul 26, 2021

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